Settings search - Navigate user to exact page

- remove duplicate index preference
- default set searchable = false when the preference has fragment
- make some fragments indexable

Bug: 143057584
Test: robotest & manual

Change-Id: I4d64f6106d2f92f0a45e8c7e26388677f593f412

res/xml/accessibility_magnification_settings.xml

@@ -17,8 +17,7 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:settings="http://schemas.android.com/apk/res-auto"
     android:key="magnification_preference_screen_title"
-    android:title="@string/accessibility_screen_magnification_title"
+    android:title="@string/accessibility_screen_magnification_title">
-    settings:searchable="false">
     <Preference
         android:fragment="com.android.settings.accessibility.ToggleScreenMagnificationPreferenceFragment"
         android:key="screen_magnification_gestures_preference_screen"

res/xml/accessibility_notification_vibration_settings.xml

@@ -17,4 +17,5 @@
 
 <PreferenceScreen
     xmlns:android="http://schemas.android.com/apk/res/android"
+    android:key="accessibility_notification_vibration_screen"
     android:title="@string/accessibility_notification_vibration_title" />

res/xml/accessibility_ring_vibration_settings.xml

@@ -17,4 +17,5 @@
 
 <PreferenceScreen
     xmlns:android="http://schemas.android.com/apk/res/android"
+    android:key="accessibility_ring_vibration_screen"
     android:title="@string/accessibility_ring_vibration_title" />

res/xml/accessibility_shortcut_service_settings.xml

@@ -17,4 +17,5 @@
 
 <PreferenceScreen
     xmlns:android="http://schemas.android.com/apk/res/android"
+    android:key="accessibility_shortcut_service_screen"
     android:title="@string/accessibility_shortcut_service_title" />

res/xml/accessibility_shortcut_settings.xml

@@ -15,6 +15,7 @@
 -->
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
                   xmlns:settings="http://schemas.android.com/apk/res-auto"
+                  android:key="accessibility_shortcut_settings_screen"
                   android:title="@string/accessibility_global_gesture_preference_title" >
 
     <Preference

res/xml/accessibility_touch_vibration_settings.xml

@@ -17,4 +17,5 @@
 
 <PreferenceScreen
     xmlns:android="http://schemas.android.com/apk/res/android"
+    android:key="accessibility_touch_vibration_screen"
     android:title="@string/accessibility_touch_vibration_title" />

res/xml/app_and_notification.xml

@@ -79,6 +79,7 @@
         android:key="app_and_notif_cell_broadcast_settings"
         android:title="@string/cell_broadcast_settings"
         android:order="15"
+        settings:searchable="false"
         settings:useAdminDisabledSummary="true">
         <intent
             android:action="android.intent.action.MAIN"

res/xml/automatic_storage_management_settings.xml

@@ -16,6 +16,7 @@
 
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
         xmlns:settings="http://schemas.android.com/apk/res-auto"
+        android:key="automatic_storage_manager_screen"
         android:title="@string/automatic_storage_manager_settings" >
 
         <DropDownPreference

res/xml/battery_saver_schedule_settings.xml

@@ -18,6 +18,7 @@
 <PreferenceScreen
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:settings="http://schemas.android.com/apk/res-auto"
+    android:key="battery_saver_schedule_screen"
     android:title="@string/battery_saver_schedule_settings_title"
     settings:staticPreferenceLocation="append">
 </PreferenceScreen >

res/xml/bluetooth_pairing_detail.xml

@@ -17,6 +17,7 @@
 <PreferenceScreen
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:settings="http://schemas.android.com/apk/res-auto"
+    android:key="bluetooth_pairing_detail_screen"
     android:title="@string/bluetooth_pairing_pref_title">
 
     <Preference

res/xml/bug_report_handler_settings.xml

@@ -18,6 +18,7 @@
 <PreferenceScreen
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:settings="http://schemas.android.com/apk/res-auto"
+    android:key="bug_report_handler_screen"
     android:title="@string/bug_report_handler_title"
     settings:staticPreferenceLocation="append" >
 </PreferenceScreen>

res/xml/current_dream_settings.xml

@@ -17,4 +17,5 @@
 
 <PreferenceScreen
     xmlns:android="http://schemas.android.com/apk/res/android"
+    android:key="current_screensaver_screen"
     android:title="@string/screensaver_settings_current" />

res/xml/default_voice_settings.xml

@@ -17,4 +17,5 @@
 
 <PreferenceScreen
     xmlns:android="http://schemas.android.com/apk/res/android"
+    android:key="voice_input_settings_screen"
     android:title="@string/voice_input_settings_title" />

res/xml/enterprise_set_default_apps_settings.xml

@@ -17,7 +17,8 @@
 
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
                   xmlns:settings="http://schemas.android.com/apk/res-auto"
-                  android:key="enterprise_set_default_apps_settings">
+                  android:key="enterprise_set_default_apps_settings"
+                  android:title="@string/enterprise_privacy_enterprise_set_default_apps">
     <PreferenceCategory
             android:key="dashboard_tile_placeholder"/>
 </PreferenceScreen>

res/xml/network_scorer_picker_prefs.xml

@@ -17,5 +17,6 @@
 
 <PreferenceScreen
         xmlns:android="http://schemas.android.com/apk/res/android"
+        android:key="network_scorer_picker_screen"
         android:title="@string/network_scorer_picker_title">
 </PreferenceScreen>

res/xml/spellchecker_prefs.xml

@@ -16,6 +16,7 @@
 
 <PreferenceScreen
     xmlns:android="http://schemas.android.com/apk/res/android"
+    android:key="spellcheckers_screen"
     android:title="@string/spellcheckers_settings_title">
     <Preference
         android:key="spellchecker_language"

res/xml/tether_prefs.xml

@@ -18,6 +18,7 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:settings="http://schemas.android.com/apk/res-auto"
     android:key="tether_prefs_screen"
+    settings:keywords="@string/keywords_hotspot_tethering"
     android:title="@string/tether_settings_title_all">
 
