Merge "Support EXTRA_DEVICE_PASSWORD_REQUIREMENT_ONLY"
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 34b4041..114b41c 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -5239,6 +5239,8 @@
         <item quantity="one"><xliff:g id="number_device_count">%1$d</xliff:g> saved hearing aid</item>
         <item quantity="other"><xliff:g id="number_device_count">%1$d</xliff:g> saved hearing aids</item>
     </plurals>
+    <!-- Title for the accessibility audio adjustment page. [CHAR LIMIT=50] -->
+    <string name="accessibility_audio_adjustment_title">Audio adjustment</string>
 
     <!-- Preference's shortcut when enabled. [CHAR LIMIT=NONE] -->
     <string name="accessibility_summary_shortcut_enabled">Shortcut on</string>
diff --git a/res/xml/accessibility_audio_adjustment.xml b/res/xml/accessibility_audio_adjustment.xml
new file mode 100644
index 0000000..c38b4ad
--- /dev/null
+++ b/res/xml/accessibility_audio_adjustment.xml
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2021 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="accessibility_audio_adjustment"
+    android:persistent="false"
+    android:title="@string/accessibility_audio_adjustment_title">
+
+    <SwitchPreference
+        android:key="toggle_primary_mono"
+        android:persistent="false"
+        android:summary="@string/accessibility_toggle_primary_mono_summary"
+        android:title="@string/accessibility_toggle_primary_mono_title"
+        settings:controller="com.android.settings.accessibility.PrimaryMonoPreferenceController"/>
+
+    <com.android.settings.accessibility.BalanceSeekBarPreference
+        android:key="seekbar_primary_balance"
+        android:persistent="false"
+        android:title="@string/accessibility_toggle_primary_balance_title"/>
+</PreferenceScreen>
diff --git a/res/xml/accessibility_settings.xml b/res/xml/accessibility_settings.xml
index b7c28b4..36125b3 100644
--- a/res/xml/accessibility_settings.xml
+++ b/res/xml/accessibility_settings.xml
@@ -100,18 +100,6 @@
             settings:searchable="false"
             settings:controller="com.android.settings.accessibility.LiveCaptionPreferenceController"/>
 
-        <SwitchPreference
-            android:key="toggle_primary_mono"
-            android:persistent="false"
-            android:summary="@string/accessibility_toggle_primary_mono_summary"
-            android:title="@string/accessibility_toggle_primary_mono_title"
-            settings:controller="com.android.settings.accessibility.PrimaryMonoPreferenceController"/>
-
-        <com.android.settings.accessibility.BalanceSeekBarPreference
-            android:key="seekbar_primary_balance"
-            android:persistent="false"
-            android:title="@string/accessibility_toggle_primary_balance_title"/>
-
         <Preference
             android:key="hearing_aid_preference"
             android:persistent="false"
@@ -120,6 +108,13 @@
             settings:controller="com.android.settings.accessibility.AccessibilityHearingAidPreferenceController"/>
 
         <Preference
+            android:fragment="com.android.settings.accessibility.AudioAdjustmentFragment"
+            android:key="audio_adjustment_preference_screen"
+            android:persistent="false"
+            android:title="@string/accessibility_audio_adjustment_title"
+            settings:searchable="true"/>
+
+        <Preference
             android:key="rtt_setting"
             android:summary="@string/summary_placeholder"
             android:title="@string/rtt_settings_title"
diff --git a/src/com/android/settings/accessibility/AudioAdjustmentFragment.java b/src/com/android/settings/accessibility/AudioAdjustmentFragment.java
new file mode 100644
index 0000000..c80216b
--- /dev/null
+++ b/src/com/android/settings/accessibility/AudioAdjustmentFragment.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2021 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.accessibility;
+
+import android.app.settings.SettingsEnums;
+
+import com.android.settings.R;
+import com.android.settings.dashboard.DashboardFragment;
+import com.android.settings.search.BaseSearchIndexProvider;
+import com.android.settingslib.search.SearchIndexable;
+
+/** Accessibility settings for audio adjustment. */
+@SearchIndexable(forTarget = SearchIndexable.ALL & ~SearchIndexable.ARC)
+public class AudioAdjustmentFragment extends DashboardFragment {
+
+    private static final String TAG = "AudioAdjustmentFragment";
+
+    @Override
+    public int getMetricsCategory() {
+        return SettingsEnums.ACCESSIBILITY_AUDIO_ADJUSTMENT;
+    }
+
+    @Override
+    protected int getPreferenceScreenResId() {
+        return R.xml.accessibility_audio_adjustment;
+    }
+
+    @Override
+    protected String getLogTag() {
+        return TAG;
+    }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.accessibility_audio_adjustment);
+
+}
diff --git a/src/com/android/settings/network/SubscriptionUtil.java b/src/com/android/settings/network/SubscriptionUtil.java
index 054e3d9..ff5de3e 100644
--- a/src/com/android/settings/network/SubscriptionUtil.java
+++ b/src/com/android/settings/network/SubscriptionUtil.java
@@ -324,6 +324,23 @@
         return displayNames.getOrDefault(subscriptionId, "");
     }
 
