向UIToolBar / UINavigationBar / UITabBar添加图层蒙版会破坏半透明效果 [英] adding a layer mask to UIToolBar/UINavigationBar/UITabBar breaks translucency

问题描述

我将我的UI升级到iOS 7，并且一直使用自定义标签栏，其中CAShapeLayer用作蒙版。我一直试图通过在下面有一个UIToolBar来添加动态模糊，但是如果我尝试在工具栏上设置layer.mask属性，则半透明度已经消失，我只是半透明（但当然是屏蔽工作）。有没有办法让这个工作？在向这些类添加子视图时，我也看到了这种行为。

Im upgrading my UI to iOS 7, and have been using a custom tab bar which has a CAShapeLayer used as a mask. Ive been trying to add dynamic blur by having a UIToolBar underneath, but if i try setting the layer.mask property on the toolbar translucency is gone, and i just have it semi transparent (but masking works of course). Is there a way to get this working? Ive also seen this behavior when adding a subview to these classes.

推荐答案

如果半透明消失意味着它变得完全透明如果你只是在模拟器上测试，它是一个已知的模拟器错误。如果您在设备上运行它，它应该按预期工作。

If "translucency is gone" means it becomes totally transparent and if you tested just on simulator, it is a known bug of simulator. If you run it on devices, it should work as expected.

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