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/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);
 }