Merge "Update the logic of querying crashed a11y services"
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index c48d51b..62803af 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -2981,6 +2981,8 @@
             <intent-filter>
                 <action android:name="android.service.quicksettings.action.QS_TILE" />
             </intent-filter>
+            <meta-data android:name="android.service.quicksettings.BOOLEAN_TILE"
+                       android:value="true"/>
         </service>
         <service
             android:name=".development.qstile.DevelopmentTiles$GPUProfiling"
@@ -2991,6 +2993,8 @@
             <intent-filter>
                 <action android:name="android.service.quicksettings.action.QS_TILE" />
             </intent-filter>
+            <meta-data android:name="android.service.quicksettings.BOOLEAN_TILE"
+                       android:value="true"/>
         </service>
         <service
             android:name=".development.qstile.DevelopmentTiles$ForceRTL"
@@ -3001,6 +3005,8 @@
             <intent-filter>
                 <action android:name="android.service.quicksettings.action.QS_TILE" />
             </intent-filter>
+            <meta-data android:name="android.service.quicksettings.BOOLEAN_TILE"
+                       android:value="true"/>
         </service>
         <service
             android:name=".development.qstile.DevelopmentTiles$AnimationSpeed"
@@ -3011,6 +3017,8 @@
             <intent-filter>
                 <action android:name="android.service.quicksettings.action.QS_TILE" />
             </intent-filter>
+            <meta-data android:name="android.service.quicksettings.BOOLEAN_TILE"
+                       android:value="true"/>
         </service>
 
         <service
@@ -3022,6 +3030,8 @@
             <intent-filter>
                 <action android:name="android.service.quicksettings.action.QS_TILE" />
             </intent-filter>
+            <meta-data android:name="android.service.quicksettings.BOOLEAN_TILE"
+                       android:value="true"/>
         </service>
 
         <service
@@ -3033,6 +3043,8 @@
             <intent-filter>
                 <action android:name="android.service.quicksettings.action.QS_TILE" />
             </intent-filter>
+            <meta-data android:name="android.service.quicksettings.BOOLEAN_TILE"
+                       android:value="true"/>
         </service>
 
         <activity
@@ -3088,6 +3100,8 @@
             </intent-filter>
             <meta-data android:name="com.android.settings.FRAGMENT_CLASS"
                        android:value="com.android.settings.bluetooth.BluetoothDeviceDetailsFragment" />
+            <meta-data android:name="com.android.settings.PRIMARY_PROFILE_CONTROLLED"
+                       android:value="true" />
         </activity>
 
         <activity android:name=".panel.SettingsPanelActivity"
diff --git a/PREUPLOAD.cfg b/PREUPLOAD.cfg
index 8e1ab2b..883e968 100644
--- a/PREUPLOAD.cfg
+++ b/PREUPLOAD.cfg
@@ -3,3 +3,4 @@
 
 strings_lint_hook = ${REPO_ROOT}/frameworks/base/tools/stringslint/stringslint_sha.sh ${PREUPLOAD_COMMIT}
 
+checkstyle_hook = ${REPO_ROOT}/prebuilts/checkstyle/checkstyle.py --sha ${PREUPLOAD_COMMIT}
diff --git a/res/drawable/ic_suggestion_close_button.xml b/res/drawable/ic_suggestion_close_button.xml
index 615b215..8b1f0f8 100644
--- a/res/drawable/ic_suggestion_close_button.xml
+++ b/res/drawable/ic_suggestion_close_button.xml
@@ -18,8 +18,10 @@
         android:width="24dp"
         android:height="24dp"
         android:viewportWidth="24.0"
-        android:viewportHeight="24.0">
+        android:viewportHeight="24.0"
+        android:tint="?android:attr/colorControlNormal">
+
     <path
-        android:fillColor="#FF000000"
+        android:fillColor="@android:color/white"
         android:pathData="M18.3,5.71a0.996,0.996 0,0 0,-1.41 0L12,10.59 7.11,5.7A0.996,0.996 0,1 0,5.7 7.11L10.59,12 5.7,16.89a0.996,0.996 0,1 0,1.41 1.41L12,13.41l4.89,4.89a0.996,0.996 0,1 0,1.41 -1.41L13.41,12l4.89,-4.89c0.38,-0.38 0.38,-1.02 0,-1.4z"/>
 </vector>
diff --git a/res/layout/profile_select_tablayout.xml b/res/layout/profile_select_tablayout.xml
new file mode 100644
index 0000000..afacaae
--- /dev/null
+++ b/res/layout/profile_select_tablayout.xml
@@ -0,0 +1,42 @@
+<!--
+  Copyright (C) 2019 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:theme="@style/Theme.MaterialComponents.DayNight"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <androidx.viewpager.widget.ViewPager
+        android:id="@+id/view_pager"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <com.google.android.material.tabs.TabLayout
+            android:background="@android:color/transparent"
+            android:id="@+id/tabs"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            app:tabMaxWidth="0dp"
+            app:tabGravity="fill"
+            app:tabMode="fixed"
+            app:tabIndicatorColor="@*android:color/accent_device_default"
+            app:tabSelectedTextColor="@*android:color/accent_device_default"
+            app:tabTextColor="?android:attr/textColorSecondary" />
+    </androidx.viewpager.widget.ViewPager>
+</LinearLayout>
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 1f2add0..ed5865a 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -329,11 +329,11 @@
     <string name="bluetooth_disable_a2dp_hw_offload_dialog_cancel">Cancel</string>
 
     <!-- Title for Bluetooth device group with media capability group [CHAR LIMIT=none]-->
-    <string name="connected_device_available_media_title">Available media devices</string>
+    <string name="connected_device_media_device_title">Media devices</string>
     <!-- Title for Bluetooth device group with media capability group [CHAR LIMIT=none]-->
-    <string name="connected_device_available_call_title">Available call devices</string>
+    <string name="connected_device_call_device_title">Call devices</string>
     <!-- Title for connected device group [CHAR LIMIT=none]-->
-    <string name="connected_device_connected_title">Currently connected</string>
+    <string name="connected_device_other_device_title">Other devices</string>
     <!-- Title for connected device group [CHAR LIMIT=none]-->
     <string name="connected_device_saved_title">Saved devices</string>
     <!-- Summary for preference to add a device [CHAR LIMIT=none]-->
@@ -1410,9 +1410,6 @@
         <item quantity="other">Must be fewer than <xliff:g id="number" example="17">%d</xliff:g> digits</item>
     </plurals>
 
-    <!-- Error shown when in PIN mode and user enters a non-digit -->
-    <string name="lockpassword_pin_contains_non_digits">Must contain only digits 0-9</string>
-
     <!-- Error shown when in PIN mode and PIN has been used recently. Please keep this string short! -->
     <string name="lockpassword_pin_recently_used">Device admin doesn\'t allow using a recent PIN</string>
 
@@ -1467,6 +1464,11 @@
         <item quantity="other">Must contain at least <xliff:g id="count" example="3">%d</xliff:g> non-letter characters</item>
     </plurals>
 
+    <plurals name="lockpassword_password_requires_nonnumerical">
+        <item quantity="one">Must contain at least 1 non-numerical character</item>
+        <item quantity="other">Must contain at least <xliff:g id="count" example="3">%d</xliff:g> non-numerical characters</item>
+    </plurals>
+
     <!-- Error shown when in PASSWORD mode and password has been used recently. Please keep this string short! -->
     <string name="lockpassword_password_recently_used">Device admin doesn\'t allow using a recent
         password</string>
@@ -4685,7 +4687,7 @@
     <!-- Title for the accessibility preference category of interaction control services and settings. [CHAR LIMIT=50] -->
     <string name="interaction_control_category_title">Interaction controls</string>
     <!-- Title for the accessibility preference category of services downloaded by the user. [CHAR LIMIT=50] -->
-    <string name="user_installed_services_category_title">Downloaded services</string>
+    <string name="user_installed_services_category_title">Downloaded apps</string>
     <!-- Title for the accessibility preference category of settings considered to be experimental, meaning they might be changed or removed in the future. [CHAR LIMIT=50] -->
     <string name="experimental_category_title">Experimental</string>
     <!-- Title for feature flags dashboard where developers can turn on experimental features [CHAR LIMIT=50] -->
@@ -4809,7 +4811,7 @@
     <!-- Title for accessibility preference for configuring touch feedback vibrations. -->
     <string name="accessibility_touch_vibration_title">Touch feedback</string>
     <!-- Used in the acessibilty service settings to control turning on/off the service entirely -->
-    <string name="accessibility_service_master_switch_title">Use service</string>
+    <string name="accessibility_service_master_switch_title">Use <xliff:g id="accessibility_app_name" example="TalkBack">%1$s</xliff:g></string>
     <!-- Used in the Color correction settings screen to control turning on/off the feature entirely -->
     <string name="accessibility_daltonizer_master_switch_title">Use color correction</string>
     <!-- Used in the Captions settings screen to control turning on/off the feature entirely -->
diff --git a/res/xml/accounts_personal_dashboard_settings.xml b/res/xml/accounts_personal_dashboard_settings.xml
new file mode 100644
index 0000000..db57e3d
--- /dev/null
+++ b/res/xml/accounts_personal_dashboard_settings.xml
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright (C) 2019 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<PreferenceScreen
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:settings="http://schemas.android.com/apk/res-auto"
+    android:key="user_and_account_settings_screen"
+    android:title="@string/account_dashboard_title"
+    settings:keywords="@string/keywords_accounts">
+
+    <PreferenceCategory
+        android:key="dashboard_tile_placeholder"
+        android:order="30"/>
+
+    <SwitchPreference
+        android:key="auto_sync_account_data"
+        android:title="@string/auto_sync_account_title"
+        android:summary="@string/auto_sync_account_summary"
+        android:order="100"
+        settings:allowDividerAbove="true"/>
+
+    <SwitchPreference
+        android:key="auto_sync_personal_account_data"
+        android:title="@string/account_settings_menu_auto_sync_personal"
+        android:summary="@string/auto_sync_account_summary"
+        android:order="110"/>
+
+</PreferenceScreen>
diff --git a/res/xml/accounts_work_dashboard_settings.xml b/res/xml/accounts_work_dashboard_settings.xml
new file mode 100644
index 0000000..b27357d
--- /dev/null
+++ b/res/xml/accounts_work_dashboard_settings.xml
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright (C) 2019 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<PreferenceScreen
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:settings="http://schemas.android.com/apk/res-auto"
+    android:key="user_and_account_settings_screen"
+    android:title="@string/account_dashboard_title"
+    settings:keywords="@string/keywords_accounts">
+
+    <PreferenceCategory
+        android:key="dashboard_tile_placeholder"
+        android:order="30"/>
+
+    <SwitchPreference
+        android:key="auto_sync_account_data"
+        android:title="@string/auto_sync_account_title"
+        android:summary="@string/auto_sync_account_summary"
+        android:order="100"
+        settings:allowDividerAbove="true"/>
+
+    <SwitchPreference
+        android:key="auto_sync_work_account_data"
+        android:title="@string/account_settings_menu_auto_sync_work"
+        android:summary="@string/auto_sync_account_summary"
+        android:order="110"/>
+
+</PreferenceScreen>
diff --git a/res/xml/connected_devices.xml b/res/xml/connected_devices.xml
index a210ea5..0e5afc3 100644
--- a/res/xml/connected_devices.xml
+++ b/res/xml/connected_devices.xml
@@ -28,12 +28,12 @@
 
     <PreferenceCategory
         android:key="available_device_list"
-        android:title="@string/connected_device_available_media_title"
+        android:title="@string/connected_device_media_device_title"
         settings:controller="com.android.settings.connecteddevice.AvailableMediaDeviceGroupController"/>
 
     <PreferenceCategory
         android:key="connected_device_list"
-        android:title="@string/connected_device_connected_title"
+        android:title="@string/connected_device_other_device_title"
         settings:controller="com.android.settings.connecteddevice.ConnectedDeviceGroupController"/>
 
     <com.android.settingslib.RestrictedPreference
diff --git a/res/xml/tether_prefs.xml b/res/xml/tether_prefs.xml
index 3f9b8c8..54c49e8 100644
--- a/res/xml/tether_prefs.xml
+++ b/res/xml/tether_prefs.xml
@@ -23,7 +23,7 @@
     <com.android.settings.widget.FixedLineSummaryPreference
         android:key="wifi_tether"
         android:title="@string/wifi_hotspot_checkbox_text"
-        android:summary="@string/summary_two_lines_placeholder"
+        android:summary="@string/summary_placeholder"
         android:fragment="com.android.settings.wifi.tether.WifiTetherSettings"
         settings:summaryLineCount="2" />
 
diff --git a/src/com/android/settings/CryptKeeper.java b/src/com/android/settings/CryptKeeper.java
index 05054b4..604333f 100644
--- a/src/com/android/settings/CryptKeeper.java
+++ b/src/com/android/settings/CryptKeeper.java
@@ -727,7 +727,7 @@
         public void onPatternDetected(List<LockPatternView.Cell> pattern) {
             mLockPatternView.setEnabled(false);
             if (pattern.size() >= MIN_LENGTH_BEFORE_REPORT) {
-                new DecryptTask().execute(LockPatternUtils.patternToString(pattern));
+                new DecryptTask().execute(new String(LockPatternUtils.patternToByteArray(pattern)));
             } else {
                 // Allow user to make as many of these as they want.
                 fakeUnlockAttempt(mLockPatternView);
diff --git a/src/com/android/settings/RegulatoryInfoDisplayActivity.java b/src/com/android/settings/RegulatoryInfoDisplayActivity.java
index 4c7515d..20aafc2 100644
--- a/src/com/android/settings/RegulatoryInfoDisplayActivity.java
+++ b/src/com/android/settings/RegulatoryInfoDisplayActivity.java
@@ -60,12 +60,6 @@
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        Resources resources = getResources();
-
-        if (!resources.getBoolean(R.bool.config_show_regulatory_info)) {
-            finish();   // no regulatory info to display for this device
-        }
-
         AlertDialog.Builder builder = new AlertDialog.Builder(this)
                 .setTitle(R.string.regulatory_labels)
                 .setOnDismissListener(this);
@@ -95,7 +89,8 @@
             }
         }
 
-        CharSequence regulatoryText = resources.getText(R.string.regulatory_info_text);
+        CharSequence regulatoryText = getResources()
+                .getText(R.string.regulatory_info_text);
 
         if (regulatoryInfoDrawableExists) {
             View view = getLayoutInflater().inflate(R.layout.regulatory_info, null);
diff --git a/src/com/android/settings/SettingsActivity.java b/src/com/android/settings/SettingsActivity.java
index 9270a5a..4d813d5 100644
--- a/src/com/android/settings/SettingsActivity.java
+++ b/src/com/android/settings/SettingsActivity.java
@@ -35,6 +35,7 @@
 import android.os.UserHandle;
 import android.os.UserManager;
 import android.text.TextUtils;
+import android.util.FeatureFlagUtils;
 import android.util.Log;
 import android.view.View;
 import android.widget.Button;
@@ -52,11 +53,13 @@
 import com.android.internal.util.ArrayUtils;
 import com.android.settings.Settings.WifiSettingsActivity;
 import com.android.settings.applications.manageapplications.ManageApplications;
+import com.android.settings.core.FeatureFlags;
 import com.android.settings.core.OnActivityResultListener;
 import com.android.settings.core.SettingsBaseActivity;
 import com.android.settings.core.SubSettingLauncher;
 import com.android.settings.core.gateway.SettingsGateway;
 import com.android.settings.dashboard.DashboardFeatureProvider;
+import com.android.settings.dashboard.profileselector.ProfileFragmentBridge;
 import com.android.settings.homepage.TopLevelSettings;
 import com.android.settings.overlay.FeatureFactory;
 import com.android.settings.wfd.WifiDisplaySettings;
@@ -565,7 +568,15 @@
             throw new IllegalArgumentException("Invalid fragment for this activity: "
                     + fragmentName);
         }
-        Fragment f = Fragment.instantiate(this, fragmentName, args);
+        Fragment f = null;
+        if (FeatureFlagUtils.isEnabled(this, FeatureFlags.PERSONAL_WORK_PROFILE)
+                && UserManager.get(this).getUserProfiles().size() > 1
+                && ProfileFragmentBridge.FRAGMENT_MAP.get(fragmentName) != null) {
+            f = Fragment.instantiate(this, ProfileFragmentBridge.FRAGMENT_MAP.get(fragmentName),
+                    args);
+        } else {
+            f = Fragment.instantiate(this, fragmentName, args);
+        }
         FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
         transaction.replace(R.id.main_content, f);
         if (titleResId > 0) {
diff --git a/src/com/android/settings/accessibility/AccessibilityShortcutPreferenceFragment.java b/src/com/android/settings/accessibility/AccessibilityShortcutPreferenceFragment.java
index 95a2b76..ab855bc 100644
--- a/src/com/android/settings/accessibility/AccessibilityShortcutPreferenceFragment.java
+++ b/src/com/android/settings/accessibility/AccessibilityShortcutPreferenceFragment.java
@@ -34,6 +34,7 @@
 
 import com.android.internal.accessibility.AccessibilityShortcutController;
 import com.android.settings.R;
+import com.android.settings.widget.SwitchBar;
 import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settingslib.search.Indexable;
 import com.android.settingslib.accessibility.AccessibilityUtils;
@@ -126,6 +127,13 @@
         updatePreferences();
     }
 
+    @Override
+    protected void updateSwitchBarText(SwitchBar switchBar) {
+        final String switchBarText = getString(R.string.accessibility_service_master_switch_title,
+                getString(R.string.accessibility_global_gesture_preference_title));
+        switchBar.setSwitchBarText(switchBarText, switchBarText);
+    }
+
     private void updatePreferences() {
         ContentResolver cr = getContentResolver();
         Context context = getContext();
diff --git a/src/com/android/settings/accessibility/ToggleAccessibilityServicePreferenceFragment.java b/src/com/android/settings/accessibility/ToggleAccessibilityServicePreferenceFragment.java
index 1556bec..f30af54 100644
--- a/src/com/android/settings/accessibility/ToggleAccessibilityServicePreferenceFragment.java
+++ b/src/com/android/settings/accessibility/ToggleAccessibilityServicePreferenceFragment.java
@@ -44,6 +44,7 @@
 import com.android.internal.widget.LockPatternUtils;
 import com.android.settings.R;
 import com.android.settings.password.ConfirmDeviceCredentialActivity;
+import com.android.settings.widget.SwitchBar;
 import com.android.settings.widget.ToggleSwitch;
 import com.android.settings.widget.ToggleSwitch.OnBeforeCheckedChangeListener;
 import com.android.settingslib.accessibility.AccessibilityUtils;
@@ -211,6 +212,15 @@
         }
     }
 
+    @Override
+    protected void updateSwitchBarText(SwitchBar switchBar) {
+        final AccessibilityServiceInfo info = getAccessibilityServiceInfo();
+        final String switchBarText = (info == null) ? "" :
+                getString(R.string.accessibility_service_master_switch_title,
+                info.getResolveInfo().loadLabel(getPackageManager()));
+        switchBar.setSwitchBarText(switchBarText, switchBarText);
+    }
+
     private void updateSwitchBarToggleSwitch() {
         final boolean checked = AccessibilityUtils.getEnabledServicesFromSettings(getActivity())
                 .contains(mComponentName);
diff --git a/src/com/android/settings/accessibility/ToggleAutoclickPreferenceFragment.java b/src/com/android/settings/accessibility/ToggleAutoclickPreferenceFragment.java
index df72cff..45dd39e 100644
--- a/src/com/android/settings/accessibility/ToggleAutoclickPreferenceFragment.java
+++ b/src/com/android/settings/accessibility/ToggleAutoclickPreferenceFragment.java
@@ -172,6 +172,13 @@
         return false;
     }
 
+    @Override
+    protected void updateSwitchBarText(SwitchBar switchBar) {
+        final String switchBarText = getString(R.string.accessibility_service_master_switch_title,
+                getString(R.string.accessibility_autoclick_preference_title));
+        switchBar.setSwitchBarText(switchBarText, switchBarText);
+    }
+
     /**
      * Converts seek bar preference progress value to autoclick delay associated with it.
      */
diff --git a/src/com/android/settings/accessibility/ToggleDaltonizerPreferenceFragment.java b/src/com/android/settings/accessibility/ToggleDaltonizerPreferenceFragment.java
index c5376eb..e02a74a 100644
--- a/src/com/android/settings/accessibility/ToggleDaltonizerPreferenceFragment.java
+++ b/src/com/android/settings/accessibility/ToggleDaltonizerPreferenceFragment.java
@@ -105,8 +105,9 @@
 
