Appcompat v7 support library



With appcompat v7 support library, you can get duplicate replacement feature for Action Bar.
I have checked the library (actually library project) goes well with CrimeIntent, except for the “More advanced integrarion” in the last challenge.

What is the advantage using ABS over appcompat v7 support library?



Have you tested implementing AbsListView.setMultiChoiceModeListener using the appcompat ActionMode? It all worked fine until I did that, because that listener is not there in the v7 support library. You need to implement your own AdapterView.OnItemLongClickListener interface. This is explained in the book. Someone has done it:

Or, use ABS until Google fixes that.