objective-c - About viewDiddisappear and viewDidAppear

Question

Click Next and it gets stuck. The viewWillDisappear of this interface is executed, and the viewWillappear and viewdidload of the next interface are both executed, but the interface is stuck and cannot perform any operations.
Please give me some advice

Answer 1

Usually there is a problem when jumping, please post the code

Answer 2

viewDidLoad viewWillDisappear... Do these call super? If you have adjusted it, please post the code, it’s for two controllers