NavigationView get/find header layout

Question

In my NavigationView I have a header layout with id \'viewId\' with active buttons. To setup those buttons, I do the following in activity\'s onPostCreate:

Answer 1

Now with the 23.1.1 release of the design support library, you can use

NavigationView navigationView = (NavigationView) findViewById(R.id.your_nav_view_id);
View header = navigationView.getHeaderView(0)
TextView text = (TextView) header.findViewById(R.id.textView);