antew

public LogoutDialogFragment() {};

antew

@Override
public void onAttach(Activity activity) {
    super.onAttach(activity);
    if (activity instanceof LogoutDialogListener) {
        listener = (LogoutDialogListener) activity;
    } else {
        throw new RuntimeException("The Activity must " +
                "implement the LogoutDialogListener interface!");
    }
}

antew

public class LogoutDialogFragment extends DialogFragment implements
         OnClickListener {

     // Used to communicate the result back to the Activity
     private LogoutDialogListener listener;

antew

/**
 * Interface for Activities to implement to receive the result
 */
public interface LogoutDialogListener {

    public void performLogout();
    public void cancelLogout();
    
}