Trying to add a fragment to my fragment container FrameLayout

Question

I have created an xml file called editor.xml which contains a FrameLayout. In my main activity I am trying to add my custom fragment to my FrameLayout.

The error I r

Answer 1

You forgot to commit() your transaction.

Answer 2

add commit() like this

 getSupportFragmentManager().beginTransaction().add(R.id.fragment_container, firstFrag).commit();

Answer 3

You also forgot to call the addtoBackStack() method, otherwise your app closes when you hit the back button.