Fix a bug where options menu was not showing.

There were two issues that stopped the options menu from
showing properly. First, the SettingsPreferenceFragment did
not call its super class, causing the Lifecycle methods to
never be called. Second, the options menu was not being
invalidated which also stopped the Lifecycle methods from
being called.

Change-Id: I29f2fc105c7ecae7adaccb2e4643e48646398d8d
Fixes: 37255835
Test: Robotest

src/com/android/settings/SettingsPreferenceFragment.java

@@ -440,6 +440,7 @@ public abstract class SettingsPreferenceFragment extends InstrumentedPreferenceF
 
     @Override
     public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
+        super.onCreateOptionsMenu(menu, inflater);
         if (mHelpUri != null && getActivity() != null) {
             HelpUtils.prepareHelpMenuItem(getActivity(), menu, mHelpUri, getClass().getName());
         }

src/com/android/settings/deviceinfo/StorageDashboardFragment.java

@@ -16,6 +16,7 @@
 
 package com.android.settings.deviceinfo;
 
+import android.app.Activity;
 import android.app.LoaderManager;
 import android.content.Context;
 import android.content.Intent;
@@ -78,16 +79,15 @@ public class StorageDashboardFragment extends DashboardFragment
         super.onCreate(icicle);
 
         // Initialize the storage sizes that we can quickly calc.
-        final Context context = getActivity();
+        final Activity activity = getActivity();
-        StorageManager sm = context.getSystemService(StorageManager.class);
+        StorageManager sm = activity.getSystemService(StorageManager.class);
         mVolume = Utils.maybeInitializeVolume(sm, getArguments());
         if (mVolume == null) {
-            getActivity().finish();
+            activity.finish();
             return;
         }
 
-        mOptionMenuController = new PrivateVolumeOptionMenuController(
+        initializeOptionsMenu(activity);
-                context, mVolume, new PackageManagerWrapperImpl(context.getPackageManager()));
 
         final long sharedDataSize = mVolume.getPath().getTotalSpace();
         long totalSize = sm.getPrimaryStorageSize();
@@ -114,6 +114,15 @@ public class StorageDashboardFragment extends DashboardFragment
         }
     }
 
+    @VisibleForTesting
+    void initializeOptionsMenu(Activity activity) {
+        mOptionMenuController = new PrivateVolumeOptionMenuController(
+                activity, mVolume, new PackageManagerWrapperImpl(activity.getPackageManager()));
+        getLifecycle().addObserver(mOptionMenuController);
+        setHasOptionsMenu(true);
+        activity.invalidateOptionsMenu();
+    }
+
     @Override
     public void onResume() {
         super.onResume();
@@ -156,7 +165,6 @@ public class StorageDashboardFragment extends DashboardFragment
                 new AutomaticStorageManagementSwitchPreferenceController(
                         context, mMetricsFeatureProvider, getFragmentManager());
         getLifecycle().addObserver(asmController);
-        getLifecycle().addObserver(mOptionMenuController);
         controllers.add(asmController);
         return controllers;
     }

tests/robotests/src/com/android/settings/deviceinfo/StorageDashboardFragmentTest.java

@@ -18,6 +18,10 @@ package com.android.settings.deviceinfo;
 
 import static com.google.common.truth.Truth.assertThat;
 
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+
+import android.app.Activity;
 import android.os.storage.StorageManager;
 import android.provider.SearchIndexableResource;
 
@@ -55,6 +59,15 @@ public class StorageDashboardFragmentTest {
         assertThat(mFragment.getCategoryKey()).isEqualTo(CategoryKey.CATEGORY_STORAGE);
     }
 
+    @Test
+    public void test_initializeOptionsMenuInvalidatesExistingMenu() {
+        Activity activity = mock(Activity.class);
+
+        mFragment.initializeOptionsMenu(activity);
+
+        verify(activity).invalidateOptionsMenu();
+    }
+
     @Test
     public void testSearchIndexProvider_shouldIndexResource() {
         final List<SearchIndexableResource> indexRes =