     @Override
     protected void updateSwitchBarText(SwitchBar switchBar) {
-        switchBar.setSwitchBarText(R.string.accessibility_daltonizer_master_switch_title,
-                R.string.accessibility_daltonizer_master_switch_title);
+        final String switchBarText = getString(R.string.accessibility_service_master_switch_title,
+                getString(R.string.accessibility_display_daltonizer_preference_title));
+        switchBar.setSwitchBarText(switchBarText, switchBarText);
     }
 
     private void initPreferences() {
diff --git a/src/com/android/settings/accessibility/ToggleFeaturePreferenceFragment.java b/src/com/android/settings/accessibility/ToggleFeaturePreferenceFragment.java
index 314a577..a4b1878 100644
--- a/src/com/android/settings/accessibility/ToggleFeaturePreferenceFragment.java
+++ b/src/com/android/settings/accessibility/ToggleFeaturePreferenceFragment.java
@@ -58,10 +58,10 @@
 
         SettingsActivity activity = (SettingsActivity) getActivity();
         mSwitchBar = activity.getSwitchBar();
-        updateSwitchBarText(mSwitchBar);
         mToggleSwitch = mSwitchBar.getSwitch();
 
         onProcessArguments(getArguments());
+        updateSwitchBarText(mSwitchBar);
 
         // Show the "Settings" menu as if it were a preference screen
         if (mSettingsTitle != null && mSettingsIntent != null) {
diff --git a/src/com/android/settings/accessibility/ToggleScreenMagnificationPreferenceFragment.java b/src/com/android/settings/accessibility/ToggleScreenMagnificationPreferenceFragment.java
index ec3ebcc..842ec5c 100644
--- a/src/com/android/settings/accessibility/ToggleScreenMagnificationPreferenceFragment.java
+++ b/src/com/android/settings/accessibility/ToggleScreenMagnificationPreferenceFragment.java
@@ -50,6 +50,7 @@
         ToggleFeaturePreferenceFragment implements SwitchBar.OnSwitchChangeListener {
 
     private static final int DIALOG_ID_GESTURE_NAVIGATION_TUTORIAL = 1;
+    private static final int DIALOG_ID_ACCESSIBILITY_BUTTON_TUTORIAL = 2;
 
     private Dialog mDialog;
 
@@ -172,14 +173,17 @@
 
     @Override
     public Dialog onCreateDialog(int dialogId) {
-        if (dialogId == DIALOG_ID_GESTURE_NAVIGATION_TUTORIAL) {
-            if (isGestureNavigateEnabled()) {
+        switch (dialogId) {
+            case DIALOG_ID_GESTURE_NAVIGATION_TUTORIAL:
                 mDialog = AccessibilityGestureNavigationTutorial
                         .showGestureNavigationTutorialDialog(getActivity());
-            } else {
+                break;
+            case DIALOG_ID_ACCESSIBILITY_BUTTON_TUTORIAL:
                 mDialog = AccessibilityGestureNavigationTutorial
                         .showAccessibilityButtonTutorialDialog(getActivity());
-            }
+                break;
+            default:
+                throw new IllegalArgumentException();
         }
 
         return mDialog;
@@ -193,7 +197,14 @@
 
     @Override
     public int getDialogMetricsCategory(int dialogId) {
-        return SettingsEnums.ACCESSIBILITY_TOGGLE_SCREEN_MAGNIFICATION;
+        switch (dialogId) {
+            case DIALOG_ID_GESTURE_NAVIGATION_TUTORIAL:
+                return SettingsEnums.DIALOG_TOGGLE_SCREEN_MAGNIFICATION_GESTURE_NAVIGATION;
+            case DIALOG_ID_ACCESSIBILITY_BUTTON_TUTORIAL:
+                return SettingsEnums.DIALOG_TOGGLE_SCREEN_MAGNIFICATION_ACCESSIBILITY_BUTTON;
+            default:
+                return 0;
+        }
     }
 
     @Override
@@ -206,7 +217,8 @@
         if (enabled && TextUtils.equals(
                 Settings.Secure.ACCESSIBILITY_DISPLAY_MAGNIFICATION_NAVBAR_ENABLED,
                 preferenceKey)) {
-            showDialog(DIALOG_ID_GESTURE_NAVIGATION_TUTORIAL);
+            showDialog(isGestureNavigateEnabled() ? DIALOG_ID_GESTURE_NAVIGATION_TUTORIAL
+                    : DIALOG_ID_ACCESSIBILITY_BUTTON_TUTORIAL);
         }
         MagnificationPreferenceFragment.setChecked(getContentResolver(), preferenceKey, enabled);
         updateConfigurationWarningIfNeeded();
@@ -228,6 +240,13 @@
     }
 
     @Override
+    protected void updateSwitchBarText(SwitchBar switchBar) {
+        final String switchBarText = getString(R.string.accessibility_service_master_switch_title,
+                getString(R.string.accessibility_screen_magnification_title));
+        switchBar.setSwitchBarText(switchBarText, switchBarText);
+    }
+
+    @Override
     protected void onProcessArguments(Bundle arguments) {
         super.onProcessArguments(arguments);
         if (arguments == null) {
diff --git a/src/com/android/settings/accounts/AccountDashboardFragment.java b/src/com/android/settings/accounts/AccountDashboardFragment.java
index 83f071a..46c08ab 100644
--- a/src/com/android/settings/accounts/AccountDashboardFragment.java
+++ b/src/com/android/settings/accounts/AccountDashboardFragment.java
@@ -23,6 +23,7 @@
 import com.android.settings.R;
 import com.android.settings.SettingsPreferenceFragment;
 import com.android.settings.dashboard.DashboardFragment;
+import com.android.settings.dashboard.profileselector.ProfileSelectFragment;
 import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settings.users.AutoSyncDataPreferenceController;
 import com.android.settings.users.AutoSyncPersonalDataPreferenceController;
@@ -70,7 +71,8 @@
         final List<AbstractPreferenceController> controllers = new ArrayList<>();
 
         final AccountPreferenceController accountPrefController =
-                new AccountPreferenceController(context, parent, authorities);
+                new AccountPreferenceController(context, parent, authorities,
+                        ProfileSelectFragment.ALL);
         if (parent != null) {
             parent.getSettingsLifecycle().addObserver(accountPrefController);
         }
diff --git a/src/com/android/settings/accounts/AccountPersonalDashboardFragment.java b/src/com/android/settings/accounts/AccountPersonalDashboardFragment.java
new file mode 100644
index 0000000..e0db7f5
--- /dev/null
+++ b/src/com/android/settings/accounts/AccountPersonalDashboardFragment.java
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.accounts;
+
+import static android.provider.Settings.EXTRA_AUTHORITIES;
+
+import android.app.settings.SettingsEnums;
+import android.content.Context;
+
+import com.android.settings.R;
+import com.android.settings.SettingsPreferenceFragment;
+import com.android.settings.dashboard.DashboardFragment;
+import com.android.settings.dashboard.profileselector.ProfileSelectFragment;
+import com.android.settings.users.AutoSyncDataPreferenceController;
+import com.android.settings.users.AutoSyncPersonalDataPreferenceController;
+import com.android.settingslib.core.AbstractPreferenceController;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Account Setting page for personal profile.
+ */
+public class AccountPersonalDashboardFragment extends DashboardFragment {
+
+    private static final String TAG = "AccountPersonalFrag";
+
+    @Override
+    public int getMetricsCategory() {
+        return SettingsEnums.ACCOUNT;
+    }
+
+    @Override
+    protected String getLogTag() {
+        return TAG;
+    }
+
+    @Override
+    protected int getPreferenceScreenResId() {
+        return R.xml.accounts_personal_dashboard_settings;
+    }
+
+    @Override
+    public int getHelpResource() {
+        return R.string.help_url_user_and_account_dashboard;
+    }
+
+    @Override
+    protected List<AbstractPreferenceController> createPreferenceControllers(Context context) {
+        final String[] authorities = getIntent().getStringArrayExtra(EXTRA_AUTHORITIES);
+        return buildPreferenceControllers(context, this /* parent */, authorities);
+    }
+
+    private static List<AbstractPreferenceController> buildPreferenceControllers(Context context,
+            SettingsPreferenceFragment parent, String[] authorities) {
+        final List<AbstractPreferenceController> controllers = new ArrayList<>();
+
+        final AccountPreferenceController accountPrefController =
+                new AccountPreferenceController(context, parent, authorities,
+                        ProfileSelectFragment.PERSONAL);
+        if (parent != null) {
+            parent.getSettingsLifecycle().addObserver(accountPrefController);
+        }
+        controllers.add(accountPrefController);
+        controllers.add(new AutoSyncDataPreferenceController(context, parent));
+        controllers.add(new AutoSyncPersonalDataPreferenceController(context, parent));
+        return controllers;
+    }
+
+    // TODO: b/141601408. After featureFlag settings_work_profile is launched, unmark this
+//    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+//            new BaseSearchIndexProvider(R.xml.accounts_personal_dashboard_settings) {
+//
+//                @Override
+//                public List<AbstractPreferenceController> createPreferenceControllers(
+//                        Context context) {
+//                    return buildPreferenceControllers(
+//                            context, null /* parent */, null /* authorities*/);
+//                }
+//            };
+}
diff --git a/src/com/android/settings/accounts/AccountPreferenceController.java b/src/com/android/settings/accounts/AccountPreferenceController.java
index 5c930e2..8e3e702 100644
--- a/src/com/android/settings/accounts/AccountPreferenceController.java
+++ b/src/com/android/settings/accounts/AccountPreferenceController.java
@@ -53,8 +53,8 @@
 import com.android.settings.Utils;
 import com.android.settings.core.PreferenceControllerMixin;
 import com.android.settings.core.SubSettingLauncher;
+import com.android.settings.dashboard.profileselector.ProfileSelectFragment;
 import com.android.settings.overlay.FeatureFactory;
-import com.android.settingslib.search.SearchIndexableRaw;
 import com.android.settingslib.RestrictedPreference;
 import com.android.settingslib.accounts.AuthenticatorHelper;
 import com.android.settingslib.core.AbstractPreferenceController;
@@ -62,6 +62,7 @@
 import com.android.settingslib.core.lifecycle.LifecycleObserver;
 import com.android.settingslib.core.lifecycle.events.OnPause;
 import com.android.settingslib.core.lifecycle.events.OnResume;
+import com.android.settingslib.search.SearchIndexableRaw;
 
 import java.util.ArrayList;
 import java.util.Collections;
@@ -81,8 +82,8 @@
 
     private UserManager mUm;
     private SparseArray<ProfileData> mProfiles = new SparseArray<ProfileData>();
-    private ManagedProfileBroadcastReceiver mManagedProfileBroadcastReceiver
-                = new ManagedProfileBroadcastReceiver();
+    private ManagedProfileBroadcastReceiver mManagedProfileBroadcastReceiver =
+            new ManagedProfileBroadcastReceiver();
     private Preference mProfileNotAvailablePreference;
     private String[] mAuthorities;
     private int mAuthoritiesCount = 0;
@@ -90,6 +91,7 @@
     private int mAccountProfileOrder = ORDER_ACCOUNT_PROFILES;
     private AccountRestrictionHelper mHelper;
     private MetricsFeatureProvider mMetricsFeatureProvider;
+    private @ProfileSelectFragment.ProfileType int mType;
 
     /**
      * Holds data related to the accounts belonging to one profile.
@@ -130,13 +132,14 @@
     }
 
     public AccountPreferenceController(Context context, SettingsPreferenceFragment parent,
-        String[] authorities) {
-        this(context, parent, authorities, new AccountRestrictionHelper(context));
+            String[] authorities, @ProfileSelectFragment.ProfileType int type) {
+        this(context, parent, authorities, new AccountRestrictionHelper(context), type);
     }
 
     @VisibleForTesting
     AccountPreferenceController(Context context, SettingsPreferenceFragment parent,
-        String[] authorities, AccountRestrictionHelper helper) {
+            String[] authorities, AccountRestrictionHelper helper,
+            @ProfileSelectFragment.ProfileType int type) {
         super(context);
         mUm = (UserManager) context.getSystemService(Context.USER_SERVICE);
         mAuthorities = authorities;
@@ -147,6 +150,7 @@
         final FeatureFactory featureFactory = FeatureFactory.getFactory(mContext);
         mMetricsFeatureProvider = featureFactory.getMetricsFeatureProvider();
         mHelper = helper;
+        mType = type;
     }
 
     @Override
@@ -186,7 +190,7 @@
                 }
                 if (userInfo.isManagedProfile()) {
                     if (!mHelper.hasBaseUserRestriction(DISALLOW_REMOVE_MANAGED_PROFILE,
-                        UserHandle.myUserId())) {
+                            UserHandle.myUserId())) {
                         SearchIndexableRaw data = new SearchIndexableRaw(mContext);
                         data.title = res.getString(R.string.remove_managed_profile_label);
                         data.screenTitle = screenTitle;
@@ -277,7 +281,13 @@
             List<UserInfo> profiles = mUm.getProfiles(UserHandle.myUserId());
             final int profilesCount = profiles.size();
             for (int i = 0; i < profilesCount; i++) {
-                updateProfileUi(profiles.get(i));
+                if (profiles.get(i).isManagedProfile()
+                        && (mType & ProfileSelectFragment.WORK) != 0) {
+                    updateProfileUi(profiles.get(i));
+                } else if (!profiles.get(i).isManagedProfile()
+                        && (mType & ProfileSelectFragment.PERSONAL) != 0) {
+                    updateProfileUi(profiles.get(i));
+                }
             }
         }
         cleanUpPreferences();
@@ -302,7 +312,7 @@
             if (userInfo.isEnabled()) {
                 // recreate the authentication helper to refresh the list of enabled accounts
                 data.authenticatorHelper =
-                    new AuthenticatorHelper(mContext, userInfo.getUserHandle(), this);
+                        new AuthenticatorHelper(mContext, userInfo.getUserHandle(), this);
             }
             return;
         }
@@ -310,27 +320,28 @@
         final ProfileData profileData = new ProfileData();
         profileData.userInfo = userInfo;
         AccessiblePreferenceCategory preferenceGroup =
-            mHelper.createAccessiblePreferenceCategory(mParent.getPreferenceManager().getContext());
+                mHelper.createAccessiblePreferenceCategory(
+                        mParent.getPreferenceManager().getContext());
         preferenceGroup.setOrder(mAccountProfileOrder++);
         if (isSingleProfile()) {
             preferenceGroup.setTitle(context.getString(R.string.account_for_section_header,
                     BidiFormatter.getInstance().unicodeWrap(userInfo.name)));
             preferenceGroup.setContentDescription(
-                mContext.getString(R.string.account_settings));
+                    mContext.getString(R.string.account_settings));
         } else if (userInfo.isManagedProfile()) {
             preferenceGroup.setTitle(R.string.category_work);
             String workGroupSummary = getWorkGroupSummary(context, userInfo);
             preferenceGroup.setSummary(workGroupSummary);
             preferenceGroup.setContentDescription(
-                mContext.getString(R.string.accessibility_category_work, workGroupSummary));
+                    mContext.getString(R.string.accessibility_category_work, workGroupSummary));
             profileData.removeWorkProfilePreference = newRemoveWorkProfilePreference();
             mHelper.enforceRestrictionOnPreference(profileData.removeWorkProfilePreference,
-                DISALLOW_REMOVE_MANAGED_PROFILE, UserHandle.myUserId());
+                    DISALLOW_REMOVE_MANAGED_PROFILE, UserHandle.myUserId());
             profileData.managedProfilePreference = newManagedProfileSettings();
         } else {
             preferenceGroup.setTitle(R.string.category_personal);
             preferenceGroup.setContentDescription(
-                mContext.getString(R.string.accessibility_category_personal));
+                    mContext.getString(R.string.accessibility_category_personal));
         }
         final PreferenceScreen screen = mParent.getPreferenceScreen();
         if (screen != null) {
@@ -342,14 +353,14 @@
                     userInfo.getUserHandle(), this);
             profileData.addAccountPreference = newAddAccountPreference();
             mHelper.enforceRestrictionOnPreference(profileData.addAccountPreference,
-                DISALLOW_MODIFY_ACCOUNTS, userInfo.id);
+                    DISALLOW_MODIFY_ACCOUNTS, userInfo.id);
         }
         mProfiles.put(userInfo.id, profileData);
     }
 
     private RestrictedPreference newAddAccountPreference() {
         RestrictedPreference preference =
-            new RestrictedPreference(mParent.getPreferenceManager().getContext());
+                new RestrictedPreference(mParent.getPreferenceManager().getContext());
         preference.setTitle(R.string.add_account_label);
         preference.setIcon(R.drawable.ic_add_24dp);
         preference.setOnPreferenceClickListener(this);
@@ -359,7 +370,7 @@
 
