Merge "Go to the old storage settings when using non-internal storage."
diff --git a/res/layout/preference_footer.xml b/res/layout/preference_footer.xml
index 64fad74..e336ac1 100644
--- a/res/layout/preference_footer.xml
+++ b/res/layout/preference_footer.xml
@@ -42,7 +42,7 @@
             android:layout_height="wrap_content"/>
     </LinearLayout>
 
-    <com.android.settings.widget.LinkTextView
+    <com.android.settingslib.widget.LinkTextView
         android:id="@android:id/title"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
diff --git a/res/layout/support_disclaimer_content.xml b/res/layout/support_disclaimer_content.xml
index 196bef2..1e81f1a 100644
--- a/res/layout/support_disclaimer_content.xml
+++ b/res/layout/support_disclaimer_content.xml
@@ -23,7 +23,7 @@
         android:orientation="vertical"
         android:padding="24dp">
 
-        <com.android.settings.widget.LinkTextView
+        <com.android.settingslib.widget.LinkTextView
             android:id="@+id/support_disclaimer_text"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 099a290..2879002 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -7004,8 +7004,8 @@
     <!-- Label for list to control apps that ignore battery saving restrictions [CHAR LIMIT=27]-->
     <string name="high_power_apps">Battery optimization</string>
 
-    <!-- Label for menu to launch additional battery info -->
-    <string name="additional_battery_info" translatable="false">Additional battery info</string>
+    <!-- Label for menu to launch a screen showing usage alerts for battery [CHAR LIMIT=30] -->
+    <string name="additional_battery_info">Usage alerts</string>
 
     <!-- Filter for apps allowed to use a lot of power [CHAR LIMIT=25] -->
     <string name="high_power_filter_on">Not optimized</string>
diff --git a/res/xml/location_settings.xml b/res/xml/location_settings.xml
index ecce221..adfff63 100644
--- a/res/xml/location_settings.xml
+++ b/res/xml/location_settings.xml
@@ -37,7 +37,12 @@
         <!-- This preference category gets removed if new_recent_location_ui is disabled -->
         <Preference
             android:key="app_level_permissions"
-            android:title="@string/location_app_level_permissions" />
+            android:title="@string/location_app_level_permissions">
+            <intent android:action="android.intent.action.MANAGE_PERMISSION_APPS">
+                <extra android:name="android.intent.extra.PERMISSION_NAME"
+                       android:value="android.permission-group.LOCATION" />
+            </intent>
+        </Preference>
 
         <com.android.settings.DividedCategory
             android:key="recent_location_requests"
diff --git a/src/com/android/settings/AllowBindAppWidgetActivity.java b/src/com/android/settings/AllowBindAppWidgetActivity.java
index c3bf78a..2f98ab3 100644
--- a/src/com/android/settings/AllowBindAppWidgetActivity.java
+++ b/src/com/android/settings/AllowBindAppWidgetActivity.java
@@ -42,6 +42,7 @@
 
     private CheckBox mAlwaysUse;
     private int mAppWidgetId;
+    private Bundle mBindOptions;
     private UserHandle mProfile;
     private ComponentName mComponentName;
     private String mCallingPackage;
@@ -57,7 +58,7 @@
             if (mAppWidgetId != -1 && mComponentName != null && mCallingPackage != null) {
                 try {
                     final boolean bound = mAppWidgetManager.bindAppWidgetIdIfAllowed(mAppWidgetId,
-                            mProfile, mComponentName, null);
+                            mProfile, mComponentName, mBindOptions);
                     if (bound) {
                         Intent result = new Intent();
                         result.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, mAppWidgetId);
@@ -100,6 +101,8 @@
                 }
                 mComponentName =
                         intent.getParcelableExtra(AppWidgetManager.EXTRA_APPWIDGET_PROVIDER);
+                mBindOptions =
+                        intent.getParcelableExtra(AppWidgetManager.EXTRA_APPWIDGET_OPTIONS);
                 mCallingPackage = getCallingPackage();
                 PackageManager pm = getPackageManager();
                 ApplicationInfo ai = pm.getApplicationInfo(mCallingPackage, 0);
diff --git a/src/com/android/settings/DefaultRingtonePreference.java b/src/com/android/settings/DefaultRingtonePreference.java
index 6893a21..09f5af4 100644
--- a/src/com/android/settings/DefaultRingtonePreference.java
+++ b/src/com/android/settings/DefaultRingtonePreference.java
@@ -30,7 +30,7 @@
 public class DefaultRingtonePreference extends RingtonePreference {
     private static final String TAG = "DefaultRingtonePreference";
 
-    private int mUserId;
+    private int mUserId = UserHandle.USER_CURRENT;
     protected Context mUserContext;
 
     public DefaultRingtonePreference(Context context, AttributeSet attrs) {
@@ -40,21 +40,19 @@
 
     public void setUserId(int userId) {
         mUserId = userId;
-        Context context = getContext();
-        mUserContext = Utils.createPackageContextAsUser(context, mUserId);
+        mUserContext = Utils.createPackageContextAsUser(getContext(), mUserId);
     }
 
     @Override
     public void performClick() {
-        if (!Utils.startQuietModeDialogIfNecessary(getContext(), UserManager.get(getContext()),
-                mUserId)) {
-            super.performClick();
+        if (mUserId != UserHandle.USER_CURRENT) {
+            if (Utils.unlockWorkProfileIfNecessary(getContext(), mUserId) ||
+                    Utils.startQuietModeDialogIfNecessary(getContext(),
+                            UserManager.get(getContext()), mUserId)) {
+                return;
+            }
         }
-    }
-
-    public void clearUserId(int userId) {
-        mUserId = UserHandle.USER_CURRENT;
-        mUserContext = getContext();
+        super.performClick();
     }
 