     <com.android.settings.widget.FixedLineSummaryPreference

res/xml/usb_default_fragment.xml

@@ -16,6 +16,6 @@
   -->
 <PreferenceScreen
     xmlns:android="http://schemas.android.com/apk/res/android"
-    android:title="@string/usb_pref"
+    android:title="@string/usb_default_label"
     android:key="usb_default_fragment">
 </PreferenceScreen>

res/xml/vr_display_settings.xml

@@ -17,4 +17,5 @@
 
 <PreferenceScreen
     xmlns:android="http://schemas.android.com/apk/res/android"
+    android:key="display_vr_pref_screen"
     android:title="@string/display_vr_pref_title" />

res/xml/webview_app_settings.xml

@@ -17,4 +17,5 @@
 
 <PreferenceScreen
     xmlns:android="http://schemas.android.com/apk/res/android"
+    android:key="select_webview_provider_screen"
     android:title="@string/select_webview_provider_title" />

res/xml/when_to_dream_settings.xml

@@ -17,4 +17,5 @@
 
 <PreferenceScreen
     xmlns:android="http://schemas.android.com/apk/res/android"
+    android:key="screensaver_when_to_dream_screen"
     android:title="@string/screensaver_settings_when_to_dream" />

res/xml/wifi_p2p_settings.xml

@@ -16,6 +16,7 @@
 
 <PreferenceScreen
     xmlns:android="http://schemas.android.com/apk/res/android"
+    android:key="wifi_p2p_settings_screen"
     android:title="@string/wifi_p2p_settings_title">
     <Preference
         android:key="p2p_this_device"

res/xml/wifi_tether_settings.xml

@@ -19,8 +19,7 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:settings="http://schemas.android.com/apk/res-auto"
     android:key="wifi_tether_settings_screen"
-    android:title="@string/wifi_hotspot_checkbox_text"
+    android:title="@string/wifi_hotspot_checkbox_text">
-    settings:searchable="false">
 
     <com.android.settings.wifi.tether.WifiTetherSsidPreference
         android:key="wifi_tether_network_name"

res/xml/zen_mode_settings.xml

@@ -19,8 +19,7 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:settings="http://schemas.android.com/apk/res-auto"
     android:key="zen_mode_settings"
-    android:title="@string/zen_mode_settings_title"
+    android:title="@string/zen_mode_settings_title">
-    settings:searchable="false">
 
     <PreferenceCategory
         android:key="zen_mode_settings_category_behavior"

src/com/android/settings/accessibility/AccessibilityShortcutPreferenceFragment.java

@@ -34,10 +34,10 @@ import androidx.preference.SwitchPreference;
 
 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.settings.widget.SwitchBar;
 import com.android.settingslib.accessibility.AccessibilityUtils;
+import com.android.settingslib.search.Indexable;
 import com.android.settingslib.search.SearchIndexable;
 
 /**
@@ -201,11 +201,5 @@ public class AccessibilityShortcutPreferenceFragment extends ToggleFeaturePrefer
     }
 
     public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
-            new BaseSearchIndexProvider() {
+            new BaseSearchIndexProvider(R.xml.accessibility_shortcut_settings);
-                // This fragment is for details of the shortcut. Only the shortcut itself needs
-                // to be indexed.
-                protected boolean isPageSearchEnabled(Context context) {
-                    return false;
-                }
-            };
 }

src/com/android/settings/accessibility/NotificationVibrationPreferenceFragment.java

@@ -21,10 +21,13 @@ import android.os.Vibrator;
 import android.provider.Settings;
 
 import com.android.settings.R;
+import com.android.settings.search.BaseSearchIndexProvider;
+import com.android.settingslib.search.SearchIndexable;
 
 /**
  * Fragment for picking accessibility shortcut service
  */
+@SearchIndexable
 public class NotificationVibrationPreferenceFragment extends VibrationPreferenceFragment {
     @Override
     public int getMetricsCategory() {
@@ -59,4 +62,7 @@ public class NotificationVibrationPreferenceFragment extends VibrationPreference
         Vibrator vibrator = getContext().getSystemService(Vibrator.class);
         return vibrator.getDefaultNotificationVibrationIntensity();
     }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.accessibility_notification_vibration_settings);
 }

src/com/android/settings/accessibility/RingVibrationPreferenceFragment.java

@@ -21,10 +21,13 @@ import android.os.Vibrator;
 import android.provider.Settings;
 
 import com.android.settings.R;
+import com.android.settings.search.BaseSearchIndexProvider;
+import com.android.settingslib.search.SearchIndexable;
 
 /**
  * Fragment for picking accessibility shortcut service
  */
+@SearchIndexable
 public class RingVibrationPreferenceFragment extends VibrationPreferenceFragment {
     @Override
     public int getMetricsCategory() {
@@ -63,4 +66,7 @@ public class RingVibrationPreferenceFragment extends VibrationPreferenceFragment
         Vibrator vibrator = getContext().getSystemService(Vibrator.class);
         return vibrator.getDefaultRingVibrationIntensity();
     }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.accessibility_ring_vibration_settings);
 }

src/com/android/settings/accessibility/ShortcutServicePickerFragment.java

@@ -43,8 +43,10 @@ import com.android.internal.accessibility.AccessibilityShortcutController;
 import com.android.internal.accessibility.AccessibilityShortcutController.ToggleableFrameworkFeatureInfo;
 import com.android.settings.R;
 import com.android.settings.core.instrumentation.InstrumentedDialogFragment;
+import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settings.widget.RadioButtonPickerFragment;
 import com.android.settingslib.accessibility.AccessibilityUtils;
+import com.android.settingslib.search.SearchIndexable;
 import com.android.settingslib.widget.CandidateInfo;
 import com.android.settingslib.widget.RadioButtonPreference;
 
@@ -55,6 +57,7 @@ import java.util.Map;
 /**
  * Fragment for picking accessibility shortcut service
  */
+@SearchIndexable
 public class ShortcutServicePickerFragment extends RadioButtonPickerFragment {
 
