View difference between Paste ID: 7Ughhn5D and PMhQGYsK

 //////////////////////////////////////////////
 // MainActivity (simplified class)
 //////////////////////////////////////////////
 
 public class MainActivity extends ActionBarActivity {
 
     private NavigationDrawerFragment mNavigationDrawerFragment;
 
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
 
         mNavigationDrawerFragment = (NavigationDrawerFragment)
                 getSupportFragmentManager().findFragmentById(R.id.navigation_drawer);
         mTitle = getTitle();
 
         // Set up the drawer.
         mNavigationDrawerFragment.setUp(
                 R.id.navigation_drawer,
                 (DrawerLayout) findViewById(R.id.drawer_layout));
 
         // Show content for the first menu item
         // when the app launches.
         if (savedInstanceState == null) {
             showContentForNavigationDrawerItem(0);
         }
     }
 
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
 //        ActionBarDrawerToggle drawerToggle = mNavigationDrawerFragment.getDrawerToggle();
 //        if (drawerToggle.isDrawerIndicatorEnabled() &&
 //                drawerToggle.onOptionsItemSelected(item)) {
 //            return true;
 //        }
         switch (item.getItemId()) {
             case android.R.id.home:
                 FragmentManager fragmentManager = getSupportFragmentManager();
                 fragmentManager.popBackStack();
                 fragmentManager.executePendingTransactions();
                 mNavigationDrawerFragment.toggleDrawerIndicator();
                 return true;
             default:
                 return super.onOptionsItemSelected(item);
         }
     }
 
     @Override
     public void onBackPressed() {
         FragmentManager fragmentManager = getSupportFragmentManager();
         fragmentManager.executePendingTransactions();
         if (fragmentManager.getBackStackEntryCount() < 1) {
             super.onBackPressed();
         } else {
             fragmentManager.executePendingTransactions();
             fragmentManager.popBackStack();
             fragmentManager.executePendingTransactions();
             mNavigationDrawerFragment.toggleDrawerIndicator();
         }
     }
 
 }
 
 //////////////////////////////////////////////
 // NavigationDrawerFragment (simplified class)
 //////////////////////////////////////////////
 
 public class NavigationDrawerFragment extends Fragment {
 
     private static final String STATE_SELECTED_POSITION = "selected_navigation_drawer_position";
 
     private ActionBarDrawerToggle mDrawerToggle;
 
     private DrawerLayout mDrawerLayout;
     private ListView mDrawerListView;
     private View mFragmentContainerView;
 
     private int mCurrentSelectedPosition = 0;
     private boolean mFromSavedInstanceState;
     private boolean mUserLearnedDrawer;
 
     public NavigationDrawerFragment() {
     }
 
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        Injector.inject(this);
+
         getFragmentManager().addOnBackStackChangedListener(new FragmentManager.OnBackStackChangedListener() {
             @Override
             public void onBackStackChanged() {
                 toggleDrawerIndicator();
             }
         });
         mUserLearnedDrawer = mPreferenceHelper.restoreUserLearnedDrawer();
 
         if (savedInstanceState != null) {
             mCurrentSelectedPosition = savedInstanceState.getInt(STATE_SELECTED_POSITION);
             mFromSavedInstanceState = true;
         }
     }
 
     public void toggleDrawerIndicator() {
         int backStackCount = getFragmentManager().getBackStackEntryCount();
         boolean enableIndicator = backStackCount == 0;
         mDrawerToggle.setDrawerIndicatorEnabled(enableIndicator);
     }
 
     @Override
     public void onActivityCreated(Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
         setHasOptionsMenu(true);
     }
 
     public boolean isDrawerOpen() {
         return mDrawerLayout != null && mDrawerLayout.isDrawerOpen(mFragmentContainerView);
     }
 
     public void setUp(int fragmentId, DrawerLayout drawerLayout) {
         mFragmentContainerView = getActivity().findViewById(fragmentId);
         mDrawerLayout = drawerLayout;
         mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);
 
         ActionBar actionBar = getActionBar();
         actionBar.setDisplayHomeAsUpEnabled(true);
         actionBar.setHomeButtonEnabled(true);
 
         mDrawerToggle = new ActionBarDrawerToggle(
                 getActivity(),                    /* host Activity */
                 mDrawerLayout,                    /* DrawerLayout object */
                 R.drawable.ic_drawer,             /* nav drawer image to replace 'Up' caret */
                 R.string.navigation_drawer_open,  /* "open drawer" description for accessibility */
                 R.string.navigation_drawer_close  /* "close drawer" description for accessibility */
         ) {
             @Override
             public void onDrawerClosed(View drawerView) {
                 super.onDrawerClosed(drawerView);
                 if (!isAdded()) {
                     return;
                 }
                 toggleDrawerIndicator();
                 getActivity().supportInvalidateOptionsMenu(); // calls onPrepareOptionsMenu()
             }
 
             @Override
             public void onDrawerOpened(View drawerView) {
                 super.onDrawerOpened(drawerView);
                 if (!isAdded()) {
                     return;
                 }
                 mDrawerToggle.setDrawerIndicatorEnabled(true);
                 if (!mUserLearnedDrawer) {
                     // The user manually opened the drawer;
                     // store this flag to prevent auto-showing
                     // the navigation drawer automatically in the future.
                     mUserLearnedDrawer = true;
                     mPreferenceHelper.storeUserLearnedDrawer(true);
                 }
                 getActivity().supportInvalidateOptionsMenu(); // calls onPrepareOptionsMenu()
             }
         };
 
         // If the user hasn't 'learned' about the drawer, open it to introduce them to the drawer,
         // per the navigation drawer design guidelines.
         if (!mUserLearnedDrawer && !mFromSavedInstanceState) {
             mDrawerLayout.openDrawer(mFragmentContainerView);
         }
 
         // Defer code dependent on restoration of previous instance state.
         mDrawerLayout.post(new Runnable() {
             @Override
             public void run() {
                 mDrawerToggle.syncState();
             }
         });
 
         mDrawerLayout.setDrawerListener(mDrawerToggle);
     }
 
 }