     @Override
diff --git a/src/com/android/settings/core/instrumentation/MetricsFeatureProviderImpl.java b/src/com/android/settings/core/instrumentation/MetricsFeatureProviderImpl.java
index b74c886..091eb54 100644
--- a/src/com/android/settings/core/instrumentation/MetricsFeatureProviderImpl.java
+++ b/src/com/android/settings/core/instrumentation/MetricsFeatureProviderImpl.java
@@ -34,6 +34,7 @@
 
     protected void installLogWriters() {
         mLoggerWriters.add(new EventLogWriter());
+        mLoggerWriters.add(new SettingSuggestionsLogWriter());
     }
 
     @Override
diff --git a/src/com/android/settings/core/instrumentation/SettingSuggestionsLogWriter.java b/src/com/android/settings/core/instrumentation/SettingSuggestionsLogWriter.java
new file mode 100644
index 0000000..4c277fb
--- /dev/null
+++ b/src/com/android/settings/core/instrumentation/SettingSuggestionsLogWriter.java
@@ -0,0 +1,77 @@
+/*
+ * 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.core.instrumentation;
+
+import android.content.Context;
+import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
+import com.android.internal.logging.MetricsLogger;
+import com.android.settings.suggestions.EventStore;
+
+/**
+ * {@link LogWriter} that writes setting suggestion related logs.
+ */
+public class SettingSuggestionsLogWriter implements LogWriter {
+
+    private EventStore mEventStore;
+
+    @Override
+    public void visible(Context context, int category) {
+    }
+
+    @Override
+    public void hidden(Context context, int category) {
+    }
+
+    @Override
+    public void action(Context context, int category) {
+    }
+
+    @Override
+    public void action(Context context, int category, int value) {
+    }
+
+    @Override
+    public void action(Context context, int category, boolean value) {
+    }
+
+    @Override
+    public void action(Context context, int category, String pkg) {
+        if (mEventStore == null) {
+            mEventStore = new EventStore(context);
+        }
+        switch (category) {
+            case MetricsEvent.ACTION_SHOW_SETTINGS_SUGGESTION:
+                mEventStore.writeEvent(pkg, EventStore.EVENT_SHOWN);
+                break;
+            case MetricsEvent.ACTION_SETTINGS_DISMISS_SUGGESTION:
+                mEventStore.writeEvent(pkg, EventStore.EVENT_DISMISSED);
+                break;
+            case MetricsEvent.ACTION_SETTINGS_SUGGESTION:
+                mEventStore.writeEvent(pkg, EventStore.EVENT_CLICKED);
+                break;
+        }
+    }
+
+    @Override
+    public void count(Context context, String name, int value) {
+    }
+
+    @Override
+    public void histogram(Context context, String name, int bucket) {
+    }
+
+}
diff --git a/src/com/android/settings/dashboard/DashboardSummary.java b/src/com/android/settings/dashboard/DashboardSummary.java
index 9d64d4c..fddf2d7 100644
--- a/src/com/android/settings/dashboard/DashboardSummary.java
+++ b/src/com/android/settings/dashboard/DashboardSummary.java
@@ -36,6 +36,9 @@
 import com.android.settings.dashboard.conditional.ConditionManager;
 import com.android.settings.dashboard.conditional.FocusRecyclerView;
 import com.android.settings.overlay.FeatureFactory;
+import com.android.settings.suggestions.EventStore;
+import com.android.settings.suggestions.SuggestionFeaturizer;
+import com.android.settings.suggestions.SuggestionRanker;
 import com.android.settingslib.SuggestionParser;
 import com.android.settingslib.drawer.CategoryKey;
 import com.android.settingslib.drawer.DashboardCategory;
@@ -66,11 +69,13 @@
     private SummaryLoader mSummaryLoader;
     private ConditionManager mConditionManager;
     private SuggestionParser mSuggestionParser;
+    private SuggestionRanker mSuggestionRanker;
     private LinearLayoutManager mLayoutManager;
     private SuggestionsChecks mSuggestionsChecks;
     private ArrayList<String> mSuggestionsShownLogged;
     private ArrayList<String> mSuggestionsHiddenLogged;
     private DashboardFeatureProvider mDashboardFeatureProvider;
+    private SuggestionFeatureProvider mSuggestionFeatureProvider;
 
     @Override
     public int getMetricsCategory() {
@@ -84,6 +89,8 @@
         final Activity activity = getActivity();
         mDashboardFeatureProvider = FeatureFactory.getFactory(activity)
                 .getDashboardFeatureProvider(activity);
+        mSuggestionFeatureProvider = FeatureFactory.getFactory(activity)
+                .getSuggestionFeatureProvider();
 
         if (mDashboardFeatureProvider.isEnabled()) {
             mSummaryLoader = new SummaryLoader(activity, CategoryKey.CATEGORY_HOMEPAGE);
@@ -95,6 +102,8 @@
         mConditionManager = ConditionManager.get(activity, false);
         mSuggestionParser = new SuggestionParser(activity,
                 activity.getSharedPreferences(SUGGESTIONS, 0), R.xml.suggestion_ordering);
+        mSuggestionRanker = new SuggestionRanker(
+                new SuggestionFeaturizer(new EventStore(activity)));
         mSuggestionsChecks = new SuggestionsChecks(getContext());
         if (savedInstanceState == null) {
             mSuggestionsShownLogged = new ArrayList<>();
@@ -260,6 +269,16 @@
         protected List<Tile> doInBackground(Void... params) {
             final Context context = getContext();
             List<Tile> suggestions = mSuggestionParser.getSuggestions();
+            if (mSuggestionFeatureProvider.isSmartSuggestionEnabled(context)) {
+                List<String> suggestionIds = new ArrayList<>(suggestions.size());
+                for (Tile suggestion : suggestions) {
+                    suggestionIds.add(
+                        DashboardAdapter.getSuggestionIdentifier(context, suggestion));
+                }
+                // TODO: create a Suggestion class to maintain the id and other info
+                mSuggestionRanker.rank(suggestions, suggestionIds);
+                // TODO: consider showing only top-k (e.g., top-3)
+            }
             for (int i = 0; i < suggestions.size(); i++) {
                 Tile suggestion = suggestions.get(i);
                 if (mSuggestionsChecks.isSuggestionComplete(suggestion)) {
diff --git a/src/com/android/settings/location/LocationSettings.java b/src/com/android/settings/location/LocationSettings.java
index d6ff4dc..4177afb 100644
--- a/src/com/android/settings/location/LocationSettings.java
+++ b/src/com/android/settings/location/LocationSettings.java
@@ -18,7 +18,6 @@
 
