how to get a fragment added in an XML layout

Question

I have a layout which includes a fragment as follows:

Answer 1

If Fragment is included inside the layout file of Activity then it can be referenced by SupportFragmentManager like...

MyFragment myFragment= (MyFragment)getSupportFragmentManager().findFragmentById(R.id.FRAGMENTID)

If Fragment is included inside the layout file of another Fragment then it can be referenced by ChildFragmentManager like...

 MyFragment myFragment= (MyFragment)getChildFragmentManager().findFragmentById(R.id.FRAGMENTID)