What is navigation drawer in Android?
The navigation drawer is a UI panel that shows your app's main navigation menu. The drawer appears when the user touches the drawer icon in the app bar or when the user swipes a finger from the left edge of the screen.
How to use navigation drawer in Android?
The user can view the navigation drawer when the user swipes a finger from the left edge of the activity. They can also find it from the home activity by tapping the app icon in the action bar. The drawer icon is displayed on all top-level destinations that use a DrawerLayout.