The small icon(indicator or 3 line) beside the logo, is not changing into a smaller one.
  --> this image is not animating, When I click the apps' logo the drawer is opened but the image is not animated into a more smaller image which is an indicator that the drawer is currently opened.
gABar.get().setDisplayHomeAsUpEnabled(true);
 mDrawerToggle = new ActionBarDrawerToggle(
        getActivity(),                  /* host Activity */
        mDrawerLayout.get(),         /* DrawerLayout object */
        R.drawable.ic_drawer2,  /* nav drawer image to replace 'Up' caret */
        R.string.drawer_open,  /* "open drawer" description for accessibility */
        R.string.drawer_close  /* "close drawer" description for accessibility */
        ) {
    @Override
    public void onDrawerClosed(View view) {
        getActivity().getActionBar().setTitle(mTitle);
        getActivity().invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
        Log.d("onDrawerClosed", "inside");
    }
    @Override
    public void onDrawerOpened(View drawerView) {
        getActivity().getActionBar().setTitle(mDrawerTitle);
        getActivity().invalidateOptionsMenu(); // creates call to onPrepareOptionsMenu()
    }
};
@Override
public boolean onOptionsItemSelected(MenuItem item) 
{
    int id = item.getItemId();
    Log.d("item ID : ", "onOptionsItemSelected Item ID" + id);
    if (id == android.R.id.home) {
        return true;
    } else {
        return super.onOptionsItemSelected(item);
    }
}