+    /**
+     * Return the display name for a subscription, which is guaranteed to be unique.
+     * The logic to create this name has the following order of operations:
+     * 1) If the original display name is not unique, the last four digits of the phone number
+     *    will be appended.
+     * 2) If the phone number is not visible or the last four digits are shared with another
+     *    subscription, the subscription id will be appended to the original display name.
+     * More details can be found at go/unique-sub-display-names.
+     *
+     * @return map of active subscription ids to diaplay names.
+     */
+    @VisibleForTesting
+    public static CharSequence getUniqueSubscriptionDisplayName(
+            SubscriptionInfo info, Context context) {
+        return getUniqueSubscriptionDisplayName(info.getSubscriptionId(), context);
+    }
+
     public static String getDisplayName(SubscriptionInfo info) {
         final CharSequence name = info.getDisplayName();
         if (name != null) {
diff --git a/tests/robotests/src/com/android/settings/accessibility/AudioAdjustmentFragmentTest.java b/tests/robotests/src/com/android/settings/accessibility/AudioAdjustmentFragmentTest.java
new file mode 100644
index 0000000..814736d
--- /dev/null
+++ b/tests/robotests/src/com/android/settings/accessibility/AudioAdjustmentFragmentTest.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2021 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.accessibility;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import android.content.Context;
+
+import androidx.test.core.app.ApplicationProvider;
+
+import com.android.settings.R;
+import com.android.settings.testutils.XmlTestUtils;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
+
+import java.util.List;
+
+/** Tests for {@link AudioAdjustmentFragment}. */
+@RunWith(RobolectricTestRunner.class)
+public class AudioAdjustmentFragmentTest {
+
+    private Context mContext = ApplicationProvider.getApplicationContext();
+
+    @Test
+    public void getNonIndexableKeys_existInXmlLayout() {
+        final List<String> niks = AudioAdjustmentFragment.SEARCH_INDEX_DATA_PROVIDER
+                .getNonIndexableKeys(mContext);
+        final List<String> keys =
+                XmlTestUtils.getKeysFromPreferenceXml(mContext,
+                        R.xml.accessibility_audio_adjustment);
+
+        assertThat(keys).containsAtLeastElementsIn(niks);
+    }
+}
diff --git a/tests/unit/src/com/android/settings/network/SubscriptionUtilTest.java b/tests/unit/src/com/android/settings/network/SubscriptionUtilTest.java
index 85ac011..b36675a 100644
--- a/tests/unit/src/com/android/settings/network/SubscriptionUtilTest.java
+++ b/tests/unit/src/com/android/settings/network/SubscriptionUtilTest.java
@@ -361,6 +361,26 @@
     }
 
     @Test
+    public void getUniqueDisplayName_fullSubscriptionInfo_correctNameReturned() {
+        // Each subscription's default display name is unique.
+        final SubscriptionInfo info1 = mock(SubscriptionInfo.class);
+        when(info1.getSubscriptionId()).thenReturn(SUBID_1);
+        when(info1.getDisplayName()).thenReturn(CARRIER_1);
+        when(mSubMgr.getActiveSubscriptionInfoList()).thenReturn(
+                Arrays.asList(info1));
+
+        TelephonyManager sub1Telmgr = mock(TelephonyManager.class);
+        when(sub1Telmgr.getLine1Number()).thenReturn("1112223333");
+        when(mTelMgr.createForSubscriptionId(SUBID_1)).thenReturn(sub1Telmgr);
+
+        final CharSequence name =
+                SubscriptionUtil.getUniqueSubscriptionDisplayName(info1, mContext);
+
+        assertThat(name).isNotNull();
+        assertEquals(CARRIER_1, name);
+    }
+
+    @Test
     public void isInactiveInsertedPSim_nullSubInfo_doesNotCrash() {
         assertThat(SubscriptionUtil.isInactiveInsertedPSim(null)).isFalse();
     }