addChildViewController后 Childvc viewWillAppear 不調用的問題

設置

[childVC beginAppearanceTransition:YES animated:YES]

即可

 

移除的時候要這樣 ：

 [childController beginAppearanceTransition:NO animated:YES];
 [childController.view removeFromSuperview];
 [childController endAppearanceTransition];

 viewWillDisappear和viewDidDisappear才會被調用

 

 

參見：http://www.jianshu.com/p/7587cce3ede0

http://blog.csdn.net/jlstmacblog/article/details/52414301