How to implement OnFragmentInteractionListener

Question

I have a wizard generated app with navigation drawer in android studio 0.8.2

I have created a fragment and added it with newInstance() and I get this error:

Answer 1

OnFragmentInteractionListener is the default implementation for handling fragment to activity communication. This can be implemented based on your needs. Suppose if you need a function in your activity to be executed during a particular action within your fragment, you may make use of this callback method. If you don't need to have this interaction between your hosting activity and fragment, you may remove this implementation.

In short you should implement the listener in your fragment hosting activity if you need the fragment-activity interaction like this

public class MainActivity extends Activity implements 
YourFragment.OnFragmentInteractionListener {..}

and your fragment should have it defined like this

public interface OnFragmentInteractionListener {
    // TODO: Update argument type and name
    void onFragmentInteraction(Uri uri);
}

also provide definition for void onFragmentInteraction(Uri uri); in your activity

or else just remove the listener initialisation from your fragment's onAttach if you dont have any fragment-activity interaction