// Get handles for the activity views.
final FrameLayout rootFrameLayout = findViewById(R.id.root_framelayout);
final DrawerLayout drawerLayout = findViewById(R.id.drawerlayout);
// Get handles for the activity views.
final FrameLayout rootFrameLayout = findViewById(R.id.root_framelayout);
final DrawerLayout drawerLayout = findViewById(R.id.drawerlayout);