 import android.app.Activity;
 import android.app.admin.DevicePolicyManager;
-import android.content.ActivityNotFoundException;
 import android.content.BroadcastReceiver;
 import android.content.ComponentName;
 import android.content.Context;
@@ -96,14 +95,11 @@
     private static final String KEY_LOCATION_MODE = "location_mode";
     /** Key for preference category "Recent location requests" */
     private static final String KEY_RECENT_LOCATION_REQUESTS = "recent_location_requests";
-    /** Key for preference "App-level permissions" */
-    private static final String KEY_APP_LEVEL_PERMISSIONS = "app_level_permissions";
     /** Key for preference category "Location services" */
     private static final String KEY_LOCATION_SERVICES = "location_services";
 
     private static final int MENU_SCANNING = Menu.FIRST;
 
-    private static final String KEY_LOCATION_PERMISSION = "android.permission-group.LOCATION";
     private SwitchBar mSwitchBar;
     private Switch mSwitch;
     private boolean mValidListener = false;
@@ -211,11 +207,6 @@
         final AppLocationPermissionPreferenceController preferenceController =
                 new AppLocationPermissionPreferenceController(activity);
         preferenceController.displayPreference(root);
-        if (preferenceController.isAvailable()) {
-            Preference preferenceAppLevelPermissions =
-                    root.findPreference(KEY_APP_LEVEL_PERMISSIONS);
-            setupAppLevelPermissionsPreference(preferenceAppLevelPermissions);
-        }
 
         mCategoryRecentLocationRequests =
                 (PreferenceCategory) root.findPreference(KEY_RECENT_LOCATION_REQUESTS);
@@ -276,23 +267,6 @@
         }
     }
 
-    private void setupAppLevelPermissionsPreference(Preference preference) {
-        preference.setOnPreferenceClickListener(
-                new Preference.OnPreferenceClickListener() {
-                    @Override
-                    public boolean onPreferenceClick(Preference preference) {
-                        Intent intent = new Intent(Intent.ACTION_MANAGE_PERMISSION_APPS)
-                                .putExtra(Intent.EXTRA_PERMISSION_NAME, KEY_LOCATION_PERMISSION);
-                        try {
-                            getActivity().startActivity(intent);
-                        } catch (ActivityNotFoundException e) {
-                            Log.w("Permission", "No app to handle " + intent);
-                        }
-                        return true;
-                    }
-                });
-    }
-
     private void changeManagedProfileLocationAccessStatus(boolean mainSwitchOn) {
         if (mManagedProfileSwitch == null) {
             return;
diff --git a/src/com/android/settings/notification/WorkSoundPreferenceController.java b/src/com/android/settings/notification/WorkSoundPreferenceController.java
index 96d88c9..c94991c 100644
--- a/src/com/android/settings/notification/WorkSoundPreferenceController.java
+++ b/src/com/android/settings/notification/WorkSoundPreferenceController.java
@@ -160,9 +160,8 @@
     }
 
     private CharSequence updateRingtoneName(Context context, int type) {
-        if (context == null) {
-            Log.e(TAG, "Unable to update ringtone name, no context provided");
-            return null;
+        if (context == null || !UserManager.get(context).isUserUnlocked(context.getUserId())) {
+            return context.getString(R.string.managed_profile_not_available_label);
         }
         Uri ringtoneUri = RingtoneManager.getActualDefaultRingtoneUri(context, type);
         return Ringtone.getTitle(context, ringtoneUri, false /* followSettingsUri */,
diff --git a/src/com/android/settings/overlay/SurveyFeatureProvider.java b/src/com/android/settings/overlay/SurveyFeatureProvider.java
index 907bed8..416a602 100644
--- a/src/com/android/settings/overlay/SurveyFeatureProvider.java
+++ b/src/com/android/settings/overlay/SurveyFeatureProvider.java
@@ -20,6 +20,7 @@
 import android.content.Context;
 import android.content.IntentFilter;
 import android.support.annotation.Nullable;
+import android.support.v4.content.LocalBroadcastManager;
 