     private RestrictedPreference newRemoveWorkProfilePreference() {
         RestrictedPreference preference = new RestrictedPreference(
-            mParent.getPreferenceManager().getContext());
+                mParent.getPreferenceManager().getContext());
         preference.setTitle(R.string.remove_managed_profile_label);
         preference.setIcon(R.drawable.ic_delete);
         preference.setOnPreferenceClickListener(this);
@@ -393,7 +404,7 @@
             return;
         }
         final int count = mProfiles.size();
-        for (int i = count-1; i >= 0; i--) {
+        for (int i = count - 1; i >= 0; i--) {
             final ProfileData data = mProfiles.valueAt(i);
             if (data.pendingRemoval) {
                 screen.removePreference(data.preferenceGroup);
@@ -449,7 +460,7 @@
             }
             for (String key : preferenceToRemove.keySet()) {
                 profileData.preferenceGroup.removePreference(
-                    profileData.accountPreferences.get(key));
+                        profileData.accountPreferences.get(key));
                 profileData.accountPreferences.remove(key);
             }
         } else {
@@ -457,7 +468,7 @@
             // Put a label instead of the accounts list
             if (mProfileNotAvailablePreference == null) {
                 mProfileNotAvailablePreference =
-                    new Preference(mParent.getPreferenceManager().getContext());
+                        new Preference(mParent.getPreferenceManager().getContext());
             }
             mProfileNotAvailablePreference.setEnabled(false);
             mProfileNotAvailablePreference.setIcon(R.drawable.empty_icon);
@@ -507,26 +518,26 @@
                     continue;
                 }
                 final ArrayList<String> auths =
-                    helper.getAuthoritiesForAccountType(account.type);
+                        helper.getAuthoritiesForAccountType(account.type);
                 if (!AccountRestrictionHelper.showAccount(mAuthorities, auths)) {
                     continue;
                 }
                 final Bundle fragmentArguments = new Bundle();
                 fragmentArguments.putParcelable(AccountDetailDashboardFragment.KEY_ACCOUNT,
-                    account);
+                        account);
                 fragmentArguments.putParcelable(AccountDetailDashboardFragment.KEY_USER_HANDLE,
-                    userHandle);
+                        userHandle);
                 fragmentArguments.putString(AccountDetailDashboardFragment.KEY_ACCOUNT_TYPE,
-                    accountType);
+                        accountType);
                 fragmentArguments.putString(AccountDetailDashboardFragment.KEY_ACCOUNT_LABEL,
-                    label.toString());
+                        label.toString());
                 fragmentArguments.putInt(AccountDetailDashboardFragment.KEY_ACCOUNT_TITLE_RES,
-                    titleResId);
+                        titleResId);
                 fragmentArguments.putParcelable(EXTRA_USER, userHandle);
                 accountTypePreferences.add(new AccountTypePreference(
-                    prefContext, mMetricsFeatureProvider.getMetricsCategory(mParent),
-                    account, titleResPackageName, titleResId, label,
-                    AccountDetailDashboardFragment.class.getName(), fragmentArguments, icon));
+                        prefContext, mMetricsFeatureProvider.getMetricsCategory(mParent),
+                        account, titleResPackageName, titleResId, label,
+                        AccountDetailDashboardFragment.class.getName(), fragmentArguments, icon));
             }
             helper.preloadDrawableForType(mContext, accountType);
         }
@@ -536,7 +547,7 @@
             public int compare(AccountTypePreference t1, AccountTypePreference t2) {
                 int result = t1.getSummary().toString().compareTo(t2.getSummary().toString());
                 return result != 0
-                    ? result : t1.getTitle().toString().compareTo(t2.getTitle().toString());
+                        ? result : t1.getTitle().toString().compareTo(t2.getTitle().toString());
             }
         });
         return accountTypePreferences;
diff --git a/src/com/android/settings/accounts/AccountProfileSelectFragment.java b/src/com/android/settings/accounts/AccountProfileSelectFragment.java
new file mode 100644
index 0000000..128596d
--- /dev/null
+++ b/src/com/android/settings/accounts/AccountProfileSelectFragment.java
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.accounts;
+import androidx.fragment.app.Fragment;
+
+import com.android.settings.dashboard.profileselector.ProfileSelectFragment;
+
+/**
+ * Account Setting page for personal/managed profile.
+ */
+public class AccountProfileSelectFragment extends ProfileSelectFragment {
+
+    @Override
+    public Fragment[] getFragments() {
+        return new Fragment[] {
+                new AccountPersonalDashboardFragment(),
+                new AccountWorkProfileDashboardFragment()
+        };
+    }
+}
diff --git a/src/com/android/settings/accounts/AccountWorkProfileDashboardFragment.java b/src/com/android/settings/accounts/AccountWorkProfileDashboardFragment.java
new file mode 100644
index 0000000..a31340a
--- /dev/null
+++ b/src/com/android/settings/accounts/AccountWorkProfileDashboardFragment.java
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.accounts;
+
+import static android.provider.Settings.EXTRA_AUTHORITIES;
+
+import android.app.settings.SettingsEnums;
+import android.content.Context;
+
+import com.android.settings.R;
+import com.android.settings.SettingsPreferenceFragment;
+import com.android.settings.dashboard.DashboardFragment;
+import com.android.settings.dashboard.profileselector.ProfileSelectFragment;
+import com.android.settings.users.AutoSyncDataPreferenceController;
+import com.android.settings.users.AutoSyncWorkDataPreferenceController;
+import com.android.settingslib.core.AbstractPreferenceController;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Account Setting page for work profile.
+ */
+public class AccountWorkProfileDashboardFragment extends DashboardFragment {
+
+    private static final String TAG = "AccountWorkProfileFrag";
+
+    @Override
+    public int getMetricsCategory() {
+        return SettingsEnums.ACCOUNT;
+    }
+
+    @Override
+    protected String getLogTag() {
+        return TAG;
+    }
+
+    @Override
+    protected int getPreferenceScreenResId() {
+        return R.xml.accounts_work_dashboard_settings;
+    }
+
+    @Override
+    public int getHelpResource() {
+        return R.string.help_url_user_and_account_dashboard;
+    }
+
+    @Override
+    protected List<AbstractPreferenceController> createPreferenceControllers(Context context) {
+        final String[] authorities = getIntent().getStringArrayExtra(EXTRA_AUTHORITIES);
+        return buildPreferenceControllers(context, this /* parent */, authorities);
+    }
+
+    private static List<AbstractPreferenceController> buildPreferenceControllers(Context context,
+            SettingsPreferenceFragment parent, String[] authorities) {
+        final List<AbstractPreferenceController> controllers = new ArrayList<>();
+
+        final AccountPreferenceController accountPrefController =
+                new AccountPreferenceController(context, parent, authorities,
+                        ProfileSelectFragment.WORK);
+        if (parent != null) {
+            parent.getSettingsLifecycle().addObserver(accountPrefController);
+        }
+        controllers.add(accountPrefController);
+        controllers.add(new AutoSyncDataPreferenceController(context, parent));
+        controllers.add(new AutoSyncWorkDataPreferenceController(context, parent));
+        return controllers;
+    }
+
+    // TODO: b/141601408. After featureFlag settings_work_profile is launched, unmark this
+//    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+//            new BaseSearchIndexProvider(R.xml.accounts_work_dashboard_settings) {
+//
+//                @Override
+//                public List<AbstractPreferenceController> createPreferenceControllers(
+//                        Context context) {
+//                    return buildPreferenceControllers(
+//                            context, null /* parent */, null /* authorities*/);
+//                }
+//            };
+}
diff --git a/src/com/android/settings/bluetooth/BluetoothSliceBuilder.java b/src/com/android/settings/bluetooth/BluetoothSliceBuilder.java
index 18df872..5a4ee1f 100644
--- a/src/com/android/settings/bluetooth/BluetoothSliceBuilder.java
+++ b/src/com/android/settings/bluetooth/BluetoothSliceBuilder.java
@@ -136,6 +136,6 @@
         final Intent intent = new Intent(ACTION_BLUETOOTH_SLICE_CHANGED)
                 .setClass(context, SliceBroadcastReceiver.class);
         return PendingIntent.getBroadcast(context, 0 /* requestCode */, intent,
-                PendingIntent.FLAG_CANCEL_CURRENT);
+                PendingIntent.FLAG_UPDATE_CURRENT);
     }
 }
diff --git a/src/com/android/settings/connecteddevice/AvailableMediaDeviceGroupController.java b/src/com/android/settings/connecteddevice/AvailableMediaDeviceGroupController.java
index cac46b0..d895154 100644
--- a/src/com/android/settings/connecteddevice/AvailableMediaDeviceGroupController.java
+++ b/src/com/android/settings/connecteddevice/AvailableMediaDeviceGroupController.java
@@ -141,11 +141,11 @@
         if (isAudioModeOngoingCall(mContext)) {
             // in phone call
             mPreferenceGroup.
-                    setTitle(mContext.getString(R.string.connected_device_available_call_title));
+                    setTitle(mContext.getString(R.string.connected_device_call_device_title));
         } else {
             // without phone call
             mPreferenceGroup.
-                    setTitle(mContext.getString(R.string.connected_device_available_media_title));
+                    setTitle(mContext.getString(R.string.connected_device_media_device_title));
         }
     }
 }
diff --git a/src/com/android/settings/connecteddevice/usb/UsbDetailsFunctionsController.java b/src/com/android/settings/connecteddevice/usb/UsbDetailsFunctionsController.java
index 9c9400d..31bca12 100644
--- a/src/com/android/settings/connecteddevice/usb/UsbDetailsFunctionsController.java
+++ b/src/com/android/settings/connecteddevice/usb/UsbDetailsFunctionsController.java
@@ -114,16 +114,16 @@
         if (function != previousFunction && !Utils.isMonkeyRunning()) {
             mPreviousFunction = previousFunction;
 
-            if (function == UsbManager.FUNCTION_RNDIS) {
-                //Update the UI in advance to make it looks smooth
-                final RadioButtonPreference prevPref =
-                        (RadioButtonPreference) mProfilesContainer.findPreference(
-                                UsbBackend.usbFunctionsToString(mPreviousFunction));
-                if (prevPref != null) {
-                    prevPref.setChecked(false);
-                    preference.setChecked(true);
-                }
+            //Update the UI in advance to make it looks smooth
+            final RadioButtonPreference prevPref =
+                    (RadioButtonPreference) mProfilesContainer.findPreference(
+                            UsbBackend.usbFunctionsToString(mPreviousFunction));
+            if (prevPref != null) {
+                prevPref.setChecked(false);
+                preference.setChecked(true);
+            }
 
+            if (function == UsbManager.FUNCTION_RNDIS) {
                 // We need to have entitlement check for usb tethering, so use API in
                 // ConnectivityManager.
                 mConnectivityManager.startTethering(TETHERING_USB, true /* showProvisioningUi */,
diff --git a/src/com/android/settings/core/FeatureFlags.java b/src/com/android/settings/core/FeatureFlags.java
index fee9c42..8203b35 100644
--- a/src/com/android/settings/core/FeatureFlags.java
+++ b/src/com/android/settings/core/FeatureFlags.java
@@ -27,4 +27,5 @@
     public static final String NETWORK_INTERNET_V2 = "settings_network_and_internet_v2";
     public static final String WIFI_DETAILS_DATAUSAGE_HEADER =
             "settings_wifi_details_datausage_header";
+    public static final String PERSONAL_WORK_PROFILE = "settings_work_profile";
 }
diff --git a/src/com/android/settings/dashboard/profileselector/ProfileFragmentBridge.java b/src/com/android/settings/dashboard/profileselector/ProfileFragmentBridge.java
new file mode 100644
index 0000000..797782a
--- /dev/null
+++ b/src/com/android/settings/dashboard/profileselector/ProfileFragmentBridge.java
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.dashboard.profileselector;
+
+import android.util.ArrayMap;
+
+import com.android.settings.accounts.AccountDashboardFragment;
+import com.android.settings.accounts.AccountProfileSelectFragment;
+
+import java.util.Map;
+
+/**
+ * A registry to keep track of which page and its own profile selection page.
+ */
+public class ProfileFragmentBridge {
+
+    /**
+     * Map from parent fragment to category key. The parent fragment hosts child with
+     * category_key.
+     */
+    public static final Map<String, String> FRAGMENT_MAP;
+
+    static {
+        FRAGMENT_MAP = new ArrayMap<>();
+        FRAGMENT_MAP.put(AccountDashboardFragment.class.getName(),
+                AccountProfileSelectFragment.class.getName());
+    }
+}
diff --git a/src/com/android/settings/dashboard/profileselector/ProfileSelectFragment.java b/src/com/android/settings/dashboard/profileselector/ProfileSelectFragment.java
new file mode 100644
index 0000000..96eace8
--- /dev/null
+++ b/src/com/android/settings/dashboard/profileselector/ProfileSelectFragment.java
@@ -0,0 +1,116 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.dashboard.profileselector;
+
+import android.annotation.IntDef;
+import android.content.Context;
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentStatePagerAdapter;
+import androidx.viewpager.widget.ViewPager;
+
+import com.android.settings.R;
+import com.android.settings.core.InstrumentedFragment;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+/**
+ * Base fragment class for per profile settings.
+ */
+public abstract class ProfileSelectFragment extends InstrumentedFragment {
+
+    /**
+     * Denotes the profile type.
+     */
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef({PERSONAL, WORK, ALL})
+    public @interface ProfileType {
+    }
+
+    /**
+     * It is personal work profile.
+     */
+    public static final int PERSONAL = 1;
+
+    /**
+     * It is work profile
+     */
+    public static final int WORK = 1 << 1;
+
+    /**
+     * It is personal and work profile
+     */
+    public static final int ALL = PERSONAL | WORK;
+
+    private View mContentView;
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+            Bundle savedInstanceState) {
+        mContentView = inflater.inflate(R.layout.profile_select_tablayout, null /* root */);
+        final ViewPager viewPager = mContentView.findViewById(R.id.view_pager);
+        viewPager.setAdapter(new ViewPagerAdapter(this));
+        return mContentView;
+    }
+
+    @Override
+    public int getMetricsCategory() {
+        return METRICS_CATEGORY_UNKNOWN;
+    }
+
+    /**
+     * Returns an array of {@link Fragment} to display in the
+     * {@link com.google.android.material.tabs.TabLayout}
+     */
+    public abstract Fragment[] getFragments();
+
+    static class ViewPagerAdapter extends FragmentStatePagerAdapter {
+
+        private final Fragment[] mChildFragments;
+        private final Context mContext;
+
+        ViewPagerAdapter(ProfileSelectFragment fragment) {
+            super(fragment.getActivity().getSupportFragmentManager());
+            mContext = fragment.getContext();
+            mChildFragments = fragment.getFragments();
+        }
+
+        @Override
+        public Fragment getItem(int position) {
+            return mChildFragments[position];
+        }
+
+        @Override
+        public int getCount() {
+            return mChildFragments.length;
+        }
+
+        @Override
+        public CharSequence getPageTitle(int position) {
+            if (position == 0) {
+                return mContext.getString(R.string.category_personal);
+            } else {
+                return mContext.getString(R.string.category_work);
+            }
+        }
+    }
+}
diff --git a/src/com/android/settings/datausage/DataSaverBackend.java b/src/com/android/settings/datausage/DataSaverBackend.java
index db92659..92b2ef9 100644
--- a/src/com/android/settings/datausage/DataSaverBackend.java
+++ b/src/com/android/settings/datausage/DataSaverBackend.java
@@ -23,6 +23,7 @@
 import android.net.INetworkPolicyListener;
 import android.net.NetworkPolicyManager;
 import android.os.RemoteException;
+import android.telephony.SubscriptionPlan;
 import android.util.SparseIntArray;
 
 import com.android.settings.overlay.FeatureFactory;
@@ -199,8 +200,11 @@
         }
 
         @Override
-        public void onSubscriptionOverride(int subId, int overrideMask, int overrideValue,
-                long networkTypeMask) {
+        public void onSubscriptionOverride(int subId, int overrideMask, int overrideValue) {
+        }
+
+        @Override
+        public void onSubscriptionPlansChanged(int subId, SubscriptionPlan[] plans) {
         }
     };
 
diff --git a/src/com/android/settings/password/ChooseLockGeneric.java b/src/com/android/settings/password/ChooseLockGeneric.java
index f86292b..a2885d6 100644
--- a/src/com/android/settings/password/ChooseLockGeneric.java
+++ b/src/com/android/settings/password/ChooseLockGeneric.java
@@ -61,6 +61,7 @@
 import androidx.preference.PreferenceScreen;
 
 import com.android.internal.widget.LockPatternUtils;
+import com.android.internal.widget.LockscreenCredential;
 import com.android.settings.EncryptionInterstitial;
 import com.android.settings.EventLogTags;
 import com.android.settings.R;
@@ -151,7 +152,7 @@
         private boolean mPasswordConfirmed = false;
         private boolean mWaitingForConfirmation = false;
         private boolean mForChangeCredRequiredForBoot = false;
-        private byte[] mUserPassword;
+        private LockscreenCredential mUserPassword;
         private LockPatternUtils mLockPatternUtils;
         private FingerprintManager mFingerprintManager;
         private FaceManager mFaceManager;
@@ -207,7 +208,7 @@
                 .getBooleanExtra(CONFIRM_CREDENTIALS, true);
             if (getActivity() instanceof ChooseLockGeneric.InternalActivity) {
                 mPasswordConfirmed = !confirmCredentials;
-                mUserPassword = getActivity().getIntent().getByteArrayExtra(
+                mUserPassword = getActivity().getIntent().getParcelableExtra(
                         ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD);
             }
 
@@ -233,7 +234,7 @@
                 mPasswordConfirmed = savedInstanceState.getBoolean(PASSWORD_CONFIRMED);
                 mWaitingForConfirmation = savedInstanceState.getBoolean(WAITING_FOR_CONFIRMATION);
                 if (mUserPassword == null) {
-                    mUserPassword = savedInstanceState.getByteArray(
+                    mUserPassword = savedInstanceState.getParcelable(
                             ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD);
                 }
             }
@@ -392,11 +393,11 @@
             if (requestCode == CONFIRM_EXISTING_REQUEST && resultCode == Activity.RESULT_OK) {
                 mPasswordConfirmed = true;
                 mUserPassword = data != null
-                    ? data.getByteArrayExtra(ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD)
+                    ? data.getParcelableExtra(ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD)
                     : null;
                 updatePreferencesOrFinish(false /* isRecreatingActivity */);
                 if (mForChangeCredRequiredForBoot) {
-                    if (!(mUserPassword == null || mUserPassword.length == 0)) {
+                    if (mUserPassword != null && !mUserPassword.isNone()) {
                         maybeEnableEncryption(
                                 mLockPatternUtils.getKeyguardStoredPasswordQuality(mUserId), false);
                     } else {
@@ -459,7 +460,7 @@
             outState.putBoolean(PASSWORD_CONFIRMED, mPasswordConfirmed);
             outState.putBoolean(WAITING_FOR_CONFIRMATION, mWaitingForConfirmation);
             if (mUserPassword != null) {
-                outState.putByteArray(ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD, mUserPassword);
+                outState.putParcelable(ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD, mUserPassword);
             }
         }
 
@@ -682,7 +683,7 @@
             setPreferenceSummary(ScreenLockType.MANAGED, R.string.secure_lock_encryption_warning);
         }
 
-        protected Intent getLockManagedPasswordIntent(byte[] password) {
+        protected Intent getLockManagedPasswordIntent(LockscreenCredential password) {
             return mManagedPasswordProvider.createIntent(false, password);
         }
 
@@ -759,7 +760,12 @@
             if (quality == DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) {
                 // Clearing of user biometrics when screen lock is cleared is done at
                 // LockSettingsService.removeBiometricsForUser().
-                mChooseLockSettingsHelper.utils().clearLock(mUserPassword, mUserId);
+                if (mUserPassword != null) {
+                    // No need to call setLockCredential if the user currently doesn't
+                    // have a password
+                    mChooseLockSettingsHelper.utils().setLockCredential(
+                            LockscreenCredential.createNone(), mUserPassword, mUserId);
+                }
                 mChooseLockSettingsHelper.utils().setLockScreenDisabled(disabled, mUserId);
                 getActivity().setResult(Activity.RESULT_OK);
                 finish();
diff --git a/src/com/android/settings/password/ChooseLockGenericController.java b/src/com/android/settings/password/ChooseLockGenericController.java
index 62a0063..1bfdac9 100644
--- a/src/com/android/settings/password/ChooseLockGenericController.java
+++ b/src/com/android/settings/password/ChooseLockGenericController.java
@@ -92,6 +92,7 @@
      */
     public int upgradeQuality(int quality) {
         // Compare specified quality and dpm quality
+        // TODO(b/142781408): convert from quality to credential type once PIN is supported.
         int dpmUpgradedQuality = Math.max(quality, mDpm.getPasswordQuality(null, mUserId));
         return Math.max(dpmUpgradedQuality,
                 PasswordMetrics.complexityLevelToMinQuality(mRequestedMinComplexity));
diff --git a/src/com/android/settings/password/ChooseLockPassword.java b/src/com/android/settings/password/ChooseLockPassword.java
index 820aecb..ff94d8b 100644
--- a/src/com/android/settings/password/ChooseLockPassword.java
+++ b/src/com/android/settings/password/ChooseLockPassword.java
@@ -17,12 +17,20 @@
 package com.android.settings.password;
 
 import static android.app.admin.DevicePolicyManager.PASSWORD_COMPLEXITY_NONE;
-import static android.app.admin.DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC;
-import static android.app.admin.DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC;
-import static android.app.admin.DevicePolicyManager.PASSWORD_QUALITY_COMPLEX;
 import static android.app.admin.DevicePolicyManager.PASSWORD_QUALITY_NUMERIC;
-import static android.app.admin.DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX;
 
+import static com.android.internal.widget.PasswordValidationError.CONTAINS_INVALID_CHARACTERS;
+import static com.android.internal.widget.PasswordValidationError.CONTAINS_SEQUENCE;
+import static com.android.internal.widget.PasswordValidationError.NOT_ENOUGH_DIGITS;
+import static com.android.internal.widget.PasswordValidationError.NOT_ENOUGH_LETTERS;
+import static com.android.internal.widget.PasswordValidationError.NOT_ENOUGH_LOWER_CASE;
+import static com.android.internal.widget.PasswordValidationError.NOT_ENOUGH_NON_DIGITS;
+import static com.android.internal.widget.PasswordValidationError.NOT_ENOUGH_NON_LETTER;
+import static com.android.internal.widget.PasswordValidationError.NOT_ENOUGH_SYMBOLS;
+import static com.android.internal.widget.PasswordValidationError.NOT_ENOUGH_UPPER_CASE;
+import static com.android.internal.widget.PasswordValidationError.RECENTLY_USED;
+import static com.android.internal.widget.PasswordValidationError.TOO_LONG;
+import static com.android.internal.widget.PasswordValidationError.TOO_SHORT;
 import static com.android.settings.password.ChooseLockSettingsHelper.EXTRA_KEY_REQUESTED_MIN_COMPLEXITY;
 
 import android.app.Activity;
@@ -51,7 +59,6 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.inputmethod.EditorInfo;
-import android.widget.LinearLayout;
 import android.widget.TextView;
 import android.widget.TextView.OnEditorActionListener;
 
