锯切和隐藏导航栏的奇怪问题

Question

I have an application which presents few screens using navigation controller, On my First screen i have hide the navigation bar , When i Push On the Second screen I set my Navigation bar visable and When i pop from the Second screen to first screen i saw the one black stripe on the first screen, Can you please give me the Solution of this problem.

Thanks.

Answer 1

请在ViewWillAppear而不是ViewDidLoad隐藏导航栏，因为从第二个视图ViewDidLoad ，将首先调用viewWillAppear