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

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);
 }