@@ -63,6 +70,8 @@
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.widget.LockPatternUtils;
 import com.android.internal.widget.LockPatternUtils.RequestThrottledException;
+import com.android.internal.widget.LockscreenCredential;
+import com.android.internal.widget.PasswordValidationError;
 import com.android.internal.widget.TextViewInputDisabler;
 import com.android.settings.EncryptionInterstitial;
 import com.android.settings.R;
@@ -78,7 +87,7 @@
 import com.google.android.setupdesign.GlifLayout;
 
 import java.util.ArrayList;
-import java.util.Arrays;
+import java.util.Collections;
 import java.util.List;
 
 public class ChooseLockPassword extends SettingsActivity {
@@ -124,7 +133,7 @@
             return this;
         }
 
-        public IntentBuilder setPassword(byte[] password) {
+        public IntentBuilder setPassword(LockscreenCredential password) {
             mIntent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD, password);
             return this;
         }
@@ -180,28 +189,23 @@
 
     public static class ChooseLockPasswordFragment extends InstrumentedFragment
             implements OnEditorActionListener, TextWatcher, SaveAndFinishWorker.Listener {
-        private static final String KEY_FIRST_PIN = "first_pin";
+        private static final String KEY_FIRST_PASSWORD = "first_password";
         private static final String KEY_UI_STAGE = "ui_stage";
-        private static final String KEY_CURRENT_PASSWORD = "current_password";
+        private static final String KEY_CURRENT_CREDENTIAL = "current_credential";
         private static final String FRAGMENT_TAG_SAVE_AND_FINISH = "save_and_finish_worker";
 
-        private byte[] mCurrentPassword;
-        private byte[] mChosenPassword;
+        private LockscreenCredential mCurrentCredential;
+        private LockscreenCredential mChosenPassword;
         private boolean mHasChallenge;
         private long mChallenge;
         private ImeAwareEditText mPasswordEntry;
         private TextViewInputDisabler mPasswordEntryInputDisabler;
-        private int mPasswordMinLength = LockPatternUtils.MIN_LOCK_PASSWORD_SIZE;
-        private int mPasswordMaxLength = 16;
-        private int mPasswordMinLetters = 0;
-        private int mPasswordMinUpperCase = 0;
-        private int mPasswordMinLowerCase = 0;
-        private int mPasswordMinSymbols = 0;
-        private int mPasswordMinNumeric = 0;
-        private int mPasswordMinNonLetter = 0;
-        private int mPasswordMinLengthToFulfillAllPolicies = 0;
-        private boolean mPasswordNumSequenceAllowed = true;
-        @PasswordComplexity private int mRequestedMinComplexity = PASSWORD_COMPLEXITY_NONE;
+
+        // Minimum password metrics enforced by admins.
+        private PasswordMetrics mMinMetrics;
+        private List<PasswordValidationError> mValidationErrors;
+
+        @PasswordComplexity private int mMinComplexity = PASSWORD_COMPLEXITY_NONE;
         protected int mUserId;
         private byte[] mPasswordHistoryHashFactor;
 
@@ -215,7 +219,7 @@
         protected boolean mForFingerprint;
         protected boolean mForFace;
 
-        private byte[] mFirstPin;
+        private LockscreenCredential mFirstPassword;
         private RecyclerView mPasswordRestrictionView;
         protected boolean mIsAlphaMode;
         protected FooterButton mSkipOrClearButton;
@@ -227,28 +231,6 @@
         private static final int CONFIRM_EXISTING_REQUEST = 58;
         static final int RESULT_FINISHED = RESULT_FIRST_USER;
 
-        private static final int MIN_LETTER_IN_PASSWORD = 0;
-        private static final int MIN_UPPER_LETTERS_IN_PASSWORD = 1;
-        private static final int MIN_LOWER_LETTERS_IN_PASSWORD = 2;
-        private static final int MIN_SYMBOLS_IN_PASSWORD = 3;
-        private static final int MIN_NUMBER_IN_PASSWORD = 4;
-        private static final int MIN_NON_LETTER_IN_PASSWORD = 5;
-
-        // Error code returned from {@link #validatePassword(byte[])}.
-        static final int NO_ERROR = 0;
-        static final int CONTAIN_INVALID_CHARACTERS = 1 << 0;
-        static final int TOO_SHORT = 1 << 1;
-        static final int TOO_LONG = 1 << 2;
-        static final int CONTAIN_NON_DIGITS = 1 << 3;
-        static final int CONTAIN_SEQUENTIAL_DIGITS = 1 << 4;
-        static final int RECENTLY_USED = 1 << 5;
-        static final int NOT_ENOUGH_LETTER = 1 << 6;
-        static final int NOT_ENOUGH_UPPER_CASE = 1 << 7;
-        static final int NOT_ENOUGH_LOWER_CASE = 1 << 8;
-        static final int NOT_ENOUGH_DIGITS = 1 << 9;
-        static final int NOT_ENOUGH_SYMBOLS = 1 << 10;
-        static final int NOT_ENOUGH_NON_LETTER = 1 << 11;
-
         /**
          * Keep track internally of where the user is in choosing a pattern.
          */
@@ -380,13 +362,13 @@
             mForFingerprint = intent.getBooleanExtra(
                     ChooseLockSettingsHelper.EXTRA_KEY_FOR_FINGERPRINT, false);
             mForFace = intent.getBooleanExtra(ChooseLockSettingsHelper.EXTRA_KEY_FOR_FACE, false);
-            mRequestedMinComplexity = intent.getIntExtra(
+            mMinComplexity = intent.getIntExtra(
                     EXTRA_KEY_REQUESTED_MIN_COMPLEXITY, PASSWORD_COMPLEXITY_NONE);
-            mRequestedQuality = Math.max(
-                    intent.getIntExtra(LockPatternUtils.PASSWORD_TYPE_KEY, mRequestedQuality),
-                    mLockPatternUtils.getRequestedPasswordQuality(mUserId));
 
-            loadDpmPasswordRequirements();
+            mRequestedQuality = intent.getIntExtra(
+                    LockPatternUtils.PASSWORD_TYPE_KEY, PASSWORD_QUALITY_NUMERIC);
+
+            mMinMetrics = mLockPatternUtils.getRequestedPasswordMetrics(mUserId);
             mChooseLockSettingsHelper = new ChooseLockSettingsHelper(getActivity());
 
             if (intent.getBooleanExtra(
@@ -394,13 +376,13 @@
                 SaveAndFinishWorker w = new SaveAndFinishWorker();
                 final boolean required = getActivity().getIntent().getBooleanExtra(
                         EncryptionInterstitial.EXTRA_REQUIRE_PASSWORD, true);
-                byte[] currentBytes = intent.getByteArrayExtra(
+                LockscreenCredential currentCredential = intent.getParcelableExtra(
                         ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD);
 
                 w.setBlocking(true);
                 w.setListener(this);
                 w.start(mChooseLockSettingsHelper.utils(), required, false, 0,
-                        currentBytes, currentBytes, mRequestedQuality, mUserId);
+                        currentCredential, currentCredential, mUserId);
             }
             mTextChangedHandler = new TextChangedHandler();
         }
@@ -482,7 +464,7 @@
             Intent intent = getActivity().getIntent();
             final boolean confirmCredentials = intent.getBooleanExtra(
                     ChooseLockGeneric.CONFIRM_CREDENTIALS, true);
-            mCurrentPassword = intent.getByteArrayExtra(
+            mCurrentCredential = intent.getParcelableExtra(
                     ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD);
             mHasChallenge = intent.getBooleanExtra(
                     ChooseLockSettingsHelper.EXTRA_KEY_HAS_CHALLENGE, false);
@@ -497,15 +479,15 @@
             } else {
 
                 // restore from previous state
-                mFirstPin = savedInstanceState.getByteArray(KEY_FIRST_PIN);
+                mFirstPassword = savedInstanceState.getParcelable(KEY_FIRST_PASSWORD);
                 final String state = savedInstanceState.getString(KEY_UI_STAGE);
                 if (state != null) {
                     mUiStage = Stage.valueOf(state);
                     updateStage(mUiStage);
                 }
 
-                if (mCurrentPassword == null) {
-                    mCurrentPassword = savedInstanceState.getByteArray(KEY_CURRENT_PASSWORD);
+                if (mCurrentCredential == null) {
+                    mCurrentCredential = savedInstanceState.getParcelable(KEY_CURRENT_CREDENTIAL);
                 }
 
                 // Re-attach to the exiting worker if there is one.
@@ -563,8 +545,8 @@
         public void onSaveInstanceState(Bundle outState) {
             super.onSaveInstanceState(outState);
             outState.putString(KEY_UI_STAGE, mUiStage.name());
-            outState.putByteArray(KEY_FIRST_PIN, mFirstPin);
-            outState.putByteArray(KEY_CURRENT_PASSWORD, mCurrentPassword);
+            outState.putParcelable(KEY_FIRST_PASSWORD, mFirstPassword);
+            outState.putParcelable(KEY_CURRENT_CREDENTIAL, mCurrentCredential);
         }
 
         @Override
@@ -577,7 +559,7 @@
                         getActivity().setResult(RESULT_FINISHED);
                         getActivity().finish();
                     } else {
-                        mCurrentPassword = data.getByteArrayExtra(
+                        mCurrentCredential = data.getParcelableExtra(
                                 ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD);
                     }
                     break;
@@ -601,208 +583,23 @@
         }
 
         /**
-         * Read the requirements from {@link DevicePolicyManager} and intent and aggregate them.
-         */
-        private void loadDpmPasswordRequirements() {
-            final int dpmPasswordQuality = mLockPatternUtils.getRequestedPasswordQuality(mUserId);
-            if (dpmPasswordQuality == PASSWORD_QUALITY_NUMERIC_COMPLEX) {
-                mPasswordNumSequenceAllowed = false;
-            }
-            mPasswordMinLength = Math.max(LockPatternUtils.MIN_LOCK_PASSWORD_SIZE,
-                    mLockPatternUtils.getRequestedMinimumPasswordLength(mUserId));
-            mPasswordMaxLength = mLockPatternUtils.getMaximumPasswordLength(mRequestedQuality);
-            mPasswordMinLetters = mLockPatternUtils.getRequestedPasswordMinimumLetters(mUserId);
-            mPasswordMinUpperCase = mLockPatternUtils.getRequestedPasswordMinimumUpperCase(mUserId);
-            mPasswordMinLowerCase = mLockPatternUtils.getRequestedPasswordMinimumLowerCase(mUserId);
-            mPasswordMinNumeric = mLockPatternUtils.getRequestedPasswordMinimumNumeric(mUserId);
-            mPasswordMinSymbols = mLockPatternUtils.getRequestedPasswordMinimumSymbols(mUserId);
-            mPasswordMinNonLetter = mLockPatternUtils.getRequestedPasswordMinimumNonLetter(mUserId);
-
-            // Modify the value based on dpm policy
-            switch (dpmPasswordQuality) {
-                case PASSWORD_QUALITY_ALPHABETIC:
-                    if (mPasswordMinLetters == 0) {
-                        mPasswordMinLetters = 1;
-                    }
-                    break;
-                case PASSWORD_QUALITY_ALPHANUMERIC:
-                    if (mPasswordMinLetters == 0) {
-                        mPasswordMinLetters = 1;
-                    }
-                    if (mPasswordMinNumeric == 0) {
-                        mPasswordMinNumeric = 1;
-                    }
-                    break;
-                case PASSWORD_QUALITY_COMPLEX:
-                    // Reserve all the requirements.
-                    break;
-                default:
-                    mPasswordMinNumeric = 0;
-                    mPasswordMinLetters = 0;
-                    mPasswordMinUpperCase = 0;
-                    mPasswordMinLowerCase = 0;
-                    mPasswordMinSymbols = 0;
-                    mPasswordMinNonLetter = 0;
-            }
-
-            mPasswordMinLengthToFulfillAllPolicies = getMinLengthToFulfillAllPolicies();
-        }
-
-        /**
-         * Merges the dpm requirements and the min complexity requirements.
+         * Validates PIN/Password and returns the validation result and updates mValidationErrors
+         * and mPasswordReused to reflect validation results.
          *
-         * <p>Since there are more than one set of metrics to meet the min complexity requirement,
-         * and we are not hard-coding any one of them to be the requirements the user must fulfil,
-         * we are taking what the user has already entered into account when compiling the list of
-         * requirements from min complexity. Then we merge this list with the DPM requirements, and
-         * present the merged set as validation results to the user on the UI.
-         *
-         * <p>For example, suppose min complexity requires either ALPHABETIC(8+), or
-         * ALPHANUMERIC(6+). If the user has entered "a", the length requirement displayed on the UI
-         * would be 8. Then the user appends "1" to make it "a1". We now know the user is entering
-         * an alphanumeric password so we would update the min complexity required min length to 6.
-         * This might result in a little confusion for the user but the UI does not support showing
-         * multiple sets of requirements / validation results as options to users, this is the best
-         * we can do now.
-         */
-        private void mergeMinComplexityAndDpmRequirements(int userEnteredPasswordQuality) {
-            if (mRequestedMinComplexity == PASSWORD_COMPLEXITY_NONE) {
-                // dpm requirements are dominant if min complexity is none
-                return;
-            }
-
-            // reset dpm requirements
-            loadDpmPasswordRequirements();
-
-            PasswordMetrics minMetrics = PasswordMetrics.getMinimumMetrics(
-                    mRequestedMinComplexity, userEnteredPasswordQuality, mRequestedQuality,
-                    requiresNumeric(), requiresLettersOrSymbols());
-            mPasswordNumSequenceAllowed = mPasswordNumSequenceAllowed
-                    && minMetrics.quality != PASSWORD_QUALITY_NUMERIC_COMPLEX;
-            mPasswordMinLength = Math.max(mPasswordMinLength, minMetrics.length);
-            mPasswordMinLetters = Math.max(mPasswordMinLetters, minMetrics.letters);
-            mPasswordMinUpperCase = Math.max(mPasswordMinUpperCase, minMetrics.upperCase);
-            mPasswordMinLowerCase = Math.max(mPasswordMinLowerCase, minMetrics.lowerCase);
-            mPasswordMinNumeric = Math.max(mPasswordMinNumeric, minMetrics.numeric);
-            mPasswordMinSymbols = Math.max(mPasswordMinSymbols, minMetrics.symbols);
-            mPasswordMinNonLetter = Math.max(mPasswordMinNonLetter, minMetrics.nonLetter);
-
-            if (minMetrics.quality == PASSWORD_QUALITY_ALPHABETIC) {
-                if (!requiresLettersOrSymbols()) {
-                    mPasswordMinLetters = 1;
-                }
-            }
-            if (minMetrics.quality == PASSWORD_QUALITY_ALPHANUMERIC) {
-                if (!requiresLettersOrSymbols()) {
-                    mPasswordMinLetters = 1;
-                }
-                if (!requiresNumeric()) {
-                    mPasswordMinNumeric = 1;
-                }
-            }
-
-            mPasswordMinLengthToFulfillAllPolicies = getMinLengthToFulfillAllPolicies();
-        }
-
-        private boolean requiresLettersOrSymbols() {
-            // This is the condition for the password to be considered ALPHABETIC according to
-            // PasswordMetrics.computeForPassword()
-            return mPasswordMinLetters + mPasswordMinUpperCase
-                    + mPasswordMinLowerCase + mPasswordMinSymbols + mPasswordMinNonLetter > 0;
-        }
-
-        private boolean requiresNumeric() {
-            return mPasswordMinNumeric > 0;
-        }
-
-        /**
-         * Validates PIN/Password and returns the validation result.
-         *
-         * @param password the raw password the user typed in
-         * @return the validation result.
+         * @param credential credential the user typed in.
+         * @return whether password satisfies all the requirements.
          */
         @VisibleForTesting
-        int validatePassword(byte[] password) {
-            int errorCode = NO_ERROR;
-            final PasswordMetrics metrics = PasswordMetrics.computeForPassword(password);
-            mergeMinComplexityAndDpmRequirements(metrics.quality);
-
-            if (password == null || password.length < mPasswordMinLength) {
-                if (mPasswordMinLength > mPasswordMinLengthToFulfillAllPolicies) {
-                    errorCode |= TOO_SHORT;
-                }
-            } else if (password.length > mPasswordMaxLength) {
-                errorCode |= TOO_LONG;
-            } else {
-                // The length requirements are fulfilled.
-                if (!mPasswordNumSequenceAllowed
-                        && !requiresLettersOrSymbols()
-                        && metrics.numeric == password.length) {
-                    // Check for repeated characters or sequences (e.g. '1234', '0000', '2468')
-                    // if DevicePolicyManager or min password complexity requires a complex numeric
-                    // password. There can be two cases in the UI: 1. User chooses to enroll a
-                    // PIN, 2. User chooses to enroll a password but enters a numeric-only pin. We
-                    // should carry out the sequence check in both cases.
-                    //
-                    // Conditions for the !requiresLettersOrSymbols() to be necessary:
-                    // - DPM requires NUMERIC_COMPLEX
-                    // - min complexity not NONE, user picks PASSWORD type so ALPHABETIC or
-                    // ALPHANUMERIC is required
-                    // Imagine user has entered "12345678", if we don't skip the sequence check, the
-                    // validation result would show both "requires a letter" and "sequence not
-                    // allowed", while the only requirement the user needs to know is "requires a
-                    // letter" because once the user has fulfilled the alphabetic requirement, the
-                    // password would not be containing only digits so this check would not be
-                    // performed anyway.
-                    final int sequence = PasswordMetrics.maxLengthSequence(password);
-                    if (sequence > PasswordMetrics.MAX_ALLOWED_SEQUENCE) {
-                        errorCode |= CONTAIN_SEQUENTIAL_DIGITS;
-                    }
-                }
-                // Is the password recently used?
-                if (mLockPatternUtils.checkPasswordHistory(password, getPasswordHistoryHashFactor(),
-                        mUserId)) {
-                    errorCode |= RECENTLY_USED;
-                }
+        boolean validatePassword(LockscreenCredential credential) {
+            final byte[] password = credential.getCredential();
+            mValidationErrors = PasswordMetrics.validatePassword(
+                    mMinMetrics, mMinComplexity, !mIsAlphaMode, password);
+            if (mValidationErrors.isEmpty() &&  mLockPatternUtils.checkPasswordHistory(
+                        password, getPasswordHistoryHashFactor(), mUserId)) {
+                mValidationErrors =
+                        Collections.singletonList(new PasswordValidationError(RECENTLY_USED));
             }
-
-            // Allow non-control Latin-1 characters only.
-            for (int i = 0; i < password.length; i++) {
-                char c = (char) password[i];
-                if (c < 32 || c > 127) {
-                    errorCode |= CONTAIN_INVALID_CHARACTERS;
-                    break;
-                }
-            }
-
-            // Ensure no non-digits if we are requesting numbers. This shouldn't be possible unless
-            // user finds some way to bring up soft keyboard.
-            if (mRequestedQuality == PASSWORD_QUALITY_NUMERIC
-                    || mRequestedQuality == PASSWORD_QUALITY_NUMERIC_COMPLEX) {
-                if (metrics.letters > 0 || metrics.symbols > 0) {
-                    errorCode |= CONTAIN_NON_DIGITS;
-                }
-            }
-
-            if (metrics.letters < mPasswordMinLetters) {
-                errorCode |= NOT_ENOUGH_LETTER;
-            }
-            if (metrics.upperCase < mPasswordMinUpperCase) {
-                errorCode |= NOT_ENOUGH_UPPER_CASE;
-            }
-            if (metrics.lowerCase < mPasswordMinLowerCase) {
-                errorCode |= NOT_ENOUGH_LOWER_CASE;
-            }
-            if (metrics.symbols < mPasswordMinSymbols) {
-                errorCode |= NOT_ENOUGH_SYMBOLS;
-            }
-            if (metrics.numeric < mPasswordMinNumeric) {
-                errorCode |= NOT_ENOUGH_DIGITS;
-            }
-            if (metrics.nonLetter < mPasswordMinNonLetter) {
-                errorCode |= NOT_ENOUGH_NON_LETTER;
-            }
-            return errorCode;
+            return mValidationErrors.isEmpty();
         }
 