 /**
  * An interface for classes wishing to provide the ability to serve surveys to implement.
@@ -81,5 +82,11 @@
      * after a call to {@link #createAndRegisterReceiver(Activity)}.
      * @param activity The activity that was used to register the BroadcastReceiver.
      */
-    void unregisterReceiver(Activity activity, BroadcastReceiver receiver);
+    static void unregisterReceiver(Activity activity, BroadcastReceiver receiver) {
+        if (activity == null) {
+            throw new IllegalStateException("Cannot unregister receiver if activity is null");
+        }
+
+        LocalBroadcastManager.getInstance(activity).unregisterReceiver(receiver);
+    }
 }
diff --git a/src/com/android/settings/suggestions/EventStore.java b/src/com/android/settings/suggestions/EventStore.java
new file mode 100644
index 0000000..bf94f48
--- /dev/null
+++ b/src/com/android/settings/suggestions/EventStore.java
@@ -0,0 +1,102 @@
+/*
+ * 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.suggestions;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.util.Log;
+
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Set;
+
+/**
+ * Stores suggestion related statistics.
+ */
+public class EventStore {
+
+    public static final String TAG = "SuggestionEventStore";
+
+    public static final String EVENT_SHOWN = "shown";
+    public static final String EVENT_DISMISSED = "dismissed";
+    public static final String EVENT_CLICKED = "clicked";
+    public static final String METRIC_LAST_EVENT_TIME = "last_event_time";
+    public static final String METRIC_COUNT = "count";
+
+    private static final Set<String> EVENTS = new HashSet<String>(
+            Arrays.asList(new String[] {EVENT_SHOWN, EVENT_DISMISSED, EVENT_CLICKED}));
+    private static final Set<String> METRICS = new HashSet<String>(
+            Arrays.asList(new String[] {METRIC_LAST_EVENT_TIME, METRIC_COUNT}));
+
+    private final SharedPreferences mSharedPrefs;
+
+    public EventStore(Context context) {
+        mSharedPrefs = context.getSharedPreferences(TAG, Context.MODE_PRIVATE);
+    }
+
+    /**
+     * Writes individual log events.
+     * @param pkgName: Package for which this event is reported.
+     * @param eventType: Type of event (one of {@link #EVENTS}).
+     */
+    public void writeEvent(String pkgName, String eventType) {
+        if (!EVENTS.contains(eventType)) {
+            Log.w(TAG, "Reported event type " + eventType + " is not a valid type!");
+            return;
+        }
+        final String lastTimePrefKey = getPrefKey(pkgName, eventType, METRIC_LAST_EVENT_TIME);
+        final String countPrefKey = getPrefKey(pkgName, eventType, METRIC_COUNT);
+        writePref(lastTimePrefKey, System.currentTimeMillis());
+        writePref(countPrefKey, readPref(countPrefKey, (long) 0) + 1);
+    }
+
+    /**
+     * Reads metric of the the reported events (e.g., counts).
+     * @param pkgName: Package for which this metric is queried.
+     * @param eventType: Type of event (one of {@link #EVENTS}).
+     * @param metricType: Type of the queried metric (one of {@link #METRICS}).
+     * @return the corresponding metric.
+     */
+    public long readMetric(String pkgName, String eventType, String metricType) {
+        if (!EVENTS.contains(eventType)) {
+            Log.w(TAG, "Reported event type " + eventType + " is not a valid event!");
+            return 0;
+        } else if (!METRICS.contains(metricType)) {
+            Log.w(TAG, "Required stat type + " + metricType + " is not a valid stat!");
+            return 0;
+        }
+        return readPref(getPrefKey(pkgName, eventType, metricType), (long) 0);
+    }
+
+    private void writePref(String prefKey, long value) {
+        mSharedPrefs.edit().putLong(prefKey, value).commit();
+    }
+
+    private long readPref(String prefKey, Long defaultValue) {
+        return mSharedPrefs.getLong(prefKey, defaultValue);
+    }
+
+    private String getPrefKey(String pkgName, String eventType, String statType) {
+        return new StringBuilder()
+                .append("setting_suggestion_")
+                .append(pkgName)
+                .append("_")
+                .append(eventType)
+                .append("_")
+                .append(statType)
+                .toString();
+    }
+}
diff --git a/src/com/android/settings/suggestions/SuggestionFeaturizer.java b/src/com/android/settings/suggestions/SuggestionFeaturizer.java
new file mode 100644
index 0000000..eb43272
--- /dev/null
+++ b/src/com/android/settings/suggestions/SuggestionFeaturizer.java
@@ -0,0 +1,106 @@
+/*
+ * 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.suggestions;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * Creates a set of interaction features (i.e., metrics) to represent each setting suggestion. These
+ * features currently include normalized time from previous events (shown, dismissed and clicked)
+ * for any particular suggestion and also counts of these events. These features are used as signals
+ * to find the best ranking for suggestion items.
+ */
+public class SuggestionFeaturizer {
+
+    // Key of the features used for ranking.
+    public static final String FEATURE_IS_SHOWN = "is_shown";
+    public static final String FEATURE_IS_DISMISSED = "is_dismissed";
+    public static final String FEATURE_IS_CLICKED = "is_clicked";
+    public static final String FEATURE_TIME_FROM_LAST_SHOWN = "time_from_last_shown";
+    public static final String FEATURE_TIME_FROM_LAST_DISMISSED = "time_from_last_dismissed";
+    public static final String FEATURE_TIME_FROM_LAST_CLICKED = "time_from_last_clicked";
+    public static final String FEATURE_SHOWN_COUNT = "shown_count";
+    public static final String FEATURE_DISMISSED_COUNT = "dismissed_count";
+    public static final String FEATURE_CLICKED_COUNT = "clicked_count";
+
+    // The following numbers are estimated from histograms.
+    public static final double TIME_NORMALIZATION_FACTOR = 2e10;
+    public static final double COUNT_NORMALIZATION_FACTOR = 500;
+
+    private final EventStore mEventStore;
+
+    /**
+     * Constructor
+     *
+     * @param eventStore An instance of {@code EventStore} which maintains the recorded suggestion
+     * events.
+     */
+    public SuggestionFeaturizer(EventStore eventStore) {
+        mEventStore = eventStore;
+    }
+
+    /**
+     * Extracts the features for each package name.
+     *
+     * @param pkgNames: List of package names for which features are queried.
+     * @return A Map containing the features, keyed by the package names. Each map value contains
+     * another map with key-value pairs of the features.
+     */
+    public Map<String, Map<String, Double>> featurize(List<String> pkgNames) {
+        Map<String, Map<String, Double>> features = new HashMap<>();
+        Long curTimeMs = System.currentTimeMillis();
+        for (String pkgName : pkgNames) {
+            Map<String, Double> featureMap = new HashMap<>();
+            features.put(pkgName, featureMap);
+            Long lastShownTime = mEventStore
+                    .readMetric(pkgName, EventStore.EVENT_SHOWN, EventStore.METRIC_LAST_EVENT_TIME);
+            Long lastDismissedTime = mEventStore.readMetric(pkgName, EventStore.EVENT_DISMISSED,
+                    EventStore.METRIC_LAST_EVENT_TIME);
+            Long lastClickedTime = mEventStore.readMetric(pkgName, EventStore.EVENT_CLICKED,
+                    EventStore.METRIC_LAST_EVENT_TIME);
+            featureMap.put(FEATURE_IS_SHOWN, booleanToDouble(lastShownTime > 0));
+            featureMap.put(FEATURE_IS_DISMISSED, booleanToDouble(lastDismissedTime > 0));
+            featureMap.put(FEATURE_IS_CLICKED, booleanToDouble(lastClickedTime > 0));
+            featureMap.put(FEATURE_TIME_FROM_LAST_SHOWN,
+                    normalizedTimeDiff(curTimeMs, lastShownTime));
+            featureMap.put(FEATURE_TIME_FROM_LAST_DISMISSED,
+                    normalizedTimeDiff(curTimeMs, lastDismissedTime));
+            featureMap.put(FEATURE_TIME_FROM_LAST_CLICKED,
+                    normalizedTimeDiff(curTimeMs, lastClickedTime));
+            featureMap.put(FEATURE_SHOWN_COUNT, normalizedCount(mEventStore
+                    .readMetric(pkgName, EventStore.EVENT_SHOWN, EventStore.METRIC_COUNT)));
+            featureMap.put(FEATURE_DISMISSED_COUNT, normalizedCount(mEventStore
+                    .readMetric(pkgName, EventStore.EVENT_DISMISSED, EventStore.METRIC_COUNT)));
