“viewWillTransitionToSize:”当视图控制器以模态显示时,在iOS 9中未调用

前端之家收集整理的这篇文章主要介绍了“viewWillTransitionToSize:”当视图控制器以模态显示时,在iOS 9中未调用前端之家小编觉得挺不错的,现在分享给大家,也给大家做个参考。
我从另一个提出一个视图控制器:
  1. - (void)showModalView
  2. {
  3. UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
  4. MySecViewController *mySecViewController = [storyboard instantiateViewControllerWithIdentifier:@"secController"];
  5. mySecViewController.delegate = self;
  6. [self presentViewController:mySecViewController animated:YES completion:nil];
  7. }

然后在呈现的UIViewController中,方法viewWillTransitionToSize:withTransitionCoordinator:在iOS 8中调用但不在iOS 9中调用

谢谢

解决方法

在您当前的视图控制器中,如果您覆盖了viewWillTransitionToSize:withTransitionCoordinator :,请确保您调用super.否则,此消息将不会传播到子视图控制器.

对于Objective-C:

  1. - (void)viewWillTransitionToSize:(CGSize)size withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator {
  2. [super viewWillTransitionToSize:size withTransitionCoordinator:coordinator];
  3.  
  4. // Your other code ...

和斯威夫特:

  1. override func viewWillTransition(to size: CGSize,with coordinator: UIViewControllerTransitionCoordinator) {
  2. super.viewWillTransition(to: size,with: coordinator)
  3.  
  4. // Your other code ...
  5. }

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