         /**
@@ -812,7 +609,8 @@
         private byte[] getPasswordHistoryHashFactor() {
             if (mPasswordHistoryHashFactor == null) {
                 mPasswordHistoryHashFactor = mLockPatternUtils.getPasswordHistoryHashFactor(
-                        mCurrentPassword, mUserId);
+                        mCurrentCredential != null ? mCurrentCredential
+                                : LockscreenCredential.createNone(), mUserId);
             }
             return mPasswordHistoryHashFactor;
         }
@@ -820,20 +618,22 @@
         public void handleNext() {
             if (mSaveAndFinishWorker != null) return;
             // TODO(b/120484642): This is a point of entry for passwords from the UI
-            mChosenPassword = LockPatternUtils.charSequenceToByteArray(mPasswordEntry.getText());
-            if (mChosenPassword == null || mChosenPassword.length == 0) {
+            final Editable passwordText = mPasswordEntry.getText();
+            if (TextUtils.isEmpty(passwordText)) {
                 return;
             }
+            mChosenPassword = mIsAlphaMode ? LockscreenCredential.createPassword(passwordText)
+                    : LockscreenCredential.createPin(passwordText);
             if (mUiStage == Stage.Introduction) {
-                if (validatePassword(mChosenPassword) == NO_ERROR) {
-                    mFirstPin = mChosenPassword;
+                if (validatePassword(mChosenPassword)) {
+                    mFirstPassword = mChosenPassword;
                     mPasswordEntry.setText("");
                     updateStage(Stage.NeedToConfirm);
                 } else {
-                    Arrays.fill(mChosenPassword, (byte) 0);
+                    mChosenPassword.zeroize();
                 }
             } else if (mUiStage == Stage.NeedToConfirm) {
-                if (Arrays.equals(mFirstPin, mChosenPassword)) {
+                if (mChosenPassword.equals(mFirstPassword)) {
                     startSaveAndFinish();
                 } else {
                     CharSequence tmp = mPasswordEntry.getText();
@@ -841,7 +641,7 @@
                         Selection.setSelection((Spannable) tmp, 0, tmp.length());
                     }
                     updateStage(Stage.ConfirmWrong);
-                    Arrays.fill(mChosenPassword, (byte) 0);
+                    mChosenPassword.zeroize();
                 }
             }
         }
@@ -874,79 +674,79 @@
         }
 
         /**
-         * @param errorCode error code returned from {@link #validatePassword(String)}.
+         * @param errorCode error code returned from password validation.
          * @return an array of messages describing the error, important messages come first.
          */
-        String[] convertErrorCodeToMessages(int errorCode) {
+        String[] convertErrorCodeToMessages() {
             List<String> messages = new ArrayList<>();
-            if ((errorCode & CONTAIN_INVALID_CHARACTERS) > 0) {
-                messages.add(getString(R.string.lockpassword_illegal_character));
+            for (PasswordValidationError error : mValidationErrors) {
+                switch (error.errorCode) {
+                    case CONTAINS_INVALID_CHARACTERS:
+                        messages.add(getString(R.string.lockpassword_illegal_character));
+                        break;
+                    case NOT_ENOUGH_UPPER_CASE:
+                        messages.add(getResources().getQuantityString(
+                                R.plurals.lockpassword_password_requires_uppercase,
+                                error.requirement, error.requirement));
+                        break;
+                    case NOT_ENOUGH_LOWER_CASE:
+                        messages.add(getResources().getQuantityString(
+                                R.plurals.lockpassword_password_requires_lowercase,
+                                error.requirement, error.requirement));
+                        break;
+                    case NOT_ENOUGH_LETTERS:
+                        messages.add(getResources().getQuantityString(
+                                R.plurals.lockpassword_password_requires_letters,
+                                error.requirement, error.requirement));
+                        break;
+                    case NOT_ENOUGH_DIGITS:
+                        messages.add(getResources().getQuantityString(
+                                R.plurals.lockpassword_password_requires_numeric,
+                                error.requirement, error.requirement));
+                        break;
+                    case NOT_ENOUGH_SYMBOLS:
+                        messages.add(getResources().getQuantityString(
+                                R.plurals.lockpassword_password_requires_symbols,
+                                error.requirement, error.requirement));
+                        break;
+                    case NOT_ENOUGH_NON_LETTER:
+                        messages.add(getResources().getQuantityString(
+                                R.plurals.lockpassword_password_requires_nonletter,
+                                error.requirement, error.requirement));
+                        break;
+                    case NOT_ENOUGH_NON_DIGITS:
+                        messages.add(getResources().getQuantityString(
+                                R.plurals.lockpassword_password_requires_nonnumerical,
+                                error.requirement, error.requirement));
+                        break;
+                    case TOO_SHORT:
+                        messages.add(getResources().getQuantityString(
+                                mIsAlphaMode
+                                        ? R.plurals.lockpassword_password_too_short
+                                        : R.plurals.lockpassword_pin_too_short,
+                                error.requirement, error.requirement));
+                        break;
+                    case TOO_LONG:
+                        messages.add(getResources().getQuantityString(
+                                mIsAlphaMode
+                                        ? R.plurals.lockpassword_password_too_long
+                                        : R.plurals.lockpassword_pin_too_long,
+                                error.requirement + 1, error.requirement + 1));
+                        break;
+                    case CONTAINS_SEQUENCE:
+                        messages.add(getString(R.string.lockpassword_pin_no_sequential_digits));
+                        break;
+                    case RECENTLY_USED:
+                        messages.add(getString(mIsAlphaMode
+                                ? R.string.lockpassword_password_recently_used
+                                : R.string.lockpassword_pin_recently_used));
+                        break;
+                    default:
+                        Log.wtf(TAG, "unknown error validating password: " + error);
+                }
             }
-            if ((errorCode & CONTAIN_NON_DIGITS) > 0) {
-                messages.add(getString(R.string.lockpassword_pin_contains_non_digits));
-            }
-            if ((errorCode & NOT_ENOUGH_UPPER_CASE) > 0) {
-                messages.add(getResources().getQuantityString(
-                        R.plurals.lockpassword_password_requires_uppercase, mPasswordMinUpperCase,
-                        mPasswordMinUpperCase));
-            }
-            if ((errorCode & NOT_ENOUGH_LOWER_CASE) > 0) {
-                messages.add(getResources().getQuantityString(
-                        R.plurals.lockpassword_password_requires_lowercase, mPasswordMinLowerCase,
-                        mPasswordMinLowerCase));
-            }
-            if ((errorCode & NOT_ENOUGH_LETTER) > 0) {
-                messages.add(getResources().getQuantityString(
-                        R.plurals.lockpassword_password_requires_letters, mPasswordMinLetters,
-                        mPasswordMinLetters));
-            }
-            if ((errorCode & NOT_ENOUGH_DIGITS) > 0) {
-                messages.add(getResources().getQuantityString(
-                        R.plurals.lockpassword_password_requires_numeric, mPasswordMinNumeric,
-                        mPasswordMinNumeric));
-            }
-            if ((errorCode & NOT_ENOUGH_SYMBOLS) > 0) {
-                messages.add(getResources().getQuantityString(
-                        R.plurals.lockpassword_password_requires_symbols, mPasswordMinSymbols,
-                        mPasswordMinSymbols));
-            }
-            if ((errorCode & NOT_ENOUGH_NON_LETTER) > 0) {
-                messages.add(getResources().getQuantityString(
-                        R.plurals.lockpassword_password_requires_nonletter, mPasswordMinNonLetter,
-                        mPasswordMinNonLetter));
-            }
-            if ((errorCode & TOO_SHORT) > 0) {
-                messages.add(getResources().getQuantityString(
-                        mIsAlphaMode
-                                ? R.plurals.lockpassword_password_too_short
-                                : R.plurals.lockpassword_pin_too_short,
-                        mPasswordMinLength,
-                        mPasswordMinLength));
-            }
-            if ((errorCode & TOO_LONG) > 0) {
-                messages.add(getResources().getQuantityString(
-                        mIsAlphaMode
-                                ? R.plurals.lockpassword_password_too_long
-                                : R.plurals.lockpassword_pin_too_long,
-                        mPasswordMaxLength + 1,
-                        mPasswordMaxLength + 1));
-            }
-            if ((errorCode & CONTAIN_SEQUENTIAL_DIGITS) > 0) {
-                messages.add(getString(R.string.lockpassword_pin_no_sequential_digits));
-            }
-            if ((errorCode & RECENTLY_USED) > 0) {
-                messages.add(getString((mIsAlphaMode) ? R.string.lockpassword_password_recently_used
-                        : R.string.lockpassword_pin_recently_used));
-            }
-            return messages.toArray(new String[0]);
-        }
 
-        private int getMinLengthToFulfillAllPolicies() {
-            final int minLengthForLetters = Math.max(mPasswordMinLetters,
-                    mPasswordMinUpperCase + mPasswordMinLowerCase);
-            final int minLengthForNonLetters = Math.max(mPasswordMinNonLetter,
-                    mPasswordMinSymbols + mPasswordMinNumeric);
-            return minLengthForLetters + minLengthForNonLetters;
+            return messages.toArray(new String[0]);
         }
 
         /**
@@ -954,21 +754,24 @@
          */
         protected void updateUi() {
             final boolean canInput = mSaveAndFinishWorker == null;
-            byte[] password = LockPatternUtils.charSequenceToByteArray(mPasswordEntry.getText());
-            final int length = password.length;
+
+            LockscreenCredential password = mIsAlphaMode
+                    ? LockscreenCredential.createPasswordOrNone(mPasswordEntry.getText())
+                    : LockscreenCredential.createPinOrNone(mPasswordEntry.getText());
+            final int length = password.size();
             if (mUiStage == Stage.Introduction) {
                 mPasswordRestrictionView.setVisibility(View.VISIBLE);
-                final int errorCode = validatePassword(password);
-                String[] messages = convertErrorCodeToMessages(errorCode);
+                final boolean passwordCompliant = validatePassword(password);
+                String[] messages = convertErrorCodeToMessages();
                 // Update the fulfillment of requirements.
                 mPasswordRequirementAdapter.setRequirements(messages);
                 // Enable/Disable the next button accordingly.
-                setNextEnabled(errorCode == NO_ERROR);
+                setNextEnabled(passwordCompliant);
             } else {
                 // Hide password requirement view when we are just asking user to confirm the pw.
                 mPasswordRestrictionView.setVisibility(View.GONE);
                 setHeaderText(getString(mUiStage.getHint(mIsAlphaMode, getStageType())));
-                setNextEnabled(canInput && length >= mPasswordMinLength);
+                setNextEnabled(canInput && length >= LockPatternUtils.MIN_LOCK_PASSWORD_SIZE);
                 mSkipOrClearButton.setVisibility(toVisibility(canInput && length > 0));
             }
             int message = mUiStage.getMessage(mIsAlphaMode, getStageType());
@@ -981,7 +784,7 @@
 
             setNextText(mUiStage.buttonText);
             mPasswordEntryInputDisabler.setInputEnabled(canInput);
-            Arrays.fill(password, (byte) 0);
+            password.zeroize();
         }
 
         protected int toVisibility(boolean visibleOrGone) {
@@ -1033,7 +836,7 @@
             final boolean required = getActivity().getIntent().getBooleanExtra(
                     EncryptionInterstitial.EXTRA_REQUIRE_PASSWORD, true);
             mSaveAndFinishWorker.start(mLockPatternUtils, required, mHasChallenge, mChallenge,
-                    mChosenPassword, mCurrentPassword, mRequestedQuality, mUserId);
+                    mChosenPassword, mCurrentCredential, mUserId);
         }
 
         @Override
@@ -1041,13 +844,13 @@
             getActivity().setResult(RESULT_FINISHED, resultData);
 
             if (mChosenPassword != null) {
-                Arrays.fill(mChosenPassword, (byte) 0);
+                mChosenPassword.zeroize();
             }
-            if (mCurrentPassword != null) {
-                Arrays.fill(mCurrentPassword, (byte) 0);
+            if (mCurrentCredential != null) {
+                mCurrentCredential.zeroize();
             }
-            if (mFirstPin != null) {
-                Arrays.fill(mFirstPin, (byte) 0);
+            if (mFirstPassword != null) {
+                mFirstPassword.zeroize();
             }
 
             mPasswordEntry.setText("");
@@ -1088,18 +891,18 @@
 
     public static class SaveAndFinishWorker extends SaveChosenLockWorkerBase {
 
-        private byte[] mChosenPassword;
-        private byte[] mCurrentPassword;
-        private int mRequestedQuality;
+        private LockscreenCredential mChosenPassword;
+        private LockscreenCredential mCurrentCredential;
 
         public void start(LockPatternUtils utils, boolean required,
                 boolean hasChallenge, long challenge,
-                byte[] chosenPassword, byte[] currentPassword, int requestedQuality, int userId) {
+                LockscreenCredential chosenPassword, LockscreenCredential currentCredential,
+                int userId) {
             prepare(utils, required, hasChallenge, challenge, userId);
 
             mChosenPassword = chosenPassword;
-            mCurrentPassword = currentPassword;
-            mRequestedQuality = requestedQuality;
+            mCurrentCredential = currentCredential != null ? currentCredential
+                    : LockscreenCredential.createNone();
             mUserId = userId;
 
             start();
@@ -1107,13 +910,13 @@
 
         @Override
         protected Pair<Boolean, Intent> saveAndVerifyInBackground() {
-            final boolean success = mUtils.saveLockPassword(
-                    mChosenPassword, mCurrentPassword, mRequestedQuality, mUserId);
+            final boolean success = mUtils.setLockCredential(
+                    mChosenPassword, mCurrentCredential, mUserId);
             Intent result = null;
             if (success && mHasChallenge) {
                 byte[] token;
                 try {
-                    token = mUtils.verifyPassword(mChosenPassword, mChallenge, mUserId);
+                    token = mUtils.verifyCredential(mChosenPassword, mChallenge, mUserId);
                 } catch (RequestThrottledException e) {
                     token = null;
                 }
diff --git a/src/com/android/settings/password/ChooseLockPattern.java b/src/com/android/settings/password/ChooseLockPattern.java
index 5de4e3a..b81b0c4 100644
--- a/src/com/android/settings/password/ChooseLockPattern.java
+++ b/src/com/android/settings/password/ChooseLockPattern.java
@@ -36,12 +36,14 @@
 
 import androidx.fragment.app.Fragment;
 
+import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.widget.LinearLayoutWithDefaultTouchRecepient;
 import com.android.internal.widget.LockPatternUtils;
 import com.android.internal.widget.LockPatternUtils.RequestThrottledException;
 import com.android.internal.widget.LockPatternView;
 import com.android.internal.widget.LockPatternView.Cell;
 import com.android.internal.widget.LockPatternView.DisplayMode;
+import com.android.internal.widget.LockscreenCredential;
 import com.android.settings.EncryptionInterstitial;
 import com.android.settings.R;
 import com.android.settings.SettingsActivity;
@@ -116,7 +118,7 @@
             return this;
         }
 
-        public IntentBuilder setPattern(byte[] pattern) {
+        public IntentBuilder setPattern(LockscreenCredential pattern) {
             mIntent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD, pattern);
             return this;
         }
@@ -188,7 +190,7 @@
 
         private static final String FRAGMENT_TAG_SAVE_AND_FINISH = "save_and_finish_worker";
 
-        private byte[] mCurrentPattern;
+        private LockscreenCredential mCurrentCredential;
         private boolean mHasChallenge;
         private long mChallenge;
         protected TextView mTitleText;
@@ -198,7 +200,7 @@
         protected TextView mFooterText;
         protected FooterButton mSkipOrClearButton;
         private FooterButton mNextButton;
-        protected List<LockPatternView.Cell> mChosenPattern = null;
+        @VisibleForTesting protected LockscreenCredential mChosenPattern;
         private ColorStateList mDefaultHeaderColorList;
 
         // ScrollView that contains title and header, only exist in land mode
@@ -225,7 +227,7 @@
                         getActivity().setResult(RESULT_FINISHED);
                         getActivity().finish();
                     } else {
-                        mCurrentPattern = data.getByteArrayExtra(
+                        mCurrentCredential = data.getParcelableExtra(
                                 ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD);
                     }
 
@@ -262,16 +264,19 @@
                     if (mUiStage == Stage.NeedToConfirm || mUiStage == Stage.ConfirmWrong) {
                         if (mChosenPattern == null) throw new IllegalStateException(
                                 "null chosen pattern in stage 'need to confirm");
-                        if (mChosenPattern.equals(pattern)) {
-                            updateStage(Stage.ChoiceConfirmed);
-                        } else {
-                            updateStage(Stage.ConfirmWrong);
+                        try (LockscreenCredential confirmPattern =
+                                LockscreenCredential.createPattern(pattern)) {
+                            if (mChosenPattern.equals(confirmPattern)) {
+                                updateStage(Stage.ChoiceConfirmed);
+                            } else {
+                                updateStage(Stage.ConfirmWrong);
+                            }
                         }
                     } else if (mUiStage == Stage.Introduction || mUiStage == Stage.ChoiceTooShort){
                         if (pattern.size() < LockPatternUtils.MIN_LOCK_PATTERN_SIZE) {
                             updateStage(Stage.ChoiceTooShort);
                         } else {
-                            mChosenPattern = new ArrayList<LockPatternView.Cell>(pattern);
+                            mChosenPattern = LockscreenCredential.createPattern(pattern);
                             updateStage(Stage.FirstChoiceValid);
                         }
                     } else {
@@ -458,12 +463,12 @@
                 SaveAndFinishWorker w = new SaveAndFinishWorker();
                 final boolean required = getActivity().getIntent().getBooleanExtra(
                         EncryptionInterstitial.EXTRA_REQUIRE_PASSWORD, true);
-                byte[] current = intent.getByteArrayExtra(
+                LockscreenCredential current = intent.getParcelableExtra(
                         ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD);
                 w.setBlocking(true);
                 w.setListener(this);
                 w.start(mChooseLockSettingsHelper.utils(), required,
-                        false, 0, LockPatternUtils.byteArrayToPattern(current), current, mUserId);
+                        false, 0, current, current, mUserId);
             }
             mForFingerprint = intent.getBooleanExtra(
                     ChooseLockSettingsHelper.EXTRA_KEY_FOR_FINGERPRINT, false);
@@ -541,8 +546,8 @@
             final boolean confirmCredentials = getActivity().getIntent()
                     .getBooleanExtra(ChooseLockGeneric.CONFIRM_CREDENTIALS, true);
             Intent intent = getActivity().getIntent();
-            mCurrentPattern =
-                    intent.getByteArrayExtra(ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD);
+            mCurrentCredential =
+                    intent.getParcelableExtra(ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD);
             mHasChallenge = intent.getBooleanExtra(
                     ChooseLockSettingsHelper.EXTRA_KEY_HAS_CHALLENGE, false);
             mChallenge = intent.getLongExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE, 0);
@@ -565,13 +570,10 @@
                 }
             } else {
                 // restore from previous state
-                final byte[] pattern = savedInstanceState.getByteArray(KEY_PATTERN_CHOICE);
-                if (pattern != null) {
-                    mChosenPattern = LockPatternUtils.byteArrayToPattern(pattern);
-                }
+                mChosenPattern = savedInstanceState.getParcelable(KEY_PATTERN_CHOICE);
 
-                if (mCurrentPattern == null) {
-                    mCurrentPattern = savedInstanceState.getByteArray(KEY_CURRENT_PATTERN);
+                if (mCurrentCredential == null) {
+                    mCurrentCredential = savedInstanceState.getParcelable(KEY_CURRENT_PATTERN);
                 }
                 updateStage(Stage.values()[savedInstanceState.getInt(KEY_UI_STAGE)]);
 
@@ -606,6 +608,7 @@
 
         public void handleLeftButton() {
             if (mUiStage.leftMode == LeftButtonMode.Retry) {
+                mChosenPattern.zeroize();
                 mChosenPattern = null;
                 mLockPatternView.clearPattern();
                 updateStage(Stage.Introduction);
@@ -667,12 +670,11 @@
 
             outState.putInt(KEY_UI_STAGE, mUiStage.ordinal());
             if (mChosenPattern != null) {
-                outState.putByteArray(KEY_PATTERN_CHOICE,
-                        LockPatternUtils.patternToByteArray(mChosenPattern));
+                outState.putParcelable(KEY_PATTERN_CHOICE, mChosenPattern);
             }
 
