ActionBarDrawerToggle with AppCompatActivity and Toolbar Back button with Fragments

Question

I am using the ActionBarDrawerToggle with NavigationView. My content is displayed using fragments.

I am following this stackoverflow question to get the back button pres

Answer 1

Remove this line

 if (mDrawerToggle.onOptionsItemSelected(item)) {
        return true;
    }

from onOptionsItemSelected() so it will look like this

@Override
public boolean onOptionsItemSelected(MenuItem item) {

switch (item.getItemId()) {
    case android.R.id.home:
        // doesn't reach here ever.
        return true;
    case R.id.action_x:
        // do something
        return true;
    case R.id.action_y:
        // do something
        return true;
    default:
        return super.onOptionsItemSelected(item);
}
}