Navigation Drawer Toggle Not Working

This question might have been asked many times, but none of the solutions are working for me. I have an activity that implements navigation drawer but the drawer toggle button is n

Solution 1:

I did followings:

@OverridepublicbooleanonOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will// automatically handle clicks on the Home/Up button, so long// as you specify a parent activity in AndroidManifest.xml.intid= item.getItemId();


    //noinspection SimplifiableIfStatementif (id == R.id.action_settings) {
        returntrue;
    } else {
        DrawerLayoutdrawer= (DrawerLayout) findViewById(R.id.drawer_layout);

        if (drawer.isDrawerOpen(GravityCompat.START)) {
            drawer.closeDrawer(GravityCompat.START);
        } else {
            drawer.openDrawer(GravityCompat.START);
        }
    }



    returnsuper.onOptionsItemSelected(item);
}

and it works OK.

R.id.driver_layout - is my Layout in XML.