Following the answer in this question i have replaced ActionBarDrawerToggle of support v4 library that in latest update(rev 21) has been deprecated with the la
ActionBarDrawerToggle v7 to work properly you need to extends your Activity class from android.support.v7.app.ActionBarActivityActionBarActivity v7 must be used with Theme.AppCompat theme from the appcompat-v7:21 support library.ActionBar to ToolBar, don't add - false
when extending Theme.AppCompat. Doing so will make your ActionBarActivity have no default ActionBar decor, and getSupportActionBar will return null. You'll need to provide your own ToolBar and call setSupportActionBar first to make getSupportActionBar work.