How to fix getActionBar method may produce java.lang.NullPointerException

Question

I am using a toolbar as my actionbar in an activity. I am trying to add the method getActionBar().setDisplayHomeAsUpEnabled(true); to the Activity.java file fo

Answer 1

If you are importing

android.app.ActionBar 

you have to use getActionBar()

and if you are importing

android.support.v7.app.ActionBar

use getSupportActionBar()