+            featureMap.put(FEATURE_CLICKED_COUNT, normalizedCount(mEventStore
+                    .readMetric(pkgName, EventStore.EVENT_CLICKED, EventStore.METRIC_COUNT)));
+        }
+        return features;
+    }
+
+    private static double booleanToDouble(boolean bool) {
+        return bool ? 1 : 0;
+    }
+
+    private static double normalizedTimeDiff(long curTimeMs, long preTimeMs) {
+        return Math.min(1, (curTimeMs - preTimeMs) / TIME_NORMALIZATION_FACTOR);
+    }
+
+    private static double normalizedCount(long count) {
+        return Math.min(1, count / COUNT_NORMALIZATION_FACTOR);
+    }
+}
diff --git a/src/com/android/settings/suggestions/SuggestionRanker.java b/src/com/android/settings/suggestions/SuggestionRanker.java
new file mode 100644
index 0000000..d0b9140
--- /dev/null
+++ b/src/com/android/settings/suggestions/SuggestionRanker.java
@@ -0,0 +1,83 @@
+/*
+ * 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.suggestions;
+
+import com.android.settingslib.drawer.Tile;
+
+import android.support.annotation.VisibleForTesting;
+
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+public class SuggestionRanker {
+
+    private static final String TAG = "SuggestionRanker";
+
+    // The following coefficients form a linear model, which mixes the features to obtain a
+    // relevance metric for ranking the suggestion items. This model is learned with off-line data
+    // by training a binary classifier to detect the clicked items. The higher the obtained
+    // relevance metric, the higher chance of getting clicked.
+    private static final Map<String, Double> WEIGHTS = new HashMap<String, Double>() {{
+        put(SuggestionFeaturizer.FEATURE_IS_SHOWN, 4.07506758256);
+        put(SuggestionFeaturizer.FEATURE_IS_DISMISSED, 2.11535473578);
+        put(SuggestionFeaturizer.FEATURE_IS_CLICKED, 1.21885461304);
+        put(SuggestionFeaturizer.FEATURE_TIME_FROM_LAST_SHOWN, 3.18832024515);
+        put(SuggestionFeaturizer.FEATURE_TIME_FROM_LAST_DISMISSED, 1.09902706645);
+        put(SuggestionFeaturizer.FEATURE_TIME_FROM_LAST_CLICKED, 0.262631082877);
+        put(SuggestionFeaturizer.FEATURE_SHOWN_COUNT, -0.918484103748 * 240);
+    }};
+
+    private final SuggestionFeaturizer mSuggestionFeaturizer;
+
+    private final Map<Tile, Double> relevanceMetrics;
+
+    Comparator<Tile> suggestionComparator = new Comparator<Tile>() {
+        @Override
+        public int compare(Tile suggestion1, Tile suggestion2) {
+            return relevanceMetrics.get(suggestion1) < relevanceMetrics.get(suggestion2) ? 1 : -1;
+        }
+    };
+
+    public SuggestionRanker(SuggestionFeaturizer suggestionFeaturizer) {
+        mSuggestionFeaturizer = suggestionFeaturizer;
+        relevanceMetrics = new HashMap<Tile, Double>();
+    }
+
+    public void rank(final List<Tile> suggestions, List<String> suggestionIds) {
+        relevanceMetrics.clear();
+        Map<String, Map<String, Double>> features = mSuggestionFeaturizer.featurize(suggestionIds);
+        for (int i = 0; i < suggestionIds.size(); i++) {
+            relevanceMetrics.put(suggestions.get(i),
+                    getRelevanceMetric(features.get(suggestionIds.get(i))));
+        }
+        Collections.sort(suggestions, suggestionComparator);
+    }
+
+    @VisibleForTesting
+    double getRelevanceMetric(Map<String, Double> features) {
+        double sum = 0;
+        if (features == null) {
+            return sum;
+        }
+        for (String feature : WEIGHTS.keySet()) {
+            sum += WEIGHTS.get(feature) * features.get(feature);
+        }
+        return sum;
+    }
+}
diff --git a/src/com/android/settings/survey/SurveyMixin.java b/src/com/android/settings/survey/SurveyMixin.java
index 74b7f10..72cd634 100644
--- a/src/com/android/settings/survey/SurveyMixin.java
+++ b/src/com/android/settings/survey/SurveyMixin.java
@@ -74,9 +74,8 @@
     public void onPause() {
         Activity activity = mFragment.getActivity();
         if (mReceiver != null && activity != null) {
-            SurveyFeatureProvider provider =
-                    FeatureFactory.getFactory(activity).getSurveyFeatureProvider(activity);
-            provider.unregisterReceiver(activity, mReceiver);
+            SurveyFeatureProvider.unregisterReceiver(activity, mReceiver);
+            mReceiver = null;
         }
     }
 }
diff --git a/src/com/android/settings/widget/LinkTextView.java b/src/com/android/settings/widget/LinkTextView.java
deleted file mode 100644
index e0fa723..0000000
--- a/src/com/android/settings/widget/LinkTextView.java
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- * Copyright (C) 2014 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.widget;
-
-import android.content.Context;
-import android.support.annotation.NonNull;
-import android.support.v13.view.ViewCompat;
-import android.text.Spanned;
-import android.text.method.LinkMovementMethod;
-import android.text.style.ClickableSpan;
-import android.util.AttributeSet;
-import android.view.MotionEvent;
-import android.widget.TextView;
-import com.android.setupwizardlib.util.LinkAccessibilityHelper;
-
-/**
- * Copied from setup wizard.
- */
-public class LinkTextView extends TextView {
-
-    private LinkAccessibilityHelper mAccessibilityHelper;
-
-    public LinkTextView(Context context) {
-        this(context, null);
-    }
-
-    public LinkTextView(Context context, AttributeSet attrs) {
-        super(context, attrs);
-        mAccessibilityHelper = new LinkAccessibilityHelper(this);
-        ViewCompat.setAccessibilityDelegate(this, mAccessibilityHelper);
-    }
-
-    @Override
-    public void setText(CharSequence text, BufferType type) {
-        super.setText(text, type);
-        if (text instanceof Spanned) {
-            final ClickableSpan[] spans =
-                    ((Spanned) text).getSpans(0, text.length(), ClickableSpan.class);
-            if (spans.length > 0) {
-                setMovementMethod(LinkMovementMethod.getInstance());
-            }
-        }
-    }
-
-    @Override
-    protected boolean dispatchHoverEvent(@NonNull MotionEvent event) {
-        if (mAccessibilityHelper.dispatchHoverEvent(event)) {
-            return true;
-        }
-        return super.dispatchHoverEvent(event);
-    }
-}
diff --git a/tests/robotests/src/com/android/settings/suggestions/EventStoreTest.java b/tests/robotests/src/com/android/settings/suggestions/EventStoreTest.java
new file mode 100644
index 0000000..9db11b8
--- /dev/null
+++ b/tests/robotests/src/com/android/settings/suggestions/EventStoreTest.java
@@ -0,0 +1,72 @@
+/*
+ * 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.suggestions;
+
+import com.android.settings.SettingsRobolectricTestRunner;
+import com.android.settings.TestConfig;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.annotation.Config;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import org.robolectric.RuntimeEnvironment;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+public class EventStoreTest {
+
+    private EventStore mEventStore;
+
+    @Before
+    public void setUp() {
+        mEventStore = new EventStore(RuntimeEnvironment.application);
+    }
+
+    @Test
+    public void testWriteRead() {
+        mEventStore.writeEvent("pkg", EventStore.EVENT_SHOWN);
+        long timeMs = System.currentTimeMillis();
+        assertThat(mEventStore.readMetric("pkg", EventStore.EVENT_SHOWN, EventStore.METRIC_COUNT))
+            .isEqualTo(1);
+        assertThat(Math.abs(timeMs - mEventStore
+            .readMetric("pkg", EventStore.EVENT_SHOWN, EventStore.METRIC_LAST_EVENT_TIME)) < 10000)
+            .isTrue();
+    }
+
+    @Test
+    public void testWriteRead_shouldHaveLatestValues() {
+        mEventStore.writeEvent("pkg", EventStore.EVENT_DISMISSED);
+        mEventStore.writeEvent("pkg", EventStore.EVENT_DISMISSED);
+        assertThat(
+            mEventStore.readMetric("pkg", EventStore.EVENT_DISMISSED, EventStore.METRIC_COUNT))
+            .isEqualTo(2);
+    }
+
+    @Test
+    public void testWriteRead_shouldReturnDefaultIfNotAvailable() {
+        assertThat(mEventStore.readMetric("pkg", EventStore.EVENT_SHOWN, EventStore.METRIC_COUNT))
+            .isEqualTo(0);
+        assertThat(
+            mEventStore
+                .readMetric("pkg", EventStore.EVENT_SHOWN, EventStore.METRIC_LAST_EVENT_TIME))
+            .isEqualTo(0);