-            if (mCurrentPattern != null) {
-                outState.putByteArray(KEY_CURRENT_PATTERN, mCurrentPattern);
+            if (mCurrentCredential != null) {
+                outState.putParcelable(KEY_CURRENT_PATTERN, mCurrentCredential);
             }
         }
 
@@ -812,15 +814,18 @@
             final boolean required = getActivity().getIntent().getBooleanExtra(
                     EncryptionInterstitial.EXTRA_REQUIRE_PASSWORD, true);
             mSaveAndFinishWorker.start(mChooseLockSettingsHelper.utils(), required,
-                    mHasChallenge, mChallenge, mChosenPattern, mCurrentPattern, mUserId);
+                    mHasChallenge, mChallenge, mChosenPattern, mCurrentCredential, mUserId);
         }
 
         @Override
         public void onChosenLockSaveFinished(boolean wasSecureBefore, Intent resultData) {
             getActivity().setResult(RESULT_FINISHED, resultData);
 
-            if (mCurrentPattern != null) {
-                Arrays.fill(mCurrentPattern, (byte) 0);
+            if (mChosenPattern != null) {
+                mChosenPattern.zeroize();
+            }
+            if (mCurrentCredential != null) {
+                mCurrentCredential.zeroize();
             }
 
             if (!wasSecureBefore) {
@@ -835,16 +840,17 @@
 
     public static class SaveAndFinishWorker extends SaveChosenLockWorkerBase {
 
-        private List<LockPatternView.Cell> mChosenPattern;
-        private byte[] mCurrentPattern;
+        private LockscreenCredential mChosenPattern;
+        private LockscreenCredential mCurrentCredential;
         private boolean mLockVirgin;
 
-        public void start(LockPatternUtils utils, boolean credentialRequired,
-                boolean hasChallenge, long challenge,
-                List<LockPatternView.Cell> chosenPattern, byte[] currentPattern, int userId) {
+        public void start(LockPatternUtils utils, boolean credentialRequired, boolean hasChallenge,
+                long challenge, LockscreenCredential chosenPattern,
+                LockscreenCredential currentCredential, int userId) {
             prepare(utils, credentialRequired, hasChallenge, challenge, userId);
 
-            mCurrentPattern = currentPattern;
+            mCurrentCredential = currentCredential != null ? currentCredential
+                    : LockscreenCredential.createNone();
             mChosenPattern = chosenPattern;
             mUserId = userId;
 
@@ -856,12 +862,13 @@
         @Override
         protected Pair<Boolean, Intent> saveAndVerifyInBackground() {
             final int userId = mUserId;
-            final boolean success = mUtils.saveLockPattern(mChosenPattern, mCurrentPattern, userId);
+            final boolean success = mUtils.setLockCredential(mChosenPattern, mCurrentCredential,
+                    userId);
             Intent result = null;
             if (success && mHasChallenge) {
                 byte[] token;
                 try {
-                    token = mUtils.verifyPattern(mChosenPattern, mChallenge, userId);
+                    token = mUtils.verifyCredential(mChosenPattern, mChallenge, userId);
                 } catch (RequestThrottledException e) {
                     token = null;
                 }
diff --git a/src/com/android/settings/password/ConfirmDeviceCredentialActivity.java b/src/com/android/settings/password/ConfirmDeviceCredentialActivity.java
index 1da2a63..bf8c571 100644
--- a/src/com/android/settings/password/ConfirmDeviceCredentialActivity.java
+++ b/src/com/android/settings/password/ConfirmDeviceCredentialActivity.java
@@ -25,6 +25,7 @@
 import android.app.trust.TrustManager;
 import android.content.Context;
 import android.content.Intent;
+import android.content.pm.PackageManager;
 import android.hardware.biometrics.BiometricConstants;
 import android.hardware.biometrics.BiometricManager;
 import android.hardware.biometrics.BiometricPrompt;
@@ -52,6 +53,12 @@
 public class ConfirmDeviceCredentialActivity extends FragmentActivity {
     public static final String TAG = ConfirmDeviceCredentialActivity.class.getSimpleName();
 
+    /**
+     * If the intent is sent from {@link com.android.systemui.keyguard.WorkLockActivity} then
+     * check for device policy management flags.
+     */
+    public static final String EXTRA_FROM_WORK_LOCK_ACTIVITY = "from_work_lock_activity";
+
     // The normal flow that apps go through
     private static final int CREDENTIAL_NORMAL = 1;
     // Unlocks the managed profile when the primary profile is unlocked
@@ -90,6 +97,8 @@
     private TrustManager mTrustManager;
     private ChooseLockSettingsHelper mChooseLockSettingsHelper;
     private Handler mHandler = new Handler(Looper.getMainLooper());
+    private Context mContext;
+    private boolean mFromWorkLockActivity;
 
     private String mTitle;
     private String mDetails;
@@ -149,6 +158,8 @@
         mLockPatternUtils = new LockPatternUtils(this);
 
         Intent intent = getIntent();
+        mContext = this;
+        mFromWorkLockActivity = intent.getBooleanExtra(EXTRA_FROM_WORK_LOCK_ACTIVITY, false);
         mTitle = intent.getStringExtra(KeyguardManager.EXTRA_TITLE);
         mDetails = intent.getStringExtra(KeyguardManager.EXTRA_DESCRIPTION);
         String alternateButton = intent.getStringExtra(
@@ -190,7 +201,7 @@
         } else if (isManagedProfile && isInternalActivity()
                 && !lockPatternUtils.isSeparateProfileChallengeEnabled(mUserId)) {
             mCredentialMode = CREDENTIAL_MANAGED;
-            if (isBiometricAllowed(effectiveUserId, mUserId)) {
+            if (mFromWorkLockActivity && isBiometricAllowed(effectiveUserId, mUserId)) {
                 showBiometricPrompt(bpBundle);
                 launchedBiometric = true;
             } else {
@@ -256,10 +267,36 @@
                 || !mUserManager.isUserUnlocked(mUserId);
     }
 
+    /**
+     * TODO: Pass a list of disabled features to an internal BiometricPrompt API, so we can
+     * potentially show different modalities on multi-auth devices.
+     *
+     * @param effectiveUserId
+     * @return false if their exists one biometric on the device which is not disabled by the
+     * policy manager.
+     */
     private boolean isBiometricDisabledByAdmin(int effectiveUserId) {
         final int disabledFeatures =
-                mDevicePolicyManager.getKeyguardDisabledFeatures(null, effectiveUserId);
-        return (disabledFeatures & DevicePolicyManager.KEYGUARD_DISABLE_BIOMETRICS) != 0;
+            mDevicePolicyManager.getKeyguardDisabledFeatures(null, effectiveUserId);
+
+        final PackageManager pm = mContext.getPackageManager();
+        if (pm.hasSystemFeature(PackageManager.FEATURE_FINGERPRINT)
+            && (disabledFeatures & DevicePolicyManager.KEYGUARD_DISABLE_FINGERPRINT) == 0) {
+            Log.d(TAG,"Fingerprint enabled & allowed by device policy manager");
+            return false;
+        }
+        if (pm.hasSystemFeature(PackageManager.FEATURE_IRIS)
+            && (disabledFeatures & DevicePolicyManager.KEYGUARD_DISABLE_IRIS) == 0) {
+            Log.d(TAG,"Iris enabled & allowed by device policy manager");
+            return false;
+        }
+        if (pm.hasSystemFeature(PackageManager.FEATURE_FACE)
+            && (disabledFeatures & DevicePolicyManager.KEYGUARD_DISABLE_FACE) == 0) {
+            Log.d(TAG,"Face enabled & allowed by device policy manager");
+            return false;
+        }
+
+        return true;
     }
 
     private boolean isBiometricAllowed(int effectiveUserId, int realUserId) {
diff --git a/src/com/android/settings/password/ConfirmLockPassword.java b/src/com/android/settings/password/ConfirmLockPassword.java
index 5c891cd..13d3749 100644
--- a/src/com/android/settings/password/ConfirmLockPassword.java
+++ b/src/com/android/settings/password/ConfirmLockPassword.java
@@ -27,6 +27,7 @@
 import android.os.SystemClock;
 import android.os.UserManager;
 import android.os.storage.StorageManager;
+import android.text.Editable;
 import android.text.InputType;
 import android.text.TextUtils;
 import android.view.KeyEvent;
@@ -44,6 +45,7 @@
 
 import com.android.internal.widget.LockPatternChecker;
 import com.android.internal.widget.LockPatternUtils;
+import com.android.internal.widget.LockscreenCredential;
 import com.android.internal.widget.TextViewInputDisabler;
 import com.android.settings.R;
 import com.android.settings.widget.ImeAwareEditText;
@@ -332,10 +334,13 @@
             }
 
             // TODO(b/120484642): This is a point of entry for passwords from the UI
-            final byte[] pin = LockPatternUtils.charSequenceToByteArray(mPasswordEntry.getText());
-            if (pin == null || pin.length == 0) {
+            final Editable passwordText = mPasswordEntry.getText();
+            if (TextUtils.isEmpty(passwordText)) {
                 return;
             }
+            final LockscreenCredential credential =
+                    mIsAlpha ? LockscreenCredential.createPassword(passwordText)
+                    : LockscreenCredential.createPin(passwordText);
 
             mPasswordEntryInputDisabler.setInputEnabled(false);
             final boolean verifyChallenge = getActivity().getIntent().getBooleanExtra(
@@ -344,11 +349,11 @@
             Intent intent = new Intent();
             if (verifyChallenge)  {
                 if (isInternalActivity()) {
-                    startVerifyPassword(pin, intent);
+                    startVerifyPassword(credential, intent);
                     return;
                 }
             } else {
-                startCheckPassword(pin, intent);
+                startCheckPassword(credential, intent);
                 return;
             }
 
@@ -359,7 +364,7 @@
             return getActivity() instanceof ConfirmLockPassword.InternalActivity;
         }
 
-        private void startVerifyPassword(final byte[] pin, final Intent intent) {
+        private void startVerifyPassword(LockscreenCredential credential, final Intent intent) {
             long challenge = getActivity().getIntent().getLongExtra(
                     ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE, 0);
             final int localEffectiveUserId = mEffectiveUserId;
@@ -383,29 +388,32 @@
                         }
             };
             mPendingLockCheck = (localEffectiveUserId == localUserId)
-                    ? LockPatternChecker.verifyPassword(
-                            mLockPatternUtils, pin, challenge, localUserId, onVerifyCallback)
+                    ? LockPatternChecker.verifyCredential(
+                            mLockPatternUtils, credential, challenge, localUserId, onVerifyCallback)
                     : LockPatternChecker.verifyTiedProfileChallenge(
-                            mLockPatternUtils, pin, false, challenge, localUserId,
+                            mLockPatternUtils, credential, challenge, localUserId,
                             onVerifyCallback);
         }
 
-        private void startCheckPassword(final byte[] pin, final Intent intent) {
+        private void startCheckPassword(final LockscreenCredential credential,
+                final Intent intent) {
             final int localEffectiveUserId = mEffectiveUserId;
-            mPendingLockCheck = LockPatternChecker.checkPassword(
+            mPendingLockCheck = LockPatternChecker.checkCredential(
                     mLockPatternUtils,
-                    pin,
+                    credential,
                     localEffectiveUserId,
                     new LockPatternChecker.OnCheckCallback() {
                         @Override
                         public void onChecked(boolean matched, int timeoutMs) {
                             mPendingLockCheck = null;
                             if (matched && isInternalActivity() && mReturnCredentials) {
+                                // TODO: get rid of EXTRA_KEY_TYPE, since EXTRA_KEY_PASSWORD already
+                                // distinguishes beteween PIN and password.
                                 intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_TYPE,
                                                 mIsAlpha ? StorageManager.CRYPT_TYPE_PASSWORD
                                                          : StorageManager.CRYPT_TYPE_PIN);
                                 intent.putExtra(
-                                        ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD, pin);
+                                        ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD, credential);
                             }
                             mCredentialCheckResultTracker.setResult(matched, intent, timeoutMs,
                                     localEffectiveUserId);
diff --git a/src/com/android/settings/password/ConfirmLockPattern.java b/src/com/android/settings/password/ConfirmLockPattern.java
index b1d8e60..2f7557e 100644
--- a/src/com/android/settings/password/ConfirmLockPattern.java
+++ b/src/com/android/settings/password/ConfirmLockPattern.java
@@ -37,6 +37,7 @@
 import com.android.internal.widget.LockPatternUtils;
 import com.android.internal.widget.LockPatternView;
 import com.android.internal.widget.LockPatternView.Cell;
+import com.android.internal.widget.LockscreenCredential;
 import com.android.settings.R;
 import com.android.settingslib.animation.AppearAnimationCreator;
 import com.android.settingslib.animation.AppearAnimationUtils;
@@ -401,14 +402,16 @@
 
                 final boolean verifyChallenge = getActivity().getIntent().getBooleanExtra(
                         ChooseLockSettingsHelper.EXTRA_KEY_HAS_CHALLENGE, false);
+                final LockscreenCredential credential = LockscreenCredential.createPattern(pattern);
+                //TODO: how to sanitize this?
                 Intent intent = new Intent();
                 if (verifyChallenge) {
                     if (isInternalActivity()) {
-                        startVerifyPattern(pattern, intent);
+                        startVerifyPattern(credential, intent);
                         return;
                     }
                 } else {
-                    startCheckPattern(pattern, intent);
+                    startCheckPattern(credential, intent);
                     return;
                 }
 
@@ -419,7 +422,7 @@
                 return getActivity() instanceof ConfirmLockPattern.InternalActivity;
             }
 
-            private void startVerifyPattern(final List<LockPatternView.Cell> pattern,
+            private void startVerifyPattern(final LockscreenCredential pattern,
                     final Intent intent) {
                 final int localEffectiveUserId = mEffectiveUserId;
                 final int localUserId = mUserId;
@@ -444,15 +447,15 @@
                         }
                     };
                 mPendingLockCheck = (localEffectiveUserId == localUserId)
-                        ? LockPatternChecker.verifyPattern(
+                        ? LockPatternChecker.verifyCredential(
                                 mLockPatternUtils, pattern, challenge, localUserId,
                                 onVerifyCallback)
                         : LockPatternChecker.verifyTiedProfileChallenge(
-                                mLockPatternUtils, LockPatternUtils.patternToByteArray(pattern),
-                                true, challenge, localUserId, onVerifyCallback);
+                                mLockPatternUtils, pattern,
+                                challenge, localUserId, onVerifyCallback);
             }
 
-            private void startCheckPattern(final List<LockPatternView.Cell> pattern,
+            private void startCheckPattern(final LockscreenCredential pattern,
                     final Intent intent) {
                 if (pattern.size() < LockPatternUtils.MIN_PATTERN_REGISTER_FAIL) {
                     // Pattern size is less than the minimum, do not count it as an fail attempt.
@@ -461,7 +464,7 @@
                 }
 
                 final int localEffectiveUserId = mEffectiveUserId;
-                mPendingLockCheck = LockPatternChecker.checkPattern(
+                mPendingLockCheck = LockPatternChecker.checkCredential(
                         mLockPatternUtils,
                         pattern,
                         localEffectiveUserId,
@@ -473,7 +476,7 @@
                                     intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_TYPE,
                                                     StorageManager.CRYPT_TYPE_PATTERN);
                                     intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD,
-                                                    LockPatternUtils.patternToByteArray(pattern));
+                                                    pattern);
                                 }
                                 mCredentialCheckResultTracker.setResult(matched, intent, timeoutMs,
                                         localEffectiveUserId);
diff --git a/src/com/android/settings/password/ManagedLockPasswordProvider.java b/src/com/android/settings/password/ManagedLockPasswordProvider.java
index 5006926..ac8a73a 100644
--- a/src/com/android/settings/password/ManagedLockPasswordProvider.java
+++ b/src/com/android/settings/password/ManagedLockPasswordProvider.java
@@ -19,6 +19,8 @@
 import android.content.Context;
 import android.content.Intent;
 
+import com.android.internal.widget.LockscreenCredential;
+
 /**
  * Helper for handling managed passwords in security settings UI.
  * It provides resources that should be shown in settings UI when lock password quality is set to
@@ -59,7 +61,7 @@
      * @param password Current lock password.
      * @return Intent that should update lock password to a managed password.
      */
-    Intent createIntent(boolean requirePasswordToDecrypt, byte[] password) {
+    Intent createIntent(boolean requirePasswordToDecrypt, LockscreenCredential password) {
         return null;
     }
 }
diff --git a/src/com/android/settings/security/CryptKeeperSettings.java b/src/com/android/settings/security/CryptKeeperSettings.java
index 6555f56..aa47b2b 100644
--- a/src/com/android/settings/security/CryptKeeperSettings.java
+++ b/src/com/android/settings/security/CryptKeeperSettings.java
@@ -37,6 +37,7 @@
 import androidx.appcompat.app.AlertDialog;
 import androidx.preference.Preference;
 
+import com.android.internal.widget.LockscreenCredential;
 import com.android.settings.CryptKeeperConfirm;
 import com.android.settings.R;
 import com.android.settings.SettingsActivity;
@@ -193,9 +194,10 @@
         // confirmation prompt; otherwise, go back to the initial state.
         if (resultCode == Activity.RESULT_OK && data != null) {
             int type = data.getIntExtra(ChooseLockSettingsHelper.EXTRA_KEY_TYPE, -1);
-            byte[] password = data.getByteArrayExtra(ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD);
-            if (!(password == null || password.length == 0)) {
-                showFinalConfirmation(type, password);
+            LockscreenCredential password = data.getParcelableExtra(
+                    ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD);
+            if (password != null && !password.isNone()) {
+                showFinalConfirmation(type, password.getCredential());
             }
         }
     }
diff --git a/src/com/android/settings/security/LockUnificationPreferenceController.java b/src/com/android/settings/security/LockUnificationPreferenceController.java
index bf374de..4bac601 100644
--- a/src/com/android/settings/security/LockUnificationPreferenceController.java
+++ b/src/com/android/settings/security/LockUnificationPreferenceController.java
@@ -32,6 +32,7 @@
 import androidx.preference.PreferenceScreen;
 
 import com.android.internal.widget.LockPatternUtils;
+import com.android.internal.widget.LockscreenCredential;
 import com.android.settings.R;
 import com.android.settings.Utils;
 import com.android.settings.core.PreferenceControllerMixin;
@@ -70,8 +71,8 @@
     private RestrictedSwitchPreference mUnifyProfile;
 
 
-    private byte[] mCurrentDevicePassword;
-    private byte[] mCurrentProfilePassword;
+    private LockscreenCredential mCurrentDevicePassword;
+    private LockscreenCredential mCurrentProfilePassword;
     private boolean mKeepDeviceLock;
 
     @Override
@@ -89,6 +90,8 @@
                 .getSecurityFeatureProvider()
                 .getLockPatternUtils(context);
         mProfileUserId = Utils.getManagedProfileId(mUm, MY_USER_ID);
+        mCurrentDevicePassword = LockscreenCredential.createNone();
+        mCurrentProfilePassword = LockscreenCredential.createNone();
     }
 
