DismissViewControllerAnimated EXC_Bad_ACCESS on true

问题描述：

我正在关注由WWDC发布的WWDC发布的教程“视图控制器内部”，以创建自定义视图控制器（视频位于：https://developer.apple.com/videos/wwdc/2014/和示例代码：https://developer.apple.com/library/ios/samplecode/LookInside/Introduction/Intro.html）。我一直在复制它们的Objective-C并将它翻译成Swift，并且我几乎可以正常工作，除了用一个手势点击隐藏overlay viewController。DismissViewControllerAnimated EXC_Bad_ACCESS on true

当我打电话：

func dimmingViewTapped(recognizer: UIGestureRecognizer) { 
    self.presentingViewController.dismissViewControllerAnimated(true, completion: nil) 
}

我得到一个错误：线程1：EXC_BAD_ACCESS（代码= 1，地址= 0xC的），如果动画字段设置为true。如果它设置为false，那么所有的工作都很完美，并且在没有动画的情况下消失）。另一个奇怪的是，它有时会设置为true时工作。也许每15次尝试一次动画就会完成，我不会收到错误。

我遵循与示例代码中定义的完全相同的结构，其中包含处理创建呈现控制器对象以及动画的转换委托。

class OverlayTransitioningDelegate : NSObject, UIViewControllerTransitioningDelegate { 

func presentationControllerForPresentedViewController(presented: UIViewController, 
    presentingViewController presenting: UIViewController, 
    sourceViewController source: UIViewController) -> UIPresentationController { 
     return OverlayPresentationController(presentedViewController: presented, 
      presentingViewController: presenting) 
} 

func animationControllerForPresentedController(presented: UIViewController, presentingController presenting: UIViewController, sourceController source: UIViewController) -> UIViewControllerAnimatedTransitioning? { 
    var animationController: OverlayAnimatedTransitioning = OverlayAnimatedTransitioning() 
    animationController.isPresentation = true 
    return animationController 
} 

func animationControllerForDismissedController(dismissed: UIViewController) -> UIViewControllerAnimatedTransitioning? { 
    var animationController: OverlayAnimatedTransitioning = OverlayAnimatedTransitioning() 
    animationController.isPresentation = false 
    return animationController 
} 

}

我知道已经有几个问题在那里对此但是他们阅读后，我还是住了，正在寻找帮助。

答

确保您的转换委托保持强大。将其设置为控制器上的强大属性。

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil]; 
SearchDetailsViewController *viewController = [storyboard instantiateViewControllerWithIdentifier:@"SearchStoryboardID"]; 
viewController.delegate = self; 
SearchDetailsViewControllerTransitioningDelegate *transitioningDelegate = [[SearchDetailsViewControllerTransitioningDelegate alloc] init]; 
**self.detailsTransitioningDelegate** = transitioningDelegate; 
viewController.transitioningDelegate = (id <UIViewControllerTransitioningDelegate>)self.detailsTransitioningDelegate; 
[self presentViewController:viewController animated:YES completion:nil];

答

这是取而代之的评论。但Swift和Objective-C之间应该没有区别。两种情况下，TransitioningDelegate都应该很弱。

DismissViewControllerAnimated EXC_Bad_ACCESS on true

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