how to remove shadow below actionbar with AppCompat.Light.NoActionBar?

Question

I tried to remove the shadow below the toolbar with the Theme.AppCompat.Light.NoActionBar, using every recommendation of people who have ever answer it before, but no one wo

Answer 1

Just use after the super.onCreate(savedInstanceState);

if(getSupportActionBar() != null)
{
   getSupportActionBar().setElevation(0);
}