+    }
+
+}
diff --git a/tests/robotests/src/com/android/settings/suggestions/SuggestionFeaturizerTest.java b/tests/robotests/src/com/android/settings/suggestions/SuggestionFeaturizerTest.java
new file mode 100644
index 0000000..3c5bd4f
--- /dev/null
+++ b/tests/robotests/src/com/android/settings/suggestions/SuggestionFeaturizerTest.java
@@ -0,0 +1,109 @@
+/*
+ * 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.suggestions;
+
+import java.util.Arrays;
+import java.util.Map;
+
+import com.android.settings.SettingsRobolectricTestRunner;
+import com.android.settings.TestConfig;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.annotation.Config;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import org.robolectric.RuntimeEnvironment;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+public class SuggestionFeaturizerTest {
+
+    private EventStore mEventStore;
+    private SuggestionFeaturizer mSuggestionFeaturizer;
+
+    @Before
+    public void setUp() {
+        mEventStore = new EventStore(RuntimeEnvironment.application);
+        mSuggestionFeaturizer = new SuggestionFeaturizer(mEventStore);
+    }
+
+    @Test
+    public void testFeaturize_singlePackage() {
+        mEventStore.writeEvent("pkg", EventStore.EVENT_DISMISSED);
+        mEventStore.writeEvent("pkg", EventStore.EVENT_SHOWN);
+        mEventStore.writeEvent("pkg", EventStore.EVENT_SHOWN);
+        Map<String, Double> features = mSuggestionFeaturizer.featurize(Arrays.asList("pkg"))
+                .get("pkg");
+        assertThat(features.get(SuggestionFeaturizer.FEATURE_IS_SHOWN)).isEqualTo(1.0);
+        assertThat(features.get(SuggestionFeaturizer.FEATURE_IS_DISMISSED)).isEqualTo(1.0);
+        assertThat(features.get(SuggestionFeaturizer.FEATURE_IS_CLICKED)).isEqualTo(0.0);
+
+        assertThat(features.get(SuggestionFeaturizer.FEATURE_TIME_FROM_LAST_SHOWN)).isLessThan(1.0);
+        assertThat(features.get(SuggestionFeaturizer.FEATURE_TIME_FROM_LAST_DISMISSED))
+                .isLessThan(1.0);
+        assertThat(features.get(SuggestionFeaturizer.FEATURE_TIME_FROM_LAST_CLICKED))
+                .isEqualTo(1.0);
+        assertThat(features.get(SuggestionFeaturizer.FEATURE_SHOWN_COUNT))
+                .isEqualTo(2.0 / SuggestionFeaturizer.COUNT_NORMALIZATION_FACTOR);
+        assertThat(features.get(SuggestionFeaturizer.FEATURE_DISMISSED_COUNT))
+                .isEqualTo(1.0 / SuggestionFeaturizer.COUNT_NORMALIZATION_FACTOR);
+        assertThat(features.get(SuggestionFeaturizer.FEATURE_CLICKED_COUNT)).isEqualTo(0.0);
+    }
+
+    @Test
+    public void testFeaturize_multiplePackages() {
+        mEventStore.writeEvent("pkg1", EventStore.EVENT_DISMISSED);
+        mEventStore.writeEvent("pkg2", EventStore.EVENT_SHOWN);
+        mEventStore.writeEvent("pkg1", EventStore.EVENT_SHOWN);
+        Map<String, Map<String, Double>> features = mSuggestionFeaturizer
+                .featurize(Arrays.asList("pkg1", "pkg2"));
+        Map<String, Double> features1 = features.get("pkg1");
+        Map<String, Double> features2 = features.get("pkg2");
+
+        assertThat(features1.get(SuggestionFeaturizer.FEATURE_IS_SHOWN)).isEqualTo(1.0);
+        assertThat(features1.get(SuggestionFeaturizer.FEATURE_IS_DISMISSED)).isEqualTo(1.0);
+        assertThat(features1.get(SuggestionFeaturizer.FEATURE_IS_CLICKED)).isEqualTo(0.0);
+        assertThat(features1.get(SuggestionFeaturizer.FEATURE_TIME_FROM_LAST_SHOWN))
+                .isLessThan(1.0);
+        assertThat(features1.get(SuggestionFeaturizer.FEATURE_TIME_FROM_LAST_DISMISSED))
+                .isLessThan(1.0);
+        assertThat(features1.get(SuggestionFeaturizer.FEATURE_TIME_FROM_LAST_CLICKED))
+                .isEqualTo(1.0);
+        assertThat(features1.get(SuggestionFeaturizer.FEATURE_SHOWN_COUNT))
+                .isEqualTo(1.0 / SuggestionFeaturizer.COUNT_NORMALIZATION_FACTOR);
+        assertThat(features1.get(SuggestionFeaturizer.FEATURE_DISMISSED_COUNT))
+                .isEqualTo(1.0 / SuggestionFeaturizer.COUNT_NORMALIZATION_FACTOR);
+        assertThat(features1.get(SuggestionFeaturizer.FEATURE_CLICKED_COUNT)).isEqualTo(0.0);
+
+        assertThat(features2.get(SuggestionFeaturizer.FEATURE_IS_SHOWN)).isEqualTo(1.0);
+        assertThat(features2.get(SuggestionFeaturizer.FEATURE_IS_DISMISSED)).isEqualTo(0.0);
+        assertThat(features2.get(SuggestionFeaturizer.FEATURE_IS_CLICKED)).isEqualTo(0.0);
+        assertThat(features2.get(SuggestionFeaturizer.FEATURE_TIME_FROM_LAST_SHOWN))
+                .isLessThan(1.0);
+        assertThat(features2.get(SuggestionFeaturizer.FEATURE_TIME_FROM_LAST_DISMISSED))
+                .isEqualTo(1.0);
+        assertThat(features2.get(SuggestionFeaturizer.FEATURE_TIME_FROM_LAST_CLICKED))
+                .isEqualTo(1.0);
+        assertThat(features2.get(SuggestionFeaturizer.FEATURE_SHOWN_COUNT))
+                .isEqualTo(1.0 / SuggestionFeaturizer.COUNT_NORMALIZATION_FACTOR);
+        assertThat(features2.get(SuggestionFeaturizer.FEATURE_DISMISSED_COUNT)).isEqualTo(0.0);
+        assertThat(features2.get(SuggestionFeaturizer.FEATURE_CLICKED_COUNT)).isEqualTo(0.0);
+    }
+}
diff --git a/tests/robotests/src/com/android/settings/suggestions/SuggestionRankerTest.java b/tests/robotests/src/com/android/settings/suggestions/SuggestionRankerTest.java
new file mode 100644
index 0000000..e1807a8
--- /dev/null
+++ b/tests/robotests/src/com/android/settings/suggestions/SuggestionRankerTest.java
@@ -0,0 +1,94 @@
+/*
+ * 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.suggestions;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import com.android.settings.SettingsRobolectricTestRunner;
+import com.android.settings.TestConfig;
+import com.android.settingslib.drawer.Tile;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.annotation.Config;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import org.robolectric.RuntimeEnvironment;
+
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+import static org.mockito.Mockito.same;
+import static org.mockito.Mockito.spy;
+
+@RunWith(SettingsRobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+public class SuggestionRankerTest {
+
+    @Mock
+    private SuggestionRanker mSuggestionRanker;
+    @Mock
+    private SuggestionFeaturizer mSuggestionFeaturizer;
+    private Map<String, Map<String, Double>> mFeatures;
+    private List<String> mPkgNames;
+    private List<Tile> mSuggestions;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        mPkgNames = Arrays.asList("pkg1", "pkg2", "pkg3");
+        mFeatures = new HashMap<String, Map<String, Double>>();
+        mFeatures.put("pkg1", new HashMap<String, Double>());
+        mFeatures.put("pkg2", new HashMap<String, Double>());
+        mFeatures.put("pkg3", new HashMap<String, Double>());
+        mSuggestions = new ArrayList<Tile>() {
+            {
+                add(new Tile());
+                add(new Tile());
+                add(new Tile());
+            }
+        };
+        mSuggestionFeaturizer = mock(SuggestionFeaturizer.class);
+        mSuggestionRanker = new SuggestionRanker(mSuggestionFeaturizer);
+        when(mSuggestionFeaturizer.featurize(mPkgNames)).thenReturn(mFeatures);
+        mSuggestionRanker = spy(mSuggestionRanker);
+        when(mSuggestionRanker.getRelevanceMetric(same(mFeatures.get("pkg1")))).thenReturn(0.9);
+        when(mSuggestionRanker.getRelevanceMetric(same(mFeatures.get("pkg2")))).thenReturn(0.1);
+        when(mSuggestionRanker.getRelevanceMetric(same(mFeatures.get("pkg3")))).thenReturn(0.5);
+    }
+
+    @Test
+    public void testRank() {
+        List<Tile> expectedOrderdList = new ArrayList<Tile>() {
+            {
+                add(mSuggestions.get(0)); // relevance = 0.9
+                add(mSuggestions.get(2)); // relevance = 0.5
+                add(mSuggestions.get(1)); // relevance = 0.1
+            }
+        };
+        mSuggestionRanker.rank(mSuggestions, mPkgNames);
+        assertThat(mSuggestions).isEqualTo(expectedOrderdList);
+    }
+}
+
diff --git a/tests/robotests/src/com/android/settings/survey/SurveyMixinTest.java b/tests/robotests/src/com/android/settings/survey/SurveyMixinTest.java
index 20c50ce..73fe09e 100644
--- a/tests/robotests/src/com/android/settings/survey/SurveyMixinTest.java
+++ b/tests/robotests/src/com/android/settings/survey/SurveyMixinTest.java
@@ -1,5 +1,6 @@
 package com.android.settings.survey;
 
