How to Display Navigation Drawer in all activities?

Question

I have a Navigation Drawer which should appear in all my activities.

I saw many questions similar to this & found a solution like Extending the Main

Answer 1

in onCreate of TutorialActivity don't call setContentView instead do this:

@Override
protected void onCreate(Bundle savedInstanceState)
{
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    LayoutInflater inflater = (LayoutInflater) this
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    View contentView = inflater.inflate(R.layout.help, null, false);
    mDrawer.addView(contentView, 0); 
}

make mDrawer in MainActivity protected. and in R.layout.activity_main_drawer just keep drawer tag and the element with gravity left(or right).