     @Override
@@ -264,4 +267,7 @@ public class ShortcutServicePickerFragment extends RadioButtonPickerFragment {
             return mServiceInfo.getComponentName().flattenToString();
         }
     }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.accessibility_shortcut_service_settings);
 }

src/com/android/settings/accessibility/TouchVibrationPreferenceFragment.java

@@ -21,10 +21,13 @@ import android.os.Vibrator;
 import android.provider.Settings;
 
 import com.android.settings.R;
+import com.android.settings.search.BaseSearchIndexProvider;
+import com.android.settingslib.search.SearchIndexable;
 
 /**
  * Fragment for picking accessibility shortcut service
  */
+@SearchIndexable
 public class TouchVibrationPreferenceFragment extends VibrationPreferenceFragment {
     @Override
     public int getMetricsCategory() {
@@ -59,4 +62,7 @@ public class TouchVibrationPreferenceFragment extends VibrationPreferenceFragmen
     protected int getPreviewVibrationAudioAttributesUsage() {
         return AudioAttributes.USAGE_ASSISTANCE_SONIFICATION;
     }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.accessibility_touch_vibration_settings);
 }

src/com/android/settings/applications/ProcessStatsSummary.java

@@ -29,7 +29,13 @@ import com.android.settings.SummaryPreference;
 import com.android.settings.Utils;
 import com.android.settings.applications.ProcStatsData.MemInfo;
 import com.android.settings.core.SubSettingLauncher;
+import com.android.settings.search.BaseSearchIndexProvider;
+import com.android.settingslib.search.SearchIndexable;
 
+/**
+ * Settings screen to provide memory stats summary
+ */
+@SearchIndexable
 public class ProcessStatsSummary extends ProcessStatsBase implements OnPreferenceClickListener {
 
     private static final String KEY_STATUS_HEADER = "status_header";
@@ -125,4 +131,7 @@ public class ProcessStatsSummary extends ProcessStatsBase implements OnPreferenc
         }
         return false;
     }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.process_stats_summary);
 }

src/com/android/settings/applications/assist/DefaultVoiceInputPicker.java

@@ -27,11 +27,17 @@ import android.text.TextUtils;
 import com.android.internal.app.AssistUtils;
 import com.android.settings.R;
 import com.android.settings.applications.defaultapps.DefaultAppPickerFragment;
+import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settingslib.applications.DefaultAppInfo;
+import com.android.settingslib.search.SearchIndexable;
 
 import java.util.ArrayList;
 import java.util.List;
 
+/**
+ * Fragment for picking assistant voice input
+ */
+@SearchIndexable
 public class DefaultVoiceInputPicker extends DefaultAppPickerFragment {
 
     private VoiceInputHelper mHelper;
@@ -166,4 +172,7 @@ public class DefaultVoiceInputPicker extends DefaultAppPickerFragment {
             return new Intent(Intent.ACTION_MAIN).setComponent(mInfo.settings);
         }
     }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.default_voice_settings);
 }

src/com/android/settings/applications/assist/ManageAssist.java

@@ -37,7 +37,6 @@ import java.util.List;
 public class ManageAssist extends DashboardFragment {
 
     private static final String TAG = "ManageAssist";
-    private static final String KEY_ASSIST = "gesture_assist_application";
 
     @Override
     protected String getLogTag() {
@@ -85,12 +84,5 @@ public class ManageAssist extends DashboardFragment {
                         Context context) {
                     return buildPreferenceControllers(context, null /* lifecycle */);
                 }
-
-                @Override
-                public List<String> getNonIndexableKeys(Context context) {
-                    List<String> keys = super.getNonIndexableKeys(context);
-                    keys.add(KEY_ASSIST);
-                    return keys;
-                }
             };
 }

src/com/android/settings/bluetooth/BluetoothPairingDetail.java

@@ -29,14 +29,17 @@ import android.widget.Toast;
 import androidx.annotation.VisibleForTesting;
 
 import com.android.settings.R;
+import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settingslib.bluetooth.BluetoothDeviceFilter;
 import com.android.settingslib.bluetooth.CachedBluetoothDevice;
 import com.android.settingslib.search.Indexable;
+import com.android.settingslib.search.SearchIndexable;
 import com.android.settingslib.widget.FooterPreference;
 
 /**
  * BluetoothPairingDetail is a page to scan bluetooth devices and pair them.
  */
+@SearchIndexable
 public class BluetoothPairingDetail extends DeviceListPreferenceFragment implements
         Indexable {
     private static final String TAG = "BluetoothPairingDetail";
@@ -233,4 +236,7 @@ public class BluetoothPairingDetail extends DeviceListPreferenceFragment impleme
         Toast.makeText(getContext(), R.string.connected_device_bluetooth_turned_on_toast,
                 Toast.LENGTH_SHORT).show();
     }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.bluetooth_pairing_detail);
 }

src/com/android/settings/bugreporthandler/BugReportHandlerPicker.java

@@ -35,7 +35,9 @@ import androidx.preference.PreferenceScreen;
 import com.android.settings.R;
 import com.android.settings.Utils;
 import com.android.settings.applications.defaultapps.DefaultAppPickerFragment;
+import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settingslib.applications.DefaultAppInfo;
+import com.android.settingslib.search.SearchIndexable;
 import com.android.settingslib.widget.FooterPreference;
 
 import java.util.ArrayList;
@@ -44,6 +46,7 @@ import java.util.List;
 /**
  * Picker for BugReportHandler.
  */
+@SearchIndexable
 public class BugReportHandlerPicker extends DefaultAppPickerFragment {
     private static final String TAG = "BugReportHandlerPicker";
 
