How to add “menu” indicator next to Action Bar's app icon?

Question

At least Gmail and Youtube Android apps use a side menu (navigation drawer?) that opens by swiping, or by clicking the app icon (home button):

Answer 1

Android-Developer and HpTerm helped me in the right rirection, by

1. Pointing out this is indeed NavigationDrawer specific (which I was already using as in Google's example)
2. Telling where to find the ic_drawer.png icon (→ Android Asset Studio)

Now, unfortunately, creating ActionBarDrawerToggle like below seems not to be enough. At least on my Nexus 7 (API 18) test device.

drawerToggle = new ActionBarDrawerToggle(this, 
                       drawerLayout, 
                       R.drawable.ic_navigation_drawer, 
                       R.string.side_menu_open, 
                       R.string.side_menu_closed) {
    // ...
};

Partial solution (API level 18+)

I found one way to make the indicator show up though: setHomeAsUpIndicator(). The downside: that method was added in API level 18.

@Override
protected void onCreate(Bundle savedInstanceState) {
    // ...
    getActionBar().setDisplayHomeAsUpEnabled(true); // also required
    if (Build.VERSION.SDK_INT >= 18) {
        getActionBar().setHomeAsUpIndicator(
            getResources().getDrawable(R.drawable.ic_navigation_drawer));
    }
}

So now the question remains: how to make this work (in my case) for API levels 14 through 17?

I verified on a 4.1.2 (API 16) device that the ic_drawer icon does not show up. With setDisplayHomeAsUpEnabled(true) I get the normal "home" icon (small arrow pointing left) and without it, the space left to my app icon remains blank.

Final solution

Got it working using the edited version of Android-Developer's answer.

Quite curiously, what was missing from my ActionBarDrawerToggle initialisation code was this:

   // Defer code dependent on restoration of previous instance state.
   drawerLayout.post(new Runnable() {
        @Override
        public void run() {
            mDrawerToggle.syncState();
        }
    });

With that included, calling setHomeAsUpIndicator() is not needed.