UIViewController的生命周期

19 May 2015 in 知识 on Object-c

如果出现错误
[1. lowMemoryWarningOccurs

 2. didReceiveMemoryWarning

 3. propertyViewIsReleasedAndSetToNil

 4. viewDidUnload]

viewNotVisibleOnScreen

viewAskedToAppearOnScreen

1. loadView

2. viewDidLoad

3. viewWillAppear

4. viewDidAppear

如果出现错误

[ 5. lowMemoryWarningOccurs  6. didReceiveMemoryWarning ]

7. viewWillDisappear

8. viewDidDisappear