iOS7 Sampler 介绍
iOS7 Sampler 包含一组示例应用用来演示 iOS 7 的新特性，包括：
- Smile Detection
- Dynamic Behaviors
- Speech Synthesis
- Custom Transition
- 3D Map
- Sprite Kit
- Image Filters
- Map Directions
- Motion Effects (Parallax)
- Multipeer Connectivity
- New UIActivities: Airdrop , Post to Flickr / Vimeo, Add to Readinglist
- QR Code Generator
- Motion Activity Tracking
- Static Map Snapshots
- Safari Reading List
