How we can implement Two Level Menu using Android Navigation Drawer. It should work like this
1. When User will open Navigation Drawer, Patent Menu will be visible. (Screen Shot 1)
2. Once User click on specific item. Sub-Menu associated with that item will be open with Sliding in effect [Parent Menu will slide left and Sub Menu will appear from right sliding in] with an option to go back. (Screen Shot 2)

I tried different solution like using ListItem visibility etc.