+import static com.google.common.truth.Truth.assertThat;
 import static org.mockito.Matchers.any;
 import static org.mockito.Matchers.eq;
 import static org.mockito.Mockito.never;
@@ -11,11 +12,15 @@
 import android.app.Activity;
 import android.content.BroadcastReceiver;
 import android.content.Context;
+import android.content.IntentFilter;
+import android.support.v4.content.LocalBroadcastManager;
 import com.android.settings.SettingsRobolectricTestRunner;
 import com.android.settings.TestConfig;
 import com.android.settings.core.InstrumentedPreferenceFragment;
 import com.android.settings.overlay.SurveyFeatureProvider;
 import com.android.settings.testutils.FakeFeatureFactory;
+import java.util.ArrayList;
+import java.util.HashMap;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -24,6 +29,7 @@
 import org.robolectric.Robolectric;
 import org.robolectric.RuntimeEnvironment;
 import org.robolectric.annotation.Config;
+import org.robolectric.util.ReflectionHelpers;
 
 @RunWith(SettingsRobolectricTestRunner.class)
 @Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
@@ -102,7 +108,7 @@
     }
 
     @Test
-    public void onPause_removesReceiverWhenInstantiated() {
+    public void onPause_removesReceiverIfPreviouslySet() {
         // Pretend there is a survey in memory
         when(mProvider.getSurveyExpirationDate(any(), any())).thenReturn(-1L);
 