@@ -202,4 +205,7 @@ public class BugReportHandlerPicker extends DefaultAppPickerFragment {
             return super.loadLabel();
         }
     }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.bug_report_handler_settings);
 }

src/com/android/settings/connecteddevice/usb/UsbDefaultFragment.java

@@ -30,7 +30,9 @@ import androidx.preference.PreferenceScreen;
 
 import com.android.settings.R;
 import com.android.settings.Utils;
+import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settings.widget.RadioButtonPickerFragment;
+import com.android.settingslib.search.SearchIndexable;
 import com.android.settingslib.widget.CandidateInfo;
 import com.android.settingslib.widget.FooterPreference;
 import com.android.settingslib.widget.RadioButtonPreference;
@@ -42,6 +44,7 @@ import java.util.List;
 /**
  * Provides options for selecting the default USB mode.
  */
+@SearchIndexable
 public class UsbDefaultFragment extends RadioButtonPickerFragment {
     @VisibleForTesting
     UsbBackend mUsbBackend;
@@ -192,4 +195,7 @@ public class UsbDefaultFragment extends RadioButtonPickerFragment {
             }
         }
     }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.usb_default_fragment);
 }

src/com/android/settings/core/PreferenceXmlParserUtils.java

@@ -89,6 +89,7 @@ public class PreferenceXmlParserUtils {
         int FLAG_NEED_PREF_APPEND = 1 << 10;
         int FLAG_UNAVAILABLE_SLICE_SUBTITLE = 1 << 11;
         int FLAG_FOR_WORK = 1 << 12;
+        int FLAG_NEED_FRAGMENT = 1 << 13;
     }
 
     public static final String METADATA_PREF_TYPE = "type";
@@ -102,6 +103,7 @@ public class PreferenceXmlParserUtils {
     public static final String METADATA_APPEND = "staticPreferenceLocation";
     public static final String METADATA_UNAVAILABLE_SLICE_SUBTITLE = "unavailable_slice_subtitle";
     public static final String METADATA_FOR_WORK = "for_work";
+    public static final String METADATA_FRAGMENT = "fragment";
 
     private static final String ENTRIES_SEPARATOR = "|";
 
@@ -250,6 +252,10 @@ public class PreferenceXmlParserUtils {
                 preferenceMetadata.putBoolean(METADATA_FOR_WORK,
                         isForWork(preferenceAttributes));
             }
+            if (hasFlag(flags, MetadataFlag.FLAG_NEED_FRAGMENT)) {
+                preferenceMetadata.putString(METADATA_FRAGMENT,
+                        getFragment(preferenceAttributes));
+            }
             metadata.add(preferenceMetadata);
 
             preferenceAttributes.recycle();
@@ -340,4 +346,9 @@ public class PreferenceXmlParserUtils {
         return styledAttributes.getBoolean(
                 R.styleable.Preference_forWork, false);
     }
+
+    private static String getFragment(TypedArray styledAttributes) {
+        return styledAttributes.getString(
+                com.android.internal.R.styleable.Preference_fragment);
+    }
 }

src/com/android/settings/datetime/timezone/TimeZoneSettings.java

@@ -39,7 +39,9 @@ import com.android.settings.dashboard.DashboardFragment;
 import com.android.settings.datetime.timezone.model.FilteredCountryTimeZones;
 import com.android.settings.datetime.timezone.model.TimeZoneData;
 import com.android.settings.datetime.timezone.model.TimeZoneDataLoader;
+import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settingslib.core.AbstractPreferenceController;
+import com.android.settingslib.search.SearchIndexable;
 
 import java.util.ArrayList;
 import java.util.Date;
@@ -51,6 +53,7 @@ import java.util.Set;
 /**
  * The class displays a time zone picker either by regions or fixed offset time zones.
  */
+@SearchIndexable
 public class TimeZoneSettings extends DashboardFragment {
 
     private static final String TAG = "TimeZoneSettings";
@@ -387,4 +390,7 @@ public class TimeZoneSettings extends DashboardFragment {
     private String getLocaleRegionId() {
         return mLocale.getCountry().toUpperCase(Locale.US);
     }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.time_zone_prefs);
 }

src/com/android/settings/deletionhelper/AutomaticStorageManagerSettings.java

@@ -163,7 +163,7 @@ public class AutomaticStorageManagerSettings extends DashboardFragment
 
     /** For Search. */
     public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
-            new BaseSearchIndexProvider() {
+            new BaseSearchIndexProvider(R.xml.automatic_storage_management_settings) {
                 @Override
                 protected boolean isPageSearchEnabled(Context context) {
                     return false;

src/com/android/settings/development/compat/PlatformCompatDashboard.java

@@ -43,6 +43,8 @@ import com.android.internal.compat.IPlatformCompat;
 import com.android.settings.R;
 import com.android.settings.dashboard.DashboardFragment;
 import com.android.settings.development.AppPicker;
+import com.android.settings.search.BaseSearchIndexProvider;
+import com.android.settingslib.search.SearchIndexable;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -53,6 +55,7 @@ import java.util.TreeMap;
 /**
  * Dashboard for Platform Compat preferences.
  */
+@SearchIndexable
 public class PlatformCompatDashboard extends DashboardFragment {
     private static final String TAG = "PlatformCompatDashboard";
     private static final String COMPAT_APP = "compat_app";
@@ -273,4 +276,7 @@ public class PlatformCompatDashboard extends DashboardFragment {
             return true;
         }
     }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.platform_compat_settings);
 }

src/com/android/settings/deviceinfo/legal/ModuleLicensesDashboard.java

@@ -20,7 +20,13 @@ 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;
 
+/**
+ * Settings screen for mainline module licenses
+ */
+@SearchIndexable
 public class ModuleLicensesDashboard extends DashboardFragment {
     private static final String TAG = "ModuleLicensesDashboard";
 
@@ -43,4 +49,7 @@ public class ModuleLicensesDashboard extends DashboardFragment {
     public int getHelpResource() {
         return 0;
     }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.module_licenses);
 }

src/com/android/settings/display/VrDisplayPreferencePicker.java

@@ -23,12 +23,18 @@ import android.provider.Settings;
 import android.text.TextUtils;
 
 import com.android.settings.R;
+import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settings.widget.RadioButtonPickerFragment;
+import com.android.settingslib.search.SearchIndexable;
 import com.android.settingslib.widget.CandidateInfo;
 
 import java.util.ArrayList;
 import java.util.List;
 
