public void onAttach(Activity activity) {
onAttach(activity);
// This makes sure that the container activity has implemented
// the callback interface. If not, it throws an exception
try {
mListener = (AdapterListener) activity;
} catch (Exception e) {
throw new Exception(activity.ToString()
+ " must implement OnHeadlineSelectedListener");
}
}
/// <summary>
/// Make sure the activity has implemented OnFragmentUpdateListener
/// </summary>
/// <param name='activity'>
/// Our activity
/// </param>
public override void OnAttach(Activity activity)
{
base.OnAttach(activity);
try
{
mCallback = activity as OnFragmentUpdateListener;
}
catch(InvalidCastException ex)
{
throw new InvalidCastException(activity.ToString() + " must implement OnFragmentUpdateListener");
}
}