snapshotViewAfterScreenUpdates iOS 8上的故障 [英] snapshotViewAfterScreenUpdates glitch on iOS 8

问题描述

我注意到运行这会导致视图（或主窗口，不确定）调整片刻，当在iPhone 5/6 +模拟器上运行时，从iPhone 5布局缩放（不通过iPhone 6/6的启动图像） +）：

I've noticed running this would cause view (or main window, not sure) to resize for a moment, when running on iPhone 6/6+ simulator scaled from iPhone 5 layout (without passing launch image for iPhone 6/6+):

[self.view snapshotViewAfterScreenUpdates:YES];

当你不能在那里传递'NO'时，有什么想法让它工作吗？

Any idea how to make it work when you can't pass 'NO' there?

更新（7月13日）：

似乎不再在iOS 8.4上重现。

Update (Jul 13th):
Does not seem to reproduce on iOS 8.4 anymore.

推荐答案

由于它似乎是一个Apple / API问题，我只是决定在需要传递YES时不使用该方法。

Since it seemed like an Apple/API problem, I just decided to not use that method when I need to pass a "YES."

您可以只截取视图的截图（UIImage）并将其放在UIImageView中，作为您从快照方法中获取的UIView。

You can just take a screenshot (UIImage) of your view and place it in a UIImageView to act as the "UIView" you used to get from the snapshot method.

以下是代码链接：
如何在不损失视网膜显示质量的情况下将UIView捕获到UIImage上

#import <QuartzCore/QuartzCore.h>

+ (UIImage *) imageWithView:(UIView *)view
{
    UIGraphicsBeginImageContextWithOptions(view.bounds.size, view.opaque, 0.0);
    [view.layer renderInContext:UIGraphicsGetCurrentContext()];

    UIImage * img = UIGraphicsGetImageFromCurrentImageContext();

    UIGraphicsEndImageContext();

    return img;
}

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