+/**
+ * Settings picker screen to what display preferences are applied when device is in VR mode
+ */
+@SearchIndexable
 public class VrDisplayPreferencePicker extends RadioButtonPickerFragment {
 
     static final String PREF_KEY_PREFIX = "vr_display_pref_";
@@ -102,4 +108,7 @@ public class VrDisplayPreferencePicker extends RadioButtonPickerFragment {
             return PREF_KEY_PREFIX + value;
         }
     }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.vr_display_settings);
 }

src/com/android/settings/dream/CurrentDreamPicker.java

@@ -22,9 +22,11 @@ import android.content.Context;
 import android.graphics.drawable.Drawable;
 
 import com.android.settings.R;
+import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settings.widget.RadioButtonPickerFragment;
 import com.android.settingslib.dream.DreamBackend;
 import com.android.settingslib.dream.DreamBackend.DreamInfo;
+import com.android.settingslib.search.SearchIndexable;
 import com.android.settingslib.widget.CandidateInfo;
 
 import java.util.HashMap;
@@ -32,6 +34,10 @@ import java.util.List;
 import java.util.Map;
 import java.util.stream.Collectors;
 
+/**
+ * Settings picker screen for current screen saver
+ */
+@SearchIndexable
 public final class CurrentDreamPicker extends RadioButtonPickerFragment {
 
     private DreamBackend mBackend;
@@ -122,4 +128,7 @@ public final class CurrentDreamPicker extends RadioButtonPickerFragment {
             return key;
         }
     }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.current_dream_settings);
 }

src/com/android/settings/dream/WhenToDreamPicker.java

@@ -21,13 +21,19 @@ import android.content.Context;
 import android.graphics.drawable.Drawable;
 
 import com.android.settings.R;
+import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settings.widget.RadioButtonPickerFragment;
 import com.android.settingslib.dream.DreamBackend;
+import com.android.settingslib.search.SearchIndexable;
 import com.android.settingslib.widget.CandidateInfo;
 
 import java.util.ArrayList;
 import java.util.List;
 
+/**
+ * Settings screen for decide when to start screen saver
+ */
+@SearchIndexable
 public class WhenToDreamPicker extends RadioButtonPickerFragment {
 
     private static final String TAG = "WhenToDreamPicker";
@@ -120,4 +126,7 @@ public class WhenToDreamPicker extends RadioButtonPickerFragment {
             return key;
         }
     }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.when_to_dream_settings);
 }

src/com/android/settings/enterprise/EnterpriseSetDefaultAppsListFragment.java

@@ -21,7 +21,9 @@ import android.content.Context;
 
 import com.android.settings.R;
 import com.android.settings.dashboard.DashboardFragment;
+import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settingslib.core.AbstractPreferenceController;
+import com.android.settingslib.search.SearchIndexable;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -29,6 +31,7 @@ import java.util.List;
 /**
  * Fragment for displaying a list of default applications set by profile or device admin.
  */
+@SearchIndexable
 public class EnterpriseSetDefaultAppsListFragment extends DashboardFragment {
     static final String TAG = "EnterprisePrivacySettings";
 
@@ -56,4 +59,7 @@ public class EnterpriseSetDefaultAppsListFragment extends DashboardFragment {
         controllers.add(controller);
         return controllers;
     }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.enterprise_set_default_apps_settings);
 }

src/com/android/settings/fuelgauge/batterysaver/BatterySaverScheduleSettings.java

@@ -34,8 +34,10 @@ import androidx.annotation.VisibleForTesting;
 import androidx.preference.PreferenceScreen;
 
 import com.android.settings.R;
+import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settings.widget.RadioButtonPickerFragment;
 import com.android.settingslib.fuelgauge.BatterySaverUtils;
+import com.android.settingslib.search.SearchIndexable;
 import com.android.settingslib.widget.CandidateInfo;
 import com.android.settingslib.widget.RadioButtonPreference;
 
@@ -53,6 +55,7 @@ import java.util.List;
  * {@link BatterySaverScheduleSeekBarController} for the controller that manages user
  * interactions in this screen.
  */
+@SearchIndexable
 public class BatterySaverScheduleSettings extends RadioButtonPickerFragment {
 
     public BatterySaverScheduleRadioButtonsController mRadioButtonController;
@@ -207,4 +210,7 @@ public class BatterySaverScheduleSettings extends RadioButtonPickerFragment {
             return mSummary;
         }
     }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.battery_saver_schedule_settings);
 }

src/com/android/settings/gestures/GestureSettings.java

@@ -75,12 +75,5 @@ public class GestureSettings extends DashboardFragment {
                     sir.xmlResId = R.xml.gestures;
                     return Arrays.asList(sir);
                 }
-
-                @Override
-                protected boolean isPageSearchEnabled(Context context) {
-                    // All rows in this screen can lead to a different page, so suppress everything
-                    // from this page to remove duplicates.
-                    return false;
-                }
             };
 }

src/com/android/settings/inputmethod/SpellCheckersSettings.java

@@ -37,9 +37,15 @@ import androidx.preference.PreferenceScreen;
 import com.android.settings.R;
 import com.android.settings.SettingsActivity;
 import com.android.settings.SettingsPreferenceFragment;
+import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settings.widget.SwitchBar;
 import com.android.settings.widget.SwitchBar.OnSwitchChangeListener;
+import com.android.settingslib.search.SearchIndexable;
 
+/**
+ * Settings screen for spell checker
+ */
+@SearchIndexable
 public class SpellCheckersSettings extends SettingsPreferenceFragment
         implements OnSwitchChangeListener, OnPreferenceClickListener, OnPreferenceChangeListener {
     private static final String TAG = SpellCheckersSettings.class.getSimpleName();
@@ -274,4 +280,7 @@ public class SpellCheckersSettings extends SettingsPreferenceFragment
         }
         updatePreferenceScreen();
     }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.spellchecker_prefs);
 }

src/com/android/settings/network/NetworkScorerPicker.java

@@ -31,6 +31,8 @@ import androidx.preference.PreferenceScreen;
 
 import com.android.settings.R;
 import com.android.settings.core.InstrumentedPreferenceFragment;
+import com.android.settings.search.BaseSearchIndexProvider;
+import com.android.settingslib.search.SearchIndexable;
 import com.android.settingslib.widget.RadioButtonPreference;
 
 import java.util.List;
@@ -38,6 +40,7 @@ import java.util.List;
 /**
  * Fragment for choosing default network scorer.
  */
+@SearchIndexable
 public class NetworkScorerPicker extends InstrumentedPreferenceFragment implements
         RadioButtonPreference.OnClickListener {
 
