Android Programming: The Big Nerd Ranch Guide

Activity: Fragment Boss

Now that your layouts are behaving properly, you can turn to adding a CrimeFragment to the detail fragment container when CrimeListActivity is sporting a two-pane layout.

You might think to simply write an alternative implementation of CrimeListFragment.onListItemClick(…) for tablets. Instead of starting a new CrimePagerActivity, onListItemClick(…) would get CrimeListActivity’s FragmentManager and commit a fragment transaction that adds a CrimeFragment to the detail fragment container.

The code would look like this:

public void onListItemClick(ListView l, View v, int position, long id) { // Get the Crime from the adapter Crime crime = ((CrimeAdapter)getListAdapter()).getItem(position); // Stick a new CrimeFragment in ...