[ ] Completed
Set Up and tear Down State in Your Test
Preparing Your UI to Run in the Foreground
Testing
Managing Your App’s Life Cycle
Using Delegates to Customize Object Behavior
Filling a Table with Data
Supporting VoiceOver in Your App
Using Responders and the Responder Chain to Handle Events
Fetching Website Data into Memory
Getting the User's Attention with Alerts and Action Sheets
Creating a Widget Extension