@@ -110,12 +116,16 @@
         Activity temp = Robolectric.setupActivity(Activity.class);
         when(mFragment.getActivity()).thenReturn(temp);
         when(mProvider.createAndRegisterReceiver(any())).thenReturn(mReceiver);
+        LocalBroadcastManager manager = LocalBroadcastManager.getInstance(temp);
         SurveyMixin mixin = new SurveyMixin(mFragment, FAKE_KEY);
         mixin.onResume();
+        manager.registerReceiver(mReceiver, new IntentFilter());
         mixin.onPause();
 
         // Verify we remove the receiver
-        verify(mProvider, times(1)).unregisterReceiver(any(), any());
+        HashMap<BroadcastReceiver, ArrayList<IntentFilter>> map =
+                ReflectionHelpers.getField(manager, "mReceivers");
+        assertThat(map.containsKey(mReceiver)).isFalse();
     }
 
     @Test
@@ -129,15 +139,15 @@
         SurveyMixin mixin = new SurveyMixin(mFragment, FAKE_KEY);
         mixin.onPause();
 
-        // Verify we do nothing
-        verify(mProvider, never()).unregisterReceiver(any(), any());
+        // Verify we do nothing;
+        verify(mProvider, never()).showSurveyIfAvailable(any(), any());
 
         // pretend the activity died before onPause
         when(mFragment.getActivity()).thenReturn(null);
         mixin.onPause();
 
         // Verify we do nothing
-        verify(mProvider, never()).unregisterReceiver(any(), any());
+        verify(mProvider, never()).showSurveyIfAvailable(any(), any());
     }
 
 }