UIDocumentInteractionController
UIActivityViewController
Shared Keychain Access
Custom URL Scheme
Web Service
iCloud API
UIPasteboard
参考
- http://enharmonichq.com/sharing-data-locally-between-ios-apps/
- http://stackoverflow.com/questions/9425706/share-data-between-two-or-more-iphone-applications
- UIDocumentInteractionController Class Reference
iOS App之间传递数据的几种方式
原文：http://my.oschina.net/notting/blog/352759