@@ -142,4 +145,7 @@ public class NetworkScorerPicker extends InstrumentedPreferenceFragment implemen
     NetworkScoreManager createNetworkScorerManager(Context context) {
         return (NetworkScoreManager) context.getSystemService(Context.NETWORK_SCORE_SERVICE);
     }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.network_scorer_picker_prefs);
 }

src/com/android/settings/security/LockscreenDashboardFragment.java

@@ -57,9 +57,6 @@ public class LockscreenDashboardFragment extends DashboardFragment
     @VisibleForTesting
     static final String KEY_LOCK_SCREEN_NOTIFICATON_WORK_PROFILE =
             "security_setting_lock_screen_notif_work";
-    @VisibleForTesting
-    static final String KEY_ADD_USER_FROM_LOCK_SCREEN =
-            "security_lockscreen_add_users_when_locked";
 
 
     private AmbientDisplayConfiguration mConfig;
@@ -141,13 +138,6 @@ public class LockscreenDashboardFragment extends DashboardFragment
                     return controllers;
                 }
 
-                @Override
-                public List<String> getNonIndexableKeys(Context context) {
-                    final List<String> niks = super.getNonIndexableKeys(context);
-                    niks.add(KEY_ADD_USER_FROM_LOCK_SCREEN);
-                    return niks;
-                }
-
                 @Override
                 protected boolean isPageSearchEnabled(Context context) {
                     return new LockScreenPreferenceController(context, "anykey")

src/com/android/settings/webview/WebViewAppPicker.java

@@ -33,11 +33,17 @@ import androidx.annotation.VisibleForTesting;
 
 import com.android.settings.R;
 import com.android.settings.applications.defaultapps.DefaultAppPickerFragment;
+import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settingslib.applications.DefaultAppInfo;
+import com.android.settingslib.search.SearchIndexable;
 
 import java.util.ArrayList;
 import java.util.List;
 
+/**
+ * Settings picker screen to handle Web implementation
+ */
+@SearchIndexable
 public class WebViewAppPicker extends DefaultAppPickerFragment {
     private WebViewUpdateServiceWrapper mWebViewUpdateServiceWrapper;
 
@@ -164,4 +170,7 @@ public class WebViewAppPicker extends DefaultAppPickerFragment {
         }
         return null;
     }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.webview_app_settings);
 }

src/com/android/settings/wifi/p2p/WifiP2pSettings.java

@@ -56,14 +56,17 @@ import androidx.preference.PreferenceScreen;
 
 import com.android.settings.R;
 import com.android.settings.dashboard.DashboardFragment;
+import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settingslib.core.AbstractPreferenceController;
+import com.android.settingslib.search.SearchIndexable;
 
 import java.util.ArrayList;
 import java.util.List;
 
-/*
+/**
  * Displays Wi-fi p2p settings UI
  */
+@SearchIndexable
 public class WifiP2pSettings extends DashboardFragment
         implements PersistentGroupInfoListener, PeerListListener, DeviceInfoListener {
 
@@ -631,4 +634,7 @@ public class WifiP2pSettings extends DashboardFragment
             });
         }
     }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.wifi_p2p_settings);
 }

src/com/android/settings/wifi/savedaccesspoints/SavedAccessPointsWifiSettings.java

@@ -27,14 +27,17 @@ import androidx.preference.PreferenceScreen;
 import com.android.settings.R;
 import com.android.settings.core.SubSettingLauncher;
 import com.android.settings.dashboard.DashboardFragment;
+import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settings.wifi.WifiSettings;
 import com.android.settings.wifi.details.WifiNetworkDetailsFragment;
+import com.android.settingslib.search.SearchIndexable;
 import com.android.settingslib.wifi.AccessPoint;
 import com.android.settingslib.wifi.AccessPointPreference;
 
 /**
  * UI to manage saved networks/access points.
  */
+@SearchIndexable
 public class SavedAccessPointsWifiSettings extends DashboardFragment {
 
     private static final String TAG = "SavedAccessPoints";
@@ -130,4 +133,7 @@ public class SavedAccessPointsWifiSettings extends DashboardFragment {
             outState.putBundle(SAVE_DIALOG_ACCESS_POINT_STATE, mAccessPointSavedState);
         }
     }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.wifi_display_saved_access_points);
 }

src/com/android/settings/wifi/savedaccesspoints2/SavedAccessPointsWifiSettings2.java

@@ -37,8 +37,10 @@ import androidx.preference.PreferenceScreen;
 import com.android.settings.R;
 import com.android.settings.core.SubSettingLauncher;
 import com.android.settings.dashboard.DashboardFragment;
+import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settings.wifi.WifiSettings;
 import com.android.settings.wifi.details2.WifiNetworkDetailsFragment2;
+import com.android.settingslib.search.SearchIndexable;
 import com.android.wifitrackerlib.SavedNetworkTracker;
 
 import java.time.Clock;
@@ -47,6 +49,7 @@ import java.time.ZoneOffset;
 /**
  * UI to manage saved networks/access points.
  */
+@SearchIndexable
 public class SavedAccessPointsWifiSettings2 extends DashboardFragment
         implements SavedNetworkTracker.SavedNetworkTrackerCallback {
 
