We want to build a simple example that will save and restore its state from a
Bundle object. For this example, we have a very simple "guess my number" game. The
Activity object picks a number between one and ten and challenges the user to guess it.
The basic user interface layout for this example will need a label telling the user what to do, an input area for them to input their guess, and a button to tell the application they wish to input a guess. The following diagram is a basic idea of how the user interface should be structured:
If the user were to get an SMS while playing this game, ...