问题
In a tab bar application, I'm adding a view to my first tabbar view by doing:
[self.view addSubview:anotherView.view];
Once anotherView is done, I do:
[self.view removeFromSuperview];
Which goes back to the parent but doesn't fire viewDidAppear or viewWillAppear on the parent. I can use messaging but it seems there must be a better way. Any suggestions?
回答1:
When you add a subview to the first view, it's still visible, just behind the second view. Those methods don't fire because technically it's visible the whole time, even if it's completely covered by the second view.
来源：https://stackoverflow.com/questions/2308985/viewdidappear-viewwillappear-not-firing-in-tabbar-app