Camera Sounds and UI

In this episode we implement features that make the app feel more like a camera. When tapping the screen, we play the system camera shutter sound using AudioServices, then we add a small but useful flash effect to reinforce the fact the user took a photo. We'll also talk about a strategy for capturing the image by using a flag.

This is a companion discussion topic for the original entry at https://nsscreencast.com/episodes/300-camera-capture-camera-sounds-and-ui