How to get the fragment instance from the FragmentActivity?

Question

I set the content view in the FragmentActivity, and the activity will create the fragment instance for me according to the class name specified in the layout file. But how c

Answer 1

To get the fragment instance in a class that extends FragmentActivity:

MyclassFragment instanceFragment=
    (MyclassFragment)getSupportFragmentManager().findFragmentById(R.id.idFragment);

To get the fragment instance in a class that extends Fragment:

MyclassFragment instanceFragment =  
    (MyclassFragment)getFragmentManager().findFragmentById(R.id.idFragment);