Prevent failed dynamic index

In the original design, if a controller in page initializes
failed, then it will impact all the dynamic index mechanism.

In this change, we will only skip controllers in a specfic page.
All other pages which controllers initialize correctly should work
proerly.

Test: See correct dynamic result
Bug: 185325344
Change-Id: I4f959a23635739e1064318ccdddd6d97016dac23

src/com/android/settings/search/BaseSearchIndexProvider.java

@@ -128,8 +128,13 @@ public class BaseSearchIndexProvider implements Indexable.SearchIndexProvider {
     }
 
     public List<AbstractPreferenceController> getPreferenceControllers(Context context) {
-        final List<AbstractPreferenceController> controllersFromCode =
-                createPreferenceControllers(context);
+        List<AbstractPreferenceController> controllersFromCode = new ArrayList<>();
+        try {
+            controllersFromCode = createPreferenceControllers(context);
+        } catch (Exception e) {
+            Log.w(TAG, "Error initial controller");
+        }
+
         final List<SearchIndexableResource> res = getXmlResourcesToIndex(context, true);
         if (res == null || res.isEmpty()) {
             return controllersFromCode;