     @Override
@@ -151,13 +154,13 @@
         } else if (requestCode == UNIFY_LOCK_CONFIRM_DEVICE_REQUEST
                 && resultCode == Activity.RESULT_OK) {
             mCurrentDevicePassword =
-                    data.getByteArrayExtra(ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD);
+                    data.getParcelableExtra(ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD);
             launchConfirmProfileLock();
             return true;
         } else if (requestCode == UNIFY_LOCK_CONFIRM_PROFILE_REQUEST
                 && resultCode == Activity.RESULT_OK) {
             mCurrentProfilePassword =
-                    data.getByteArrayExtra(ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD);
+                    data.getParcelableExtra(ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD);
             unifyLocks();
             return true;
         }
@@ -221,17 +224,8 @@
     }
 
     private void unifyKeepingWorkLock() {
-        final int profileQuality =
-                mLockPatternUtils.getKeyguardStoredPasswordQuality(mProfileUserId);
-        // PASSWORD_QUALITY_SOMETHING means pattern, everything above means PIN/password.
-        if (profileQuality == DevicePolicyManager.PASSWORD_QUALITY_SOMETHING) {
-            mLockPatternUtils.saveLockPattern(
-                    LockPatternUtils.byteArrayToPattern(mCurrentProfilePassword),
-                    mCurrentDevicePassword, MY_USER_ID);
-        } else {
-            mLockPatternUtils.saveLockPassword(
-                    mCurrentProfilePassword, mCurrentDevicePassword, profileQuality, MY_USER_ID);
-        }
+        mLockPatternUtils.setLockCredential(
+                mCurrentProfilePassword, mCurrentDevicePassword, MY_USER_ID);
         mLockPatternUtils.setSeparateProfileChallengeEnabled(mProfileUserId, false,
                 mCurrentProfilePassword);
         final boolean profilePatternVisibility =
diff --git a/src/com/android/settings/slices/CustomSliceable.java b/src/com/android/settings/slices/CustomSliceable.java
index 9566be1..92c604e 100644
--- a/src/com/android/settings/slices/CustomSliceable.java
+++ b/src/com/android/settings/slices/CustomSliceable.java
@@ -95,7 +95,7 @@
                 .setData(getUri())
                 .setClass(context, SliceBroadcastReceiver.class);
         return PendingIntent.getBroadcast(context, 0 /* requestCode */, intent,
-                PendingIntent.FLAG_CANCEL_CURRENT);
+                PendingIntent.FLAG_UPDATE_CURRENT);
     }
 
     @Override
diff --git a/src/com/android/settings/slices/SlicePreference.java b/src/com/android/settings/slices/SlicePreference.java
index a2a7fe1..fe5ed60 100644
--- a/src/com/android/settings/slices/SlicePreference.java
+++ b/src/com/android/settings/slices/SlicePreference.java
@@ -46,6 +46,7 @@
         mSliceView = findViewById(R.id.slice_view);
         mSliceView.setShowTitleItems(true);
         mSliceView.setScrollable(false);
+        mSliceView.setVisibility(View.GONE);
     }
 
     public void onSliceUpdated(Slice slice) {
diff --git a/src/com/android/settings/slices/SlicePreferenceController.java b/src/com/android/settings/slices/SlicePreferenceController.java
index 8f3d0fb..df28304 100644
--- a/src/com/android/settings/slices/SlicePreferenceController.java
+++ b/src/com/android/settings/slices/SlicePreferenceController.java
@@ -65,7 +65,6 @@
         mUri = uri;
         mLiveData = SliceLiveData.fromUri(mContext, mUri, (int type, Throwable source) -> {
             Log.w(TAG, "Slice may be null. uri = " + uri + ", error = " + type);
-            onChanged(null);
         });
 
         //TODO(b/120803703): figure out why we need to remove observer first
diff --git a/src/com/android/settings/widget/SwitchBar.java b/src/com/android/settings/widget/SwitchBar.java
index 0dd59e6..de0d98b 100644
--- a/src/com/android/settings/widget/SwitchBar.java
+++ b/src/com/android/settings/widget/SwitchBar.java
@@ -77,14 +77,12 @@
     private TextView mTextView;
     private String mLabel;
     private String mSummary;
+    private String mOnText;
+    private String mOffText;
     @ColorInt
     private int mBackgroundColor;
     @ColorInt
     private int mBackgroundActivatedColor;
-    @StringRes
-    private int mOnTextId;
-    @StringRes
-    private int mOffTextId;
 
     private boolean mLoggingIntialized;
     private boolean mDisabledByAdmin;
@@ -178,14 +176,20 @@
     }
 
     public void setTextViewLabelAndBackground(boolean isChecked) {
-        mLabel = getResources().getString(isChecked ? mOnTextId : mOffTextId);
+        mLabel = isChecked ? mOnText : mOffText;
         setBackgroundColor(isChecked ? mBackgroundActivatedColor : mBackgroundColor);
         updateText();
     }
 
-    public void setSwitchBarText(int onText, int offText) {
-        mOnTextId = onText;
-        mOffTextId = offText;
+    public void setSwitchBarText(int onTextId, int offTextId) {
+        mOnText = getResources().getString(onTextId);
+        mOffText = getResources().getString(offTextId);
+        setTextViewLabelAndBackground(isChecked());
+    }
+
+    public void setSwitchBarText(String onText, String offText) {
+        mOnText = onText;
+        mOffText = offText;
         setTextViewLabelAndBackground(isChecked());
     }
 
diff --git a/src/com/android/settings/wifi/savedaccesspoints/SavedAccessPointsPreferenceController.java b/src/com/android/settings/wifi/savedaccesspoints/SavedAccessPointsPreferenceController.java
index 81803dd..2315c9b 100644
--- a/src/com/android/settings/wifi/savedaccesspoints/SavedAccessPointsPreferenceController.java
+++ b/src/com/android/settings/wifi/savedaccesspoints/SavedAccessPointsPreferenceController.java
@@ -30,7 +30,6 @@
 import com.android.settingslib.wifi.AccessPointPreference.UserBadgeCache;
 import com.android.settingslib.wifi.WifiSavedConfigUtils;
 
-import java.util.Collections;
 import java.util.List;
 import java.util.stream.Collectors;
 
@@ -40,17 +39,14 @@
 public class SavedAccessPointsPreferenceController extends BasePreferenceController implements
         Preference.OnPreferenceClickListener {
 
-    private static final String TAG = "SavedApPrefCtrl";
-
-    private final WifiManager mWifiManager;
+    protected final WifiManager mWifiManager;
     private final UserBadgeCache mUserBadgeCache;
     private PreferenceGroup mPreferenceGroup;
     private SavedAccessPointsWifiSettings mHost;
     @VisibleForTesting
     List<AccessPoint> mAccessPoints;
 
-    public SavedAccessPointsPreferenceController(Context context,
-            String preferenceKey) {
+    public SavedAccessPointsPreferenceController(Context context, String preferenceKey) {
         super(context, preferenceKey);
         mUserBadgeCache = new AccessPointPreference.UserBadgeCache(context.getPackageManager());
         mWifiManager = context.getSystemService(WifiManager.class);
@@ -84,7 +80,7 @@
         return false;
     }
 
-    private void refreshSavedAccessPoints() {
+    protected void refreshSavedAccessPoints() {
         mAccessPoints = WifiSavedConfigUtils.getAllConfigs(mContext, mWifiManager).stream()
                 .filter(accessPoint -> !accessPoint.isPasspointConfig())
                 .sorted(SavedNetworkComparator.INSTANCE)
diff --git a/src/com/android/settings/wifi/savedaccesspoints/SubscribedAccessPointsPreferenceController.java b/src/com/android/settings/wifi/savedaccesspoints/SubscribedAccessPointsPreferenceController.java
index 4d7dc60..b86113e 100644
--- a/src/com/android/settings/wifi/savedaccesspoints/SubscribedAccessPointsPreferenceController.java
+++ b/src/com/android/settings/wifi/savedaccesspoints/SubscribedAccessPointsPreferenceController.java
@@ -17,92 +17,26 @@
 package com.android.settings.wifi.savedaccesspoints;
 
 import android.content.Context;
-import android.net.wifi.WifiManager;
 
-import androidx.annotation.VisibleForTesting;
-import androidx.preference.Preference;
-import androidx.preference.PreferenceGroup;
-import androidx.preference.PreferenceScreen;
-
-import com.android.settings.core.BasePreferenceController;
-import com.android.settingslib.wifi.AccessPoint;
-import com.android.settingslib.wifi.AccessPointPreference;
-import com.android.settingslib.wifi.AccessPointPreference.UserBadgeCache;
 import com.android.settingslib.wifi.WifiSavedConfigUtils;
 
-import java.util.Collections;
-import java.util.List;
 import java.util.stream.Collectors;
 
 /**
  * Controller that manages a PreferenceGroup, which contains a list of subscribed access points.
  */
-public class SubscribedAccessPointsPreferenceController extends BasePreferenceController implements
-        Preference.OnPreferenceClickListener {
+public class SubscribedAccessPointsPreferenceController extends
+        SavedAccessPointsPreferenceController {
 
-    private static final String TAG = "SubscribedApPrefCtrl";
-
-    private final WifiManager mWifiManager;
-    private final UserBadgeCache mUserBadgeCache;
-    private PreferenceGroup mPreferenceGroup;
-    private SavedAccessPointsWifiSettings mHost;
-    @VisibleForTesting
-    List<AccessPoint> mAccessPoints;
-
-    public SubscribedAccessPointsPreferenceController(Context context,
-            String preferenceKey) {
+    public SubscribedAccessPointsPreferenceController(Context context, String preferenceKey) {
         super(context, preferenceKey);
-        mUserBadgeCache = new AccessPointPreference.UserBadgeCache(context.getPackageManager());
-        mWifiManager = context.getSystemService(WifiManager.class);
-    }
-
-    public SubscribedAccessPointsPreferenceController setHost(SavedAccessPointsWifiSettings host) {
-        mHost = host;
-        return this;
     }
 
     @Override
-    public int getAvailabilityStatus() {
-        return mAccessPoints.size() > 0 ? AVAILABLE : CONDITIONALLY_UNAVAILABLE;
-    }
-
-    @Override
-    public void displayPreference(PreferenceScreen screen) {
-        mPreferenceGroup = screen.findPreference(getPreferenceKey());
-        refreshSubscribedAccessPoints();
-        updatePreference();
-        super.displayPreference(screen);
-    }
-
-    @Override
-    public boolean onPreferenceClick(Preference preference) {
-        if (mHost != null) {
-            final Preference preferenceInGroup =
-                    mPreferenceGroup.findPreference(preference.getKey());
-            mHost.showWifiPage((AccessPointPreference) preferenceInGroup);
-        }
-        return false;
-    }
-
-    private void refreshSubscribedAccessPoints() {
+    protected void refreshSavedAccessPoints() {
         mAccessPoints = WifiSavedConfigUtils.getAllConfigs(mContext, mWifiManager).stream()
                 .filter(accessPoint -> accessPoint.isPasspointConfig())
                 .sorted(SavedNetworkComparator.INSTANCE)
                 .collect(Collectors.toList());
     }
-
-    private void updatePreference() {
-        mPreferenceGroup.removeAll();
-        for (AccessPoint accessPoint : mAccessPoints) {
-            final String key = accessPoint.getKey();
-
-            final AccessPointPreference preference = new AccessPointPreference(accessPoint,
-                    mContext, mUserBadgeCache, true /* forSavedNetworks */);
-            preference.setKey(key);
-            preference.setIcon(null);
-            preference.setOnPreferenceClickListener(this);
-
-            mPreferenceGroup.addPreference(preference);
-        }
-    }
 }
diff --git a/tests/robotests/src/com/android/settings/accounts/AccountPreferenceControllerTest.java b/tests/robotests/src/com/android/settings/accounts/AccountPreferenceControllerTest.java
index 65f485e..bf64190 100644
--- a/tests/robotests/src/com/android/settings/accounts/AccountPreferenceControllerTest.java
+++ b/tests/robotests/src/com/android/settings/accounts/AccountPreferenceControllerTest.java
@@ -46,6 +46,7 @@
 import com.android.settings.AccessiblePreferenceCategory;
 import com.android.settings.R;
 import com.android.settings.SettingsPreferenceFragment;
+import com.android.settings.dashboard.profileselector.ProfileSelectFragment;
 import com.android.settings.testutils.shadow.ShadowAccountManager;
 import com.android.settings.testutils.shadow.ShadowContentResolver;
 import com.android.settingslib.search.SearchIndexableRaw;
@@ -96,7 +97,8 @@
         when(mAccountManager.getAuthenticatorTypesAsUser(anyInt()))
             .thenReturn(new AuthenticatorDescription[0]);
         when(mAccountManager.getAccountsAsUser(anyInt())).thenReturn(new Account[0]);
-        mController = new AccountPreferenceController(mContext, mFragment, null, mAccountHelper);
+        mController = new AccountPreferenceController(mContext, mFragment, null, mAccountHelper,
+                ProfileSelectFragment.ALL);
     }
 
     @After
diff --git a/tests/robotests/src/com/android/settings/connecteddevice/AvailableMediaDeviceGroupControllerTest.java b/tests/robotests/src/com/android/settings/connecteddevice/AvailableMediaDeviceGroupControllerTest.java
index c4b5901..ad630ff 100644
--- a/tests/robotests/src/com/android/settings/connecteddevice/AvailableMediaDeviceGroupControllerTest.java
+++ b/tests/robotests/src/com/android/settings/connecteddevice/AvailableMediaDeviceGroupControllerTest.java
@@ -193,7 +193,7 @@
         mAvailableMediaDeviceGroupController.onAudioModeChanged();
 
         assertThat(mPreferenceGroup.getTitle()).isEqualTo(
-                mContext.getText(R.string.connected_device_available_call_title));
+                mContext.getText(R.string.connected_device_call_device_title));
     }
 
     @Test
@@ -202,7 +202,7 @@
         mAvailableMediaDeviceGroupController.onAudioModeChanged();
 
         assertThat(mPreferenceGroup.getTitle()).isEqualTo(
-                mContext.getText(R.string.connected_device_available_media_title));
+                mContext.getText(R.string.connected_device_media_device_title));
     }
 
     @Test
diff --git a/tests/robotests/src/com/android/settings/password/ChooseLockPasswordTest.java b/tests/robotests/src/com/android/settings/password/ChooseLockPasswordTest.java
index 73707a6..4bbf51d 100644
--- a/tests/robotests/src/com/android/settings/password/ChooseLockPasswordTest.java
+++ b/tests/robotests/src/com/android/settings/password/ChooseLockPasswordTest.java
@@ -41,6 +41,7 @@
 import android.content.Intent;
 import android.os.UserHandle;
 
+import com.android.internal.widget.LockscreenCredential;
 import com.android.settings.R;
 import com.android.settings.password.ChooseLockPassword.ChooseLockPasswordFragment;
 import com.android.settings.password.ChooseLockPassword.IntentBuilder;
@@ -76,7 +77,6 @@
         SettingsShadowResources.overrideResource(
                 com.android.internal.R.string.config_headlineFontFamily, "");
         mShadowDpm = ShadowDevicePolicyManager.getShadow();
-        mShadowDpm.setPasswordMaximumLength(16);
     }
 
     @After
@@ -87,7 +87,7 @@
     @Test
     public void intentBuilder_setPassword_shouldAddExtras() {
         Intent intent = new IntentBuilder(application)
-                .setPassword("password".getBytes())
+                .setPassword(LockscreenCredential.createPassword("password"))
                 .setPasswordQuality(DevicePolicyManager.PASSWORD_QUALITY_NUMERIC)
                 .setUserId(123)
                 .build();
@@ -95,9 +95,10 @@
         assertThat(intent.getBooleanExtra(ChooseLockSettingsHelper.EXTRA_KEY_HAS_CHALLENGE, true))
                 .named("EXTRA_KEY_HAS_CHALLENGE")
                 .isFalse();
-        assertThat(intent.getByteArrayExtra(ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD))
+        assertThat((LockscreenCredential) intent.getParcelableExtra(
+                ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD))
                 .named("EXTRA_KEY_PASSWORD")
-                .isEqualTo("password".getBytes());
+                .isEqualTo(LockscreenCredential.createPassword("password"));
         assertThat(intent.getIntExtra(PASSWORD_TYPE_KEY, 0))
                 .named("PASSWORD_TYPE_KEY")
                 .isEqualTo(DevicePolicyManager.PASSWORD_QUALITY_NUMERIC);
@@ -154,8 +155,8 @@
         assertPasswordValidationResult(
                 /* minComplexity= */ PASSWORD_COMPLEXITY_NONE,
                 /* passwordType= */ PASSWORD_QUALITY_ALPHABETIC,
-                /* userEnteredPassword= */ "",
-                "Must contain at least 1 letter",
+                /* userEnteredPassword= */ LockscreenCredential.createNone(),
+                "Must contain at least 1 non-numerical character",
                 "Must be at least 10 characters");
     }
 
@@ -166,7 +167,7 @@
         assertPasswordValidationResult(
                 /* minComplexity= */ PASSWORD_COMPLEXITY_HIGH,
                 /* passwordType= */ PASSWORD_QUALITY_NUMERIC,
-                /* userEnteredPassword= */ "",
+                /* userEnteredPassword= */ LockscreenCredential.createNone(),
                 "PIN must be at least 8 digits");
     }
 
@@ -177,8 +178,8 @@
         assertPasswordValidationResult(
                 /* minComplexity= */ PASSWORD_COMPLEXITY_MEDIUM,
                 /* passwordType= */ PASSWORD_QUALITY_ALPHABETIC,
-                /* userEnteredPassword= */ "",
-                "Must contain at least 1 letter",
+                /* userEnteredPassword= */ LockscreenCredential.createNone(),
+                "Must contain at least 1 non-numerical character",
                 "Must be at least 4 characters");
     }
 
@@ -190,8 +191,8 @@
         assertPasswordValidationResult(
                 /* minComplexity= */ PASSWORD_COMPLEXITY_LOW,
                 /* passwordType= */ PASSWORD_QUALITY_ALPHABETIC,
-                /* userEnteredPassword= */ "",
-                "Must contain at least 1 letter",
+                /* userEnteredPassword= */ LockscreenCredential.createNone(),
+                "Must contain at least 1 non-numerical character",
                 "Must contain at least 1 numerical digit",
                 "Must be at least 9 characters");
     }
@@ -204,7 +205,7 @@
         assertPasswordValidationResult(
                 /* minComplexity= */ PASSWORD_COMPLEXITY_MEDIUM,
                 /* passwordType= */ PASSWORD_QUALITY_NUMERIC,
-                /* userEnteredPassword= */ "",
+                /* userEnteredPassword= */ LockscreenCredential.createNone(),
                 "PIN must be at least 11 digits");
     }
 
@@ -216,9 +217,11 @@
         assertPasswordValidationResult(
                 /* minComplexity= */ PASSWORD_COMPLEXITY_HIGH,
                 /* passwordType= */ PASSWORD_QUALITY_ALPHABETIC,
-                /* userEnteredPassword= */ "",
+                /* userEnteredPassword= */ LockscreenCredential.createNone(),
                 "Must contain at least 2 special symbols",
-                "Must be at least 6 characters");
+                "Must be at least 6 characters",
+                "Must contain at least 1 letter",
+                "Must contain at least 1 numerical digit");
     }
 
     @Test
@@ -229,7 +232,7 @@
         assertPasswordValidationResult(
                 /* minComplexity= */ PASSWORD_COMPLEXITY_NONE,
                 /* passwordType= */ PASSWORD_QUALITY_NUMERIC,
-                /* userEnteredPassword= */ "12345678",
+                /* userEnteredPassword= */ LockscreenCredential.createPassword("12345678"),
                 "Ascending, descending, or repeated sequence of digits isn't allowed");
     }
 
@@ -241,7 +244,7 @@
         assertPasswordValidationResult(
                 /* minComplexity= */ PASSWORD_COMPLEXITY_NONE,
                 /* passwordType= */ PASSWORD_QUALITY_ALPHABETIC,
-                /* userEnteredPassword= */ "12345678",
+                /* userEnteredPassword= */ LockscreenCredential.createPassword("12345678"),
                 "Ascending, descending, or repeated sequence of digits isn't allowed");
     }
 
@@ -253,7 +256,7 @@
         assertPasswordValidationResult(
                 /* minComplexity= */ PASSWORD_COMPLEXITY_HIGH,
                 /* passwordType= */ PASSWORD_QUALITY_NUMERIC,
-                /* userEnteredPassword= */ "12345678",
+                /* userEnteredPassword= */ LockscreenCredential.createPassword("12345678"),
                 "Ascending, descending, or repeated sequence of digits isn't allowed");
     }
 
@@ -265,7 +268,7 @@
         assertPasswordValidationResult(
                 /* minComplexity= */ PASSWORD_COMPLEXITY_HIGH,
                 /* passwordType= */ PASSWORD_QUALITY_NUMERIC,
-                /* userEnteredPassword= */ "12345678",
+                /* userEnteredPassword= */ LockscreenCredential.createPassword("12345678"),
                 "Ascending, descending, or repeated sequence of digits isn't allowed");
     }
 
