title: Saving ArrayList<Uri> to SharedPreferences
body: <p>I create a few ArrayLists during one of my activities. When I leave the activity and come back to it, they come up as null. From some research, SharedPreferences is the way to overcome this. How do I go about this; do I have to save it as a HashMap? is SharedPreferences it's own method or do I do it within another specific method?</p>