在屏幕更新后调用drawViewHierarchyInRect时，iOS8缩放毛刺：是 [英] iOS8 scale glitch when calling drawViewHierarchyInRect afterScreenUpdates:YES

问题描述

我正在将项目从iOS7转换为iOS8，它使用自定义转换，需要在完成加载 afterScreenUpdates：YES 之后捕获模态，并且看到整个屏幕比例一秒钟后缩小规模。当在iOS8上转换为照片时，我也会在部分和Yelp应用程序之间的iOS版Flickr应用程序中看到这种情况。

I was converting a project from iOS7 to iOS8 which uses custom transitions and needs to capture the modal after it finishes loading afterScreenUpdates:YES and was seeing that the entire screen scale up for a second and scale back down. I also see this happening in the Flickr app for iOS between sections and on Yelp app when transitioning to a photo on iOS8.

  UIGraphicsBeginImageContextWithOptions(self.view.frame.size, YES, 22.0); 
  [self.view drawViewHierarchyInRect:self.view.frame afterScreenUpdates:YES];
  UIGraphicsEndImageContext();

添加更大的比例因子有助于更多地强调故障......但我只是在调用它示例中的按钮按下。

Adding a larger scale factor helps emphasize the glitch more... but i'm just calling this on a button press in the example.

编辑这似乎发生在iPhone 6和6上，而不是5上。

EDIT This appears to happen on iPhone 6 and 6 plus not on the 5.

示例项目github

推荐答案

似乎在iOS9 / XCODE 7版本中修复了

Appears to be fixed in iOS9 / XCODE 7 builds

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