@@ -277,8 +280,8 @@
         assertPasswordValidationResult(
                 /* minComplexity= */ PASSWORD_COMPLEXITY_LOW,
                 /* passwordType= */ PASSWORD_QUALITY_ALPHABETIC,
-                /* userEnteredPassword= */ "12345678",
-                "Must contain at least 1 letter");
+                /* userEnteredPassword= */ LockscreenCredential.createPassword("12345678"),
+                "Ascending, descending, or repeated sequence of digits isn't allowed");
     }
 
     @Test
@@ -288,9 +291,9 @@
         assertPasswordValidationResult(
                 /* minComplexity= */ PASSWORD_COMPLEXITY_HIGH,
                 /* passwordType= */ PASSWORD_QUALITY_ALPHABETIC,
-                /* userEnteredPassword= */ "",
-                "Must contain at least 1 letter",
-                "Must be at least 6 characters");
+                /* userEnteredPassword= */ LockscreenCredential.createNone(),
+                "Must be at least 6 characters",
+                "Must contain at least 1 non-numerical character");
     }
 
     @Test
@@ -300,9 +303,9 @@
         assertPasswordValidationResult(
                 /* minComplexity= */ PASSWORD_COMPLEXITY_HIGH,
                 /* passwordType= */ PASSWORD_QUALITY_ALPHABETIC,
-                /* userEnteredPassword= */ "1",
-                "Must contain at least 1 letter",
-                "Must be at least 6 characters");
+                /* userEnteredPassword= */ LockscreenCredential.createPassword("1"),
+                "Must be at least 6 characters",
+                "Must contain at least 1 non-numerical character");
     }
 
     @Test
@@ -312,7 +315,7 @@
         assertPasswordValidationResult(
                 /* minComplexity= */ PASSWORD_COMPLEXITY_HIGH,
                 /* passwordType= */ PASSWORD_QUALITY_ALPHABETIC,
-                /* userEnteredPassword= */ "b",
+                /* userEnteredPassword= */ LockscreenCredential.createPassword("b"),
                 "Must be at least 6 characters");
     }
 
@@ -323,11 +326,33 @@
         assertPasswordValidationResult(
                 /* minComplexity= */ PASSWORD_COMPLEXITY_HIGH,
                 /* passwordType= */ PASSWORD_QUALITY_ALPHABETIC,
-                /* userEnteredPassword= */ "b1",
+                /* userEnteredPassword= */ LockscreenCredential.createPassword("b1"),
                 "Must be at least 6 characters");
     }
 
     @Test
+    public void processAndValidatePasswordRequirements_defaultPinMinimumLength() {
+        mShadowDpm.setPasswordQuality(PASSWORD_QUALITY_UNSPECIFIED);
+
+        assertPasswordValidationResult(
+                /* minComplexity= */ PASSWORD_COMPLEXITY_NONE,
+                /* passwordType= */ PASSWORD_QUALITY_NUMERIC,
+                /* userEnteredPassword= */ LockscreenCredential.createPassword("11"),
+                "PIN must be at least 4 digits");
+    }
+
+    @Test
+    public void processAndValidatePasswordRequirements_maximumLength() {
+        mShadowDpm.setPasswordQuality(PASSWORD_QUALITY_UNSPECIFIED);
+
+        assertPasswordValidationResult(
+                /* minComplexity= */ PASSWORD_COMPLEXITY_NONE,
+                /* passwordType= */ PASSWORD_QUALITY_ALPHABETIC,
+                LockscreenCredential.createPassword("01234567890123456789"),
+                "Must be fewer than 17 characters");
+    }
+
+    @Test
     public void assertThat_chooseLockIconChanged_WhenFingerprintExtraSet() {
         ShadowDrawable drawable = setActivityAndGetIconDrawable(true);
         assertThat(drawable.getCreatedFromResId()).isEqualTo(R.drawable.ic_fingerprint_header);
@@ -359,18 +384,16 @@
     }
 
     private void assertPasswordValidationResult(@PasswordComplexity int minComplexity,
-            int passwordType, String userEnteredPassword, String... expectedValidationResult) {
+            int passwordType, LockscreenCredential userEnteredPassword,
+            String... expectedValidationResult) {
         Intent intent = new Intent();
         intent.putExtra(CONFIRM_CREDENTIALS, false);
         intent.putExtra(PASSWORD_TYPE_KEY, passwordType);
         intent.putExtra(EXTRA_KEY_REQUESTED_MIN_COMPLEXITY, minComplexity);
         ChooseLockPassword activity = buildChooseLockPasswordActivity(intent);
         ChooseLockPasswordFragment fragment = getChooseLockPasswordFragment(activity);
-        byte[] userEnteredPasswordBytes = userEnteredPassword != null
-                ? userEnteredPassword.getBytes() : null;
-        int validateResult = fragment.validatePassword(userEnteredPasswordBytes);
-        String[] messages = fragment.convertErrorCodeToMessages(validateResult);
-
+        fragment.validatePassword(userEnteredPassword);
+        String[] messages = fragment.convertErrorCodeToMessages();
         assertThat(messages).asList().containsExactly((Object[]) expectedValidationResult);
     }
 }
diff --git a/tests/robotests/src/com/android/settings/password/ChooseLockPatternTest.java b/tests/robotests/src/com/android/settings/password/ChooseLockPatternTest.java
index 48ebbec..0100744 100644
--- a/tests/robotests/src/com/android/settings/password/ChooseLockPatternTest.java
+++ b/tests/robotests/src/com/android/settings/password/ChooseLockPatternTest.java
@@ -24,6 +24,8 @@
 import android.os.UserHandle;
 import android.view.View;
 
+import com.android.internal.widget.LockPatternUtils;
+import com.android.internal.widget.LockscreenCredential;
 import com.android.settings.R;
 import com.android.settings.password.ChooseLockPattern.ChooseLockPatternFragment;
 import com.android.settings.password.ChooseLockPattern.IntentBuilder;
@@ -52,7 +54,7 @@
     @Test
     public void intentBuilder_setPattern_shouldAddExtras() {
         Intent intent = new IntentBuilder(application)
-                .setPattern("pattern".getBytes())
+                .setPattern(createPattern("1234"))
                 .setUserId(123)
                 .build();
 
@@ -60,10 +62,10 @@
                 .getBooleanExtra(ChooseLockSettingsHelper.EXTRA_KEY_HAS_CHALLENGE, true))
                 .named("EXTRA_KEY_HAS_CHALLENGE")
                 .isFalse();
-        assertThat(intent
-                .getByteArrayExtra(ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD))
+        assertThat((LockscreenCredential) intent
+                .getParcelableExtra(ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD))
                 .named("EXTRA_KEY_PASSWORD")
-                .isEqualTo("pattern".getBytes());
+                .isEqualTo(createPattern("1234"));
         assertThat(intent.getIntExtra(Intent.EXTRA_USER_ID, 0))
                 .named("EXTRA_USER_ID")
                 .isEqualTo(123);
@@ -120,4 +122,9 @@
                         .build())
                 .setup().get();
     }
+
+    private LockscreenCredential createPattern(String patternString) {
+        return LockscreenCredential.createPattern(LockPatternUtils.byteArrayToPattern(
+                patternString.getBytes()));
+    }
 }
diff --git a/tests/robotests/src/com/android/settings/testutils/shadow/ShadowDevicePolicyManager.java b/tests/robotests/src/com/android/settings/testutils/shadow/ShadowDevicePolicyManager.java
index ca75916..b8fdf89 100644
--- a/tests/robotests/src/com/android/settings/testutils/shadow/ShadowDevicePolicyManager.java
+++ b/tests/robotests/src/com/android/settings/testutils/shadow/ShadowDevicePolicyManager.java
@@ -6,6 +6,8 @@
 import android.annotation.Nullable;
 import android.annotation.UserIdInt;
 import android.app.admin.DevicePolicyManager;
+import android.app.admin.PasswordMetrics;
+import android.app.admin.PasswordPolicy;
 import android.content.ComponentName;
 
 import org.robolectric.RuntimeEnvironment;
@@ -26,7 +28,6 @@
     private ComponentName mDeviceOwnerComponentName;
     private int mDeviceOwnerUserId = -1;
     private int mPasswordMinQuality = PASSWORD_QUALITY_UNSPECIFIED;
-    private int mPasswordMaxLength = 16;
     private int mPasswordMinLength = 0;
     private int mPasswordMinSymbols = 0;
 
@@ -77,41 +78,26 @@
     }
 
     @Implementation
-    public int getPasswordQuality(ComponentName admin, int userHandle) {
-        return mPasswordMinQuality;
+    public PasswordMetrics getPasswordMinimumMetrics(int userHandle) {
+        PasswordPolicy policy = new PasswordPolicy();
+        policy.quality = mPasswordMinQuality;
+        policy.length = mPasswordMinLength;
+        policy.symbols = mPasswordMinSymbols;
+        return policy.getMinMetrics();
     }
 
     public void setPasswordQuality(int quality) {
         mPasswordMinQuality = quality;
     }
 
-    @Implementation
-    public int getPasswordMinimumLength(ComponentName admin, int userHandle) {
-        return mPasswordMinLength;
-    }
-
     public void setPasswordMinimumLength(int length) {
         mPasswordMinLength = length;
     }
 
-    @Implementation
-    public int getPasswordMinimumSymbols(ComponentName admin, int userHandle) {
-        return mPasswordMinSymbols;
-    }
-
     public void setPasswordMinimumSymbols(int numOfSymbols) {
         mPasswordMinSymbols = numOfSymbols;
     }
 
-    @Implementation
-    public int getPasswordMaximumLength(int quality) {
-        return mPasswordMaxLength;
-    }
-
-    public void setPasswordMaximumLength(int length) {
-        mPasswordMaxLength = length;
-    }
-
     public static ShadowDevicePolicyManager getShadow() {
         return (ShadowDevicePolicyManager) Shadow.extract(
                 RuntimeEnvironment.application.getSystemService(DevicePolicyManager.class));
diff --git a/tests/robotests/src/com/android/settings/testutils/shadow/ShadowLockPatternUtils.java b/tests/robotests/src/com/android/settings/testutils/shadow/ShadowLockPatternUtils.java
index e9be346..38756ac 100644
--- a/tests/robotests/src/com/android/settings/testutils/shadow/ShadowLockPatternUtils.java
+++ b/tests/robotests/src/com/android/settings/testutils/shadow/ShadowLockPatternUtils.java
@@ -20,6 +20,7 @@
 import android.content.ComponentName;
 
 import com.android.internal.widget.LockPatternUtils;
+import com.android.internal.widget.LockscreenCredential;
 
 import org.robolectric.annotation.Implementation;
 import org.robolectric.annotation.Implements;
@@ -66,7 +67,8 @@
     }
 
     @Implementation
-    protected byte[] getPasswordHistoryHashFactor(byte[] currentPassword, int userId) {
+    protected byte[] getPasswordHistoryHashFactor(LockscreenCredential currentPassword,
+            int userId) {
         return null;
     }
 
diff --git a/tests/robotests/src/com/android/settings/widget/SwitchBarTest.java b/tests/robotests/src/com/android/settings/widget/SwitchBarTest.java
index f186222..31cb966 100644
--- a/tests/robotests/src/com/android/settings/widget/SwitchBarTest.java
+++ b/tests/robotests/src/com/android/settings/widget/SwitchBarTest.java
@@ -85,6 +85,24 @@
     }
 
     @Test
+    public void setCheck_customLabelWithStringType_shouldUpdateTextAndBackground() {
+        final String onText = mContext.getString(
+                R.string.accessibility_service_master_switch_title);
+        final String offText = mContext.getString(
+                R.string.accessibility_service_master_switch_title);
+        final TextView switchBarTextView = ((TextView) mBar.findViewById(R.id.switch_text));
+
+        mBar.setSwitchBarText(onText, offText);
+
+        assertThat(switchBarTextView.getText()).isEqualTo(offText);
+
+        mBar.setChecked(true);
+
+        assertThat(mBar.getBackground()).isInstanceOf(ColorDrawable.class);
+        assertThat(switchBarTextView.getText()).isEqualTo(onText);
+    }
+
+    @Test
     public void disabledByAdmin_shouldDelegateToRestrictedIcon() {
         mBar.setDisabledByAdmin(new EnforcedAdmin());
         assertThat(mBar.getDelegatingView().getId()).isEqualTo(R.id.restricted_icon);
diff --git a/tests/robotests/src/com/android/settings/wifi/savedaccesspoints/SavedAccessPointsPreferenceControllerTest.java b/tests/robotests/src/com/android/settings/wifi/savedaccesspoints/SavedAccessPointsPreferenceControllerTest.java
index 73e1297..e955224 100644
--- a/tests/robotests/src/com/android/settings/wifi/savedaccesspoints/SavedAccessPointsPreferenceControllerTest.java
+++ b/tests/robotests/src/com/android/settings/wifi/savedaccesspoints/SavedAccessPointsPreferenceControllerTest.java
@@ -98,7 +98,7 @@
 
     @Test
     @Config(shadows = ShadowAccessPoint.class)
-    public void refreshSavedAccessPoints_shouldListNonSubscribedAPs() {
+    public void displayPreference_oneAccessPoint_shouldListNonSubscribedAPs() {
         final WifiConfiguration config = new WifiConfiguration();
         config.SSID = "SSID";
         config.BSSID = "BSSID";
@@ -117,7 +117,7 @@
 
     @Test
     @Config(shadows = ShadowAccessPoint.class)
-    public void refreshSavedAccessPoints_shouldNotListSubscribedAPs() {
+    public void displayPreference_onePasspoint_shouldNotListSubscribedAPs() {
         mWifiManager.addOrUpdatePasspointConfiguration(
                 SubscribedAccessPointsPreferenceControllerTest.createMockPasspointConfiguration());
 
diff --git a/tests/robotests/src/com/android/settings/wifi/savedaccesspoints/SubscribedAccessPointsPreferenceControllerTest.java b/tests/robotests/src/com/android/settings/wifi/savedaccesspoints/SubscribedAccessPointsPreferenceControllerTest.java
index f9307db..b28498b 100644
--- a/tests/robotests/src/com/android/settings/wifi/savedaccesspoints/SubscribedAccessPointsPreferenceControllerTest.java
+++ b/tests/robotests/src/com/android/settings/wifi/savedaccesspoints/SubscribedAccessPointsPreferenceControllerTest.java
@@ -16,9 +16,6 @@
 
 package com.android.settings.wifi.savedaccesspoints;
 
-import static com.android.settings.core.BasePreferenceController.AVAILABLE;
-import static com.android.settings.core.BasePreferenceController.CONDITIONALLY_UNAVAILABLE;
-
 import static com.google.common.truth.Truth.assertThat;
 
 import static org.mockito.ArgumentMatchers.any;
@@ -32,7 +29,6 @@
 import android.net.wifi.WifiManager;
 import android.net.wifi.hotspot2.PasspointConfiguration;
 import android.net.wifi.hotspot2.pps.HomeSp;
-import android.os.Bundle;
 
 import androidx.preference.PreferenceCategory;
 import androidx.preference.PreferenceScreen;
@@ -42,9 +38,6 @@
 import com.android.settingslib.wifi.AccessPoint;
 import com.android.settingslib.wifi.AccessPointPreference;
 
-import java.util.ArrayList;
-import java.util.Arrays;
-
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -84,23 +77,8 @@
     }
 
     @Test
-    public void getAvailability_noSavedAccessPoint_shouldNotAvailable() {
-        mController.mAccessPoints = new ArrayList<>();
-
-        assertThat(mController.getAvailabilityStatus()).isEqualTo(CONDITIONALLY_UNAVAILABLE);
-    }
-
-    @Test
-    public void getAvailability_oneSavedAccessPoint_shouldAvailable() {
-        final AccessPoint accessPoint = new AccessPoint(mContext, new Bundle() /* savedState */);
-        mController.mAccessPoints = new ArrayList<AccessPoint>(Arrays.asList(accessPoint));
-
-        assertThat(mController.getAvailabilityStatus()).isEqualTo(AVAILABLE);
-    }
-
-    @Test
     @Config(shadows = ShadowAccessPoint.class)
-    public void refreshSubscribedAccessPoints_shouldNotListNonSubscribedAPs() {
+    public void displayPreference_oneAccessPoint_shouldNotListNonSubscribedAPs() {
         final WifiConfiguration config = new WifiConfiguration();
         config.SSID = "SSID";
         config.BSSID = "BSSID";
@@ -114,7 +92,7 @@
 
     @Test
     @Config(shadows = ShadowAccessPoint.class)
-    public void refreshSubscribedAccessPoints_shouldListSubscribedAPs() {
+    public void displayPreference_onePasspoint_shouldListSubscribedAPs() {
         mWifiManager.addOrUpdatePasspointConfiguration(createMockPasspointConfiguration());
 
         mController.displayPreference(mPreferenceScreen);
diff --git a/tests/unit/src/com/android/settings/RegulatoryInfoDisplayActivityTest.java b/tests/unit/src/com/android/settings/RegulatoryInfoDisplayActivityTest.java
deleted file mode 100644
index 1701ddf..0000000
--- a/tests/unit/src/com/android/settings/RegulatoryInfoDisplayActivityTest.java
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.settings;
-
-import static junit.framework.Assert.fail;
-
-import android.app.Instrumentation;
-import android.app.UiAutomation;
-import android.content.Context;
-import android.content.Intent;
-import android.content.pm.ResolveInfo;
-
-import androidx.test.InstrumentationRegistry;
-import androidx.test.filters.SmallTest;
-import androidx.test.runner.AndroidJUnit4;
-
-import org.junit.Before;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-
-@RunWith(AndroidJUnit4.class)
-@SmallTest
-public class RegulatoryInfoDisplayActivityTest {
-    private static final String TAG = "RegulatoryInfoTest";
-
-    private Instrumentation mInstrumentation;
-    private Intent mRegulatoryInfoIntent;
-    private UiAutomation mUiAutomation;
-
-    @Before
-    public void setUp() {
-        mInstrumentation = InstrumentationRegistry.getInstrumentation();
-        mUiAutomation = InstrumentationRegistry.getInstrumentation().getUiAutomation();
-        mRegulatoryInfoIntent = new Intent("android.settings.SHOW_REGULATORY_INFO")
-                .addCategory(Intent.CATEGORY_DEFAULT)
-                .setPackage(mInstrumentation.getTargetContext().getPackageName());
-    }
-
-    @Test
-    public void resolveRegulatoryInfoIntent_intentShouldMatchConfig() {
-        // Load intent from PackageManager and load config from Settings app
-        final Context context = mInstrumentation.getTargetContext();
-
-        final boolean hasRegulatoryInfo = context.getResources()
-                .getBoolean(R.bool.config_show_regulatory_info);
-        final ResolveInfo resolveInfo = mInstrumentation.getTargetContext().getPackageManager()
-                .resolveActivity(mRegulatoryInfoIntent, 0 /* flags */);
-
-        // Check config and intent both enable or both disabled.
-        if (hasRegulatoryInfo && resolveInfo == null) {
-            fail("Config enables regulatory info but there is no handling intent");
-            return;
-        }
-        if (!hasRegulatoryInfo && resolveInfo != null) {
-            fail("Config disables regulatory info but there is at least one handling intent");
-            return;
-        }
-    }
-}
diff --git a/tests/unit/src/com/android/settings/password/ChooseLockGenericTest.java b/tests/unit/src/com/android/settings/password/ChooseLockGenericTest.java
index 582afd2..4b539cc 100644
--- a/tests/unit/src/com/android/settings/password/ChooseLockGenericTest.java
+++ b/tests/unit/src/com/android/settings/password/ChooseLockGenericTest.java
@@ -43,6 +43,7 @@
 import androidx.test.runner.lifecycle.Stage;
 
 import com.android.internal.widget.LockPatternUtils;
+import com.android.internal.widget.LockscreenCredential;
 
 import org.junit.Before;
 import org.junit.Rule;
@@ -150,7 +151,7 @@
                 .putExtra(LockPatternUtils.PASSWORD_TYPE_KEY,
                         DevicePolicyManager.PASSWORD_QUALITY_NUMERIC)
                 .putExtra(ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD,
-                        "12345")
+                        LockscreenCredential.createPin("12345"))
                 .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
         getInstrumentation().getContext().startActivity(newPasswordIntent);
         mDevice.waitForIdle();