FragmentTransaction inside a Fragment

Question

I am using jfeinstien10's SlidingMenu. The menu that pulls out is a Fragment. When the user clicks on a menu item, it does something like this:

FragmentTransaction t = getActivity().getSupportFragmentManager().beginTransaction();
SherlockListFragment mFrag = new ItemsFragment();
t.replace(R.id.main_frag, mFrag);
t.commit();

However, I have heard that it is not good practice to control a Fragment from Another Fragment. In a situation like this, is this an acceptable method? Or should I be using a Callback Method to the parent FragmentActivity.

If a Callback method is the proper way, can I please see an example of how this works?

Answer 1

Instead of performing transaction in fragment, I would suggest you to leave it up to Activity level. To do that, define a public method in your activity and then call it from your fragment. For example:

Suppose your activity is:

class MainActivity extends Activity{
    ....

    public void replaceFragment(){
        FragmentTransaction t = getSupportFragmentManager().beginTransaction();
        SherlockListFragment mFrag = new ItemsFragment();
        t.replace(R.id.main_frag, mFrag);
        t.commit();
    }

    ....
}

And within your fragment, make the following call:

((MainActivity)getActivity()).replaceFragment();