一、键盘
1.UIKeyboardWillShowNotification //将要弹出键盘
2.UIKeyboardDidShowNotification //显示键盘
3.UIKeyboardWillHideNotification //将要隐藏键盘
4.UIKeyboardDidHideNotification //键盘已经隐藏
5.UIKeyboardWillChangeFrameNotification //键盘将要改变frame
6.UIKeyboardDidChangeFrameNotification //键盘已经改变frame
二、窗口
1.UIWindowDidBecomeVisibleNotification //当window激活时并展示在界面的时候触发，返回空
2.UIWindowDidBecomeHiddenNotification //当window隐藏的时候触发，返回空
3.UIWindowDidBecomeKeyNotification //当window被设置为keyWindow时触发，返回空
4.UIWindowDidResignKeyNotification //当window的key位置被取代时触发，返回空
三、程序消息
1.UIApplicationDidEnterBackgroundNotification //程序进入后台
2.UIApplicationDidEnterBackgroundNotification //程序进入前台
3.UIApplicationDidFinishLaunchingNotification //程序加载完成
4.UIApplicationDidBecomeActiveNotification //程序变成活动状态
5.UIApplicationWillResignActiveNotification //程序变为非活动状态
6.UIApplicationDidReceiveMemoryWarningNotification //内存警告
7.UIApplicationWillTerminateNotification //程序进程停止
8.UIApplicationSignificantTimeChangeNotification //重要的时间变化(新的一天开始或时区变化)
9.UIApplicationWillChangeStatusBarOrientationNotification //将要改变状态栏方向
10.UIApplicationDidChangeStatusBarOrientationNotification //状态栏的方向改变
11.UIApplicationWillChangeStatusBarFrameNotification //将要改变状态栏的frame
12.UIApplicationDidChangeStatusBarFrameNotification //状态栏的frame改变
13.UIApplicationBackgroundRefreshStatusDidChangeNotification
14.UIApplicationProtectedDataWillBecomeUnavailable
15.UIApplicationProtectedDataDidBecomeAvailable
四、设备
1.UIDeviceOrientationDidChangeNotification //设备方向改变
2.UIDeviceBatteryStateDidChangeNotification //设备电池状态改变
3.UIDeviceBatteryLevelDidChangeNotification //设备电池电量改变
4.UIDeviceProximityStateDidChangeNotification //设备近距离传感器
五、屏幕
1.UIScreenDidConnectNotification //屏幕设备连接