@@ -164,4 +167,7 @@ public class SavedAccessPointsWifiSettings2 extends DashboardFragment
         use(SubscribedAccessPointsPreferenceController2.class)
                 .displayPreference(screen, mSavedNetworkTracker.getSubscriptionWifiEntries());
     }
+
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider(R.xml.wifi_display_saved_access_points2);
 }

tests/robotests/assets/grandfather_fragment_not_searchable

@@ -0,0 +1,20 @@
+com.android.settings.backup.ToggleBackupSettingFragment
+com.android.settings.applications.RunningServices
+com.android.settings.applications.ConvertToFbe
+com.android.settings.applications.appops.BackgroundCheckSummary
+com.android.settings.fuelgauge.InactiveApps
+com.android.settings.ResetNetwork
+com.android.settings.MasterClear
+com.android.settings.applications.manageapplications.ManageApplications
+com.android.settings.enterprise.ApplicationListFragment$EnterpriseInstalledPackages
+com.android.settings.enterprise.ApplicationListFragment$AdminGrantedPermissionLocation
+com.android.settings.enterprise.ApplicationListFragment$AdminGrantedPermissionMicrophone
+com.android.settings.enterprise.ApplicationListFragment$AdminGrantedPermissionCamera
+com.android.settings.vpn2.VpnSettings
+com.android.settings.security.CryptKeeperSettings
+com.android.settings.TrustedCredentialsSettings
+com.android.settings.UserCredentialsSettings
+com.android.settings.applications.defaultapps.DefaultAutofillPicker
+com.android.phone.NetworkSelectSetting
+com.android.settings.accessibility.ToggleScreenMagnificationPreferenceFragment
+com.android.settings.nfc.AndroidBeam

tests/robotests/assets/grandfather_not_implementing_index_provider

@@ -17,7 +17,6 @@ com.android.settings.applications.AppLaunchSettings
 com.android.settings.applications.AppStorageSettings
 com.android.settings.applications.ConfirmConvertToFbe
 com.android.settings.applications.ProcessStatsDetail
-com.android.settings.applications.ProcessStatsSummary
 com.android.settings.applications.ProcessStatsUi
 com.android.settings.applications.RunningServices
 com.android.settings.applications.specialaccess.pictureinpicture.PictureInPictureDetails
@@ -26,7 +25,6 @@ com.android.settings.applications.UsageAccessDetails
 com.android.settings.backup.ToggleBackupSettingFragment
 com.android.settings.biometrics.fingerprint.FingerprintSettings$FingerprintSettingsFragment
 com.android.settings.bluetooth.BluetoothDeviceDetailsFragment
-com.android.settings.bluetooth.BluetoothPairingDetail
 com.android.settings.bluetooth.DevicePickerFragment
 com.android.settings.dashboard.profileselector.ProfileSelectAccountFragment
 com.android.settings.dashboard.profileselector.ProfileSelectManageApplications
@@ -34,24 +32,19 @@ com.android.settings.dashboard.profileselector.ProfileSelectLocationFragment
 com.android.settings.datausage.AppDataUsage
 com.android.settings.datausage.DataUsageList
 com.android.settings.datausage.DataUsageSummary
-com.android.settings.datetime.timezone.TimeZoneSettings
-com.android.settings.development.compat.PlatformCompatDashboard
 com.android.settings.deviceinfo.PrivateVolumeSettings
 com.android.settings.deviceinfo.PublicVolumeSettings
 com.android.settings.deviceinfo.StorageProfileFragment
-com.android.settings.deviceinfo.legal.ModuleLicensesDashboard
 com.android.settings.enterprise.ApplicationListFragment$AdminGrantedPermissionCamera
 com.android.settings.enterprise.ApplicationListFragment$AdminGrantedPermissionLocation
 com.android.settings.enterprise.ApplicationListFragment$AdminGrantedPermissionMicrophone
 com.android.settings.enterprise.ApplicationListFragment$EnterpriseInstalledPackages
-com.android.settings.enterprise.EnterpriseSetDefaultAppsListFragment
 com.android.settings.fuelgauge.AdvancedPowerUsageDetail
 com.android.settings.fuelgauge.InactiveApps
 com.android.settings.fuelgauge.RestrictedAppDetails
 com.android.settings.IccLockSettings
 com.android.settings.inputmethod.InputMethodAndSubtypeEnabler
 com.android.settings.inputmethod.KeyboardLayoutPickerFragment
-com.android.settings.inputmethod.SpellCheckersSettings
 com.android.settings.location.LocationPersonalSettings
 com.android.settings.location.LocationWorkProfileSettings
 com.android.settings.network.ApnEditor
@@ -88,10 +81,7 @@ com.android.settings.wifi.ChangeWifiStateDetails
 com.android.settings.wifi.calling.WifiCallingSettingsForSub
 com.android.settings.wifi.details.WifiNetworkDetailsFragment
 com.android.settings.wifi.dpp.WifiNetworkListFragment
-com.android.settings.wifi.p2p.WifiP2pSettings
-com.android.settings.wifi.savedaccesspoints.SavedAccessPointsWifiSettings
 com.android.settings.wifi.WifiInfo
 com.android.settings.applications.specialaccess.notificationaccess.NotificationAccessDetails
 com.android.settings.wifi.details2.WifiNetworkDetailsFragment2
-com.android.settings.wifi.savedaccesspoints2.SavedAccessPointsWifiSettings2
 com.android.settings.dashboard.profileselector.ProfileSelectRecentLocationRequestFragment

tests/robotests/src/com/android/settings/connecteddevice/ConnectedDeviceDashboardFragmentTest.java

@@ -81,7 +81,7 @@ public class ConnectedDeviceDashboardFragmentTest {
         final List<String> niks = ConnectedDeviceDashboardFragment.SEARCH_INDEX_DATA_PROVIDER
                 .getNonIndexableKeys(mContext);
 
-        assertThat(niks).containsExactly(KEY_CONNECTED_DEVICES, KEY_AVAILABLE_DEVICES,
+        assertThat(niks).containsAllOf(KEY_CONNECTED_DEVICES, KEY_AVAILABLE_DEVICES,
                 KEY_NEARBY_DEVICES, KEY_DISCOVERABLE_FOOTER);
     }
 

tests/robotests/src/com/android/settings/core/codeinspection/CodeInspectionTest.java

@@ -20,6 +20,7 @@ import static com.google.common.truth.Truth.assertThat;
 
 import com.android.settings.core.BasePreferenceControllerSignatureInspector;
 import com.android.settings.core.instrumentation.InstrumentableFragmentCodeInspector;
+import com.android.settings.search.FragmentSearchIndexableCodeInspector;
 import com.android.settings.search.SearchIndexProviderCodeInspector;
 import com.android.settings.slices.SliceControllerInXmlCodeInspector;
 
