title: How to animate the hamburger icon to back arrow while using design support library?
body: <p>Hello I am using the most recent support library from android called design support library and using the NavigationView in it for shwing drawer. But the problem is when I am openning my drawer my hamburger icon doesnt spins into a back arrow icon, it always remains the same, but I can remember that when I used the drawerlayout without the support library it spinned automatically, here is my last try that I did:</p>
  
  <pre><code>dl.setDrawerListener(new ActionBarDrawerToggle(this, dl, tb, R.string.navigation_drawer_open, R.string.navigation_drawer_close) {
              @Override
              public void onDrawerOpened(View drawerView) {
                  super.onDrawerOpened(drawerView);
  
                  supportInvalidateOptionsMenu();
              }
  
              @Override
              public void onDrawerClosed(View drawerView) {
                  super.onDrawerClosed(drawerView);
                  supportInvalidateOptionsMenu();
              }
  
              @Override
              public void onDrawerSlide(View drawerView, float slideOffset) {
                  super.onDrawerSlide(drawerView, slideOffset);
  
              }
          });
  </code></pre>
  
  <p>but nothing happeded, is there any short trick or tips that I am mising here?</p>