As the title suggests, my app uses a side menu using navigation drawer. I got inspired by this official google doc and its nav drawer can be toggled either by swipe from left to right or by clicking on modified home icon on top left of ActionBar.
When nav drawer is drawn, the drawer icon in Actionbar is replaced by back button which in change closes the drawer and returns actionbar to its original state.
But this is where I find problems. As in this different official google doc about material design it is clearly stated that drawer should be over actionbar covering it.
I checked e.g. gmail app uses the latter, i.e. drawer over ActionBar.
Should I follow guidelines #1 or #2?