@@ -71,4 +72,9 @@ public class CodeInspectionTest {
     public void runLifecycleObserverInspection() {
         new LifecycleObserverCodeInspector(mClasses).run();
     }
+
+    @Test
+    public void runFragmentIndexableInspection() throws Exception {
+        new FragmentSearchIndexableCodeInspector(mClasses).run();
+    }
 }

tests/robotests/src/com/android/settings/search/FragmentSearchIndexableCodeInspector.java

@@ -0,0 +1,159 @@
+/*
+ * 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.search;
+
+import static com.android.settings.core.PreferenceXmlParserUtils.METADATA_FRAGMENT;
+
+import static com.google.common.truth.Truth.assertThat;
+import static com.google.common.truth.Truth.assertWithMessage;
+
+import android.content.Context;
+import android.os.Bundle;
+import android.provider.SearchIndexableResource;
+import android.text.TextUtils;
+
+import com.android.settings.core.InstrumentedPreferenceFragment;
+import com.android.settings.core.PreferenceXmlParserUtils;
+import com.android.settings.core.codeinspection.CodeInspector;
+import com.android.settings.overlay.FeatureFactory;
+import com.android.settingslib.search.Indexable;
+import com.android.settingslib.search.SearchIndexable;
+import com.android.settingslib.search.SearchIndexableData;
+
+import org.robolectric.RuntimeEnvironment;
+import org.xmlpull.v1.XmlPullParserException;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+/**
+ * {@link CodeInspector} to ensure preferences with fragments implement search components correctly.
+ */
+public class FragmentSearchIndexableCodeInspector extends CodeInspector {
+
+    private final String mErrorNonIndexFragments =
+            "The following fragments were used by 'android:fragment=Fragment_Class_Name' in "
+                    + "corresponding caller preference Xml. This preference won't be searchable, "
+                    + "the fragment should implement SearchIndexable for Settings Search. If it "
+                    + "should not be searchable, add the fragment's classname to "
+                    + "grandfather_fragment_not_searchable. Fragments:\n";
+
+    private final Context mContext;
+    private final List<String> mXmlDeclaredFragments = new ArrayList<>();
+    private final List<String> mGrandfatherNotSearchIndesable = new ArrayList<>();
+
+    public FragmentSearchIndexableCodeInspector(List<Class<?>> classes) throws Exception {
+        super(classes);
+        mContext = RuntimeEnvironment.application;
+
+        initDeclaredFragments();
+        initializeGrandfatherList(mGrandfatherNotSearchIndesable,
+                "grandfather_fragment_not_searchable");
+    }
+
+    @Override
+    public void run() {
+        for (Class<?> clazz : mClasses) {
+            if (!isConcreteSettingsClass(clazz)) {
+                // Only care about non-abstract classes.
+                continue;
+            }
+            if (!InstrumentedPreferenceFragment.class.isAssignableFrom(clazz)) {
+                // Only care about InstrumentedPreferenceFragment
+                continue;
+            }
+
+            try {
+                clazz.getField("SEARCH_INDEX_DATA_PROVIDER");
+                mXmlDeclaredFragments.remove(clazz.getName());
+                continue;
+            } catch (NoSuchFieldException e) {
+            }
+
+            if (SearchIndexable.class.isAssignableFrom(clazz)) {
+                mXmlDeclaredFragments.remove(clazz.getName());
+                continue;
+            }
+        }
+
+        mXmlDeclaredFragments.removeAll(mGrandfatherNotSearchIndesable);
+
+        final String missingFragmentError =
+                buildErrorMessage(mErrorNonIndexFragments, mXmlDeclaredFragments);
+
+        assertWithMessage(missingFragmentError).that(mXmlDeclaredFragments).isEmpty();
+    }
+
+    private String buildErrorMessage(String errorSummary, List<String> errorClasses) {
+        final StringBuilder error = new StringBuilder(errorSummary);
+        for (String c : errorClasses) {
+            error.append(c).append("\n");
+        }
+        return error.toString();
+    }
+
+    private void initDeclaredFragments() throws IOException, XmlPullParserException {
+        final List<Integer> xmlResources = getIndexableXml();
+        for (int xmlResId : xmlResources) {
+            final List<Bundle> metadata = PreferenceXmlParserUtils.extractMetadata(mContext,
+                    xmlResId, PreferenceXmlParserUtils.MetadataFlag.FLAG_NEED_FRAGMENT);
+            for (Bundle bundle : metadata) {
+                final String fragmentClassName = bundle.getString(METADATA_FRAGMENT);
+                if (TextUtils.isEmpty(fragmentClassName)) {
+                    continue;
+                }
+                if (!mXmlDeclaredFragments.contains(fragmentClassName)) {
+                    mXmlDeclaredFragments.add(fragmentClassName);
+                }
+            }
+        }
+        // We definitely have some fragments in xml, so assert not-empty here as a proxy to
+        // make sure the parser didn't fail
+        assertThat(mXmlDeclaredFragments).isNotEmpty();
+    }
+
+    private List<Integer> getIndexableXml() {
+        final List<Integer> xmlResSet = new ArrayList<>();
+
+        final Collection<SearchIndexableData> bundles = FeatureFactory.getFactory(
+                mContext).getSearchFeatureProvider().getSearchIndexableResources()
+                .getProviderValues();
+
+        for (SearchIndexableData bundle : bundles) {
+            Indexable.SearchIndexProvider provider = bundle.getSearchIndexProvider();
+
+            if (provider == null) {
+                continue;
+            }
+
+            List<SearchIndexableResource> resources = provider.getXmlResourcesToIndex(mContext,
+                    true);
+
+            if (resources == null) {
+                continue;
+            }
+
+            for (SearchIndexableResource resource : resources) {
+                // Add '0's anyway. It won't break the test.
+                xmlResSet.add(resource.xmlResId);
+            }
+        }
+        return xmlResSet;
+    }
+}