Directly use BaseIndexableProvider

- Add function getXmlResourceId, Fragments don't need to write
xml resource id twice.
- Remove getPreferenceControllers from Indexable.java. Because it will
move to SettingsLib later for other apps which don't need this function

Bug: 135053028
Test: robolectric
Change-Id: I1e74519aecdea3dde64a5aea79f08d766dbc0003

src/com/android/settings/location/LocationSettings.java

@@ -20,7 +20,6 @@ import android.app.settings.SettingsEnums;
 import android.content.Context;
 import android.location.SettingInjectorService;
 import android.os.Bundle;
-import android.provider.SearchIndexableResource;
 
 import androidx.preference.Preference;
 import androidx.preference.PreferenceGroup;
@@ -29,7 +28,6 @@ import com.android.settings.R;
 import com.android.settings.SettingsActivity;
 import com.android.settings.dashboard.DashboardFragment;
 import com.android.settings.search.BaseSearchIndexProvider;
-import com.android.settings.search.Indexable;
 import com.android.settings.widget.SwitchBar;
 import com.android.settingslib.core.AbstractPreferenceController;
 import com.android.settingslib.core.lifecycle.Lifecycle;
@@ -37,7 +35,6 @@ import com.android.settingslib.location.RecentLocationApps;
 import com.android.settingslib.search.SearchIndexable;
 
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.List;
@@ -86,7 +83,7 @@ public class LocationSettings extends DashboardFragment {
 
     @Override
     protected int getPreferenceScreenResId() {
-        return R.xml.location_settings;
+        return SEARCH_INDEX_DATA_PROVIDER.getXmlResourceId();
     }
 
     @Override
@@ -128,7 +125,7 @@ public class LocationSettings extends DashboardFragment {
     /**
      * For Search.
      */
-    public static final Indexable.SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+    public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
             new BaseSearchIndexProvider(R.xml.location_settings) {
 
                 @Override