When trying to debug UI glitches caused by asynchronous events, I’ve found it useful to simulate an asynchronous event with a shake. It’s easy to hook into iOS device shake notifications with:
I’ve used shake notifications in various debugging situations such as:
- UI glitches caused by receipt of an Apple notification.
- Testing lock screen UI without having to wait for a time-out.
- Reporting memory used, when trying to track down memory leaks - a simple alternative to Instruments leak tool - which can be used by QA.
You can trigger a shake in the simulator with: ^⌘Z