ActionBarDrawerToggle icon missing when using AppCompat v22

Question

I'm using Appcompat v22 to use tinted style for AutoCompleteTextView. However, as soon as I changed my build.gradle from this:

compile 'com.android.support:support-v4:21.0.3' compile 'com.android.support:appcompat-v7:21.0.3' compile 'com.android.support:cardview-v7:21.0.2' compile 'com.android.support:recyclerview-v7:21.0.2' 

to this:

compile 'com.android.support:support-v4:22.0.0' compile 'com.android.support:appcompat-v7:22.0.0' compile 'com.android.support:gridlayout-v7:22.0.0' compile 'com.android.support:cardview-v7:22.0.0' 

The ActionBarDrawerToggle Icon (Hamburger icon) goes missing. (However, if I slide from left, the drawer gets revealed)

Inside onCreate():

    mDrawerLayout = (BBDrawerLayout) findViewById(R.id.drawer_layout);     mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);     mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,             R.string.drawer_open, R.string.drawer_close) {         @Override         public void onDrawerClosed(View drawerView) {             super.onDrawerClosed(drawerView);             toolbar.setTitle(mTitle);             invalidateOptionsMenu();         }          @Override         public void onDrawerOpened(View drawerView) {             super.onDrawerOpened(drawerView);             trackEvent(TrackingAware.MENU_SHOWN, null);             toolbar.setTitle(mDrawerTitle);             invalidateOptionsMenu();         }     };      mDrawerLayout.setDrawerListener(mDrawerToggle); 

Have also called syncState()

@Override protected void onPostCreate(Bundle savedInstanceState) {     super.onPostCreate(savedInstanceState);     if (mDrawerToggle != null) {         mDrawerToggle.syncState();     } }  @Override public void onConfigurationChanged(Configuration newConfig) {     super.onConfigurationChanged(newConfig);     if (mDrawerToggle != null) {         mDrawerToggle.onConfigurationChanged(newConfig);     } } 

If I downgrade the appcompat version back to 21.0.3, everything starts to work.

Answer 1

The relevant part is in the last line of code, I have them in my Activity.onCreate(..) method:

    _drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, 0, 0);     drawerLayout.setDrawerListener(_drawerToggle);     getSupportActionBar().setDisplayHomeAsUpEnabled(true); 

As I remember that line is documented too but in appcompat v21 they were ignored (or at least the default was different..)

Answer 2

For those encountering the same problem as Dapp (toggle showing back arrow instead of hamburger icon), this is most likely because you're missing a drawerToggle.syncState() in your Activity.

To be more specific, you have to override the onPostCreate() method like this :

@Override protected void onPostCreate(Bundle savedInstanceState) {     super.onPostCreate(savedInstanceState);     drawerToggle.syncState(); } 

This isn't the only method that needs to be overriden. See this post by jpardogo for more details.