Android Firebase - setPersistenceEnabled(true) crashing the app

Question

So I was just trying out Firebase to update Toolbar label of activities from realtime database. I am getting the following error:

12-21 00:25:19.890 10295-10295/         


        

Answer 1

Remove the line mFirebaseInstance.setPersistenceEnabled(true); from your RegisterActivity class.

Make a custom class which should extend Application and write it there.

Example :

public class JustExample extends Application {

    @Override
    public void onCreate() {
        super.onCreate();

        if (!FirebaseApp.getApps(this).isEmpty())
        {
            FirebaseDatabase.getInstance().setPersistenceEnabled(true);
        }
    }
}