onAttach(Activity activity) what is this activity in a fragment inside another fragment

Question

It sounds me a confusing Question. What is the Activity Object in onAttach method of a fragment which is nested inside a parent Fragment?

I know I can communicate to the parent fragment by using getParentFragment() method.But I want to know if this activity object in the onAttach returns the FragmentActivity instance or not, so as to have a direct communication (by using interface callback) from a nested fragment to the FragmentActivity.

Sorry for my bad English. I tried my best to convey my thoughts.

Answer 1

Yes, the Activity object is your FragmentActivity. Check the docs here: http://developer.android.com/reference/android/app/Fragment.html#onAttach(android.app.Activity)

You can also get the activity by using getActivity() anywhere in your fragment (but be aware it only works after onActivityCreated has been called)

Answer 2

Yes it is the FragmentActivity that hosts the Fragment (directly or nested in another Fragment). There is more information about communicating with the parent FragmentActivity here.