IOS system messages

Reprinted from: http://momirror.blog.163.com/blog/static/48418184201361541235481/

First, the keyboard

1. uikeyboardwillshownotification-will eject the keyboard
2. uikeyboarddidshownotification-Display keyboard
3, uikeyboardwillhidenotification-will hide the keyboard
4, uikeyboarddidhidenotification-keyboard has been hidden
5. uikeyboardwillchangeframenotification-Keyboard will change frame
6. uikeyboarddidchangeframenotification-Keyboard has changed frame

Second, the window
1, uiwindowdidbecomevisiblenotification-window visible
2, uiwindowdidbecomehiddennotification-window hidden
3, Uiwindowdidbecomekeynotification
4, Uiwindowdidresignkeynotification
Third, the program message
1, uiapplicationdidbecomeactivenotification-program from the background activation
2, uiapplicationdidchangestatusbarframenotification-status bar frame change
3, uiapplicationdidchangestatusbarorientationnotification-status bar direction change
4, uiapplicationdidenterbackgroundnotification-into the backstage
5, uiapplicationdidfinishlaunchingnotification-program loading complete
6. uiapplicationdidreceivememorywarningnotification-Memory Warning
7, Uiapplicationprotecteddatadidbecomeavailable
8, Uiapplicationprotecteddatawillbecomeunavailable
9. Uiapplicationsignificanttimechangenotification Important time changes (New Day start or time zone change)
10, uiapplicationwillchangestatusbarorientationnotification-will change the status bar direction
11, uiapplicationwillchangestatusbarframenotification-will change the status bar frame
12, Uiapplicationwillenterforegroundnotification
13, Uiapplicationwillresignactivenotification
14, Uiapplicationwillterminatenotification

Iv. battery, direction, sensor
1, uidevicebatteryleveldidchangenotification//battery charge
2, uidevicebatterystatedidchangenotification//battery status
3, Uideviceorientationdidchangenotification//direction
4, Uideviceproximitystatedidchangenotification//near-distance sensor

Five, audio and video
1, Mpmedialibrarydidchangenotification
2, Mpmusicplayercontrollerplaybackstatedidchangenotification
3, Mpmusicplayercontrollernowplayingitemdidchangenotification
4, Mpmusicplayercontrollervolumedidchangenotification

Vi. Other
1, nsuserdefaultsdidchangenotification user default settings change
2 nscurrentlocaledidchangenotification Localization language changes

IOS system messages