I have set of Foo objects. I have an activity which contains a ListFragment listing all of them. Clicking an item on the list opens another activity containing fragments displaying the Foo details. From that activity I’m able to navigate to the third activity for editing the Foo details. The data is currently queried on the listing fragment and put into intent extras for usage in details fragments.
The problem is updating the data in the fragments in details and the list fragment, when I navigate back from the edit activity (when there are changes).
If I’ve understood the question correctly, one approach would be to make the underlying data set accessible to other activities in a more direct way, by using, say, a singleton class.