UIApplicationDelegate

1.app 第一次打开时调用的代理

__-[AppDelegate application:willFinishLaunchingWithOptions:]

__-[AppDelegate application:didFinishLaunchingWithOptions:]

__-[AppDelegate applicationDidBecomeActive:]

2.

app 切换到其他应用

 __-[AppDelegate applicationWillResignActive:]

__-[AppDelegate applicationDidEnterBackground:]

__-[AppDelegate applicationWillEnterForeground:]

__-[AppDelegate applicationDidBecomeActive:]

3.home键切换的时候

 __-[AppDelegate applicationWillResignActive:]

4.收到电话或者下拉选择栏的时候

_-[AppDelegate applicationWillResignActive:]

5.收到通知

6.杀死app

[AppDelegate applicationWillResignActive:]

[AppDelegate applicationDidEnterBackground:]

__-[AppDelegate applicationWillTerminate:]