ios - "viewWillTransitionToSize:"在 iOS 9 中以模态方式呈现 View Controller 时未调用

Question

我展示了另一个 View Controller :

- (void)showModalView
{
   UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
   MySecViewController *mySecViewController = [storyboard instantiateViewControllerWithIdentifier:@"secController"];
   mySecViewController.delegate = self;
   [self presentViewController:mySecViewController animated:YES completion:nil];
}

然后在呈现的 UIViewController 中，方法 viewWillTransitionToSize:withTransitionCoordinator: 在 iOS 8 中被调用，但在 iOS 9...

谢谢

Answer 1

在您当前的 View Controller 中，如果您覆盖 viewWillTransitionToSize:withTransitionCoordinator:，请确保调用 super。否则，此消息不会传播到 subview Controller 。

对于 Objective-C:

- (void)viewWillTransitionToSize:(CGSize)size withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator {
    [super viewWillTransitionToSize:size withTransitionCoordinator:coordinator];

    // Your other code ... 

和Swift:

override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
    super.viewWillTransition(to: size, with: coordinator)

    // Your other code ...
}