你可以在它的一个子视图上重写父UIView的alpha值吗？ [英] Can you override a parent UIView's alpha value on one of its subviews?

问题描述

我有一个有些透明的视图（alpha = 0.6）有一些子视图。我想要一个子视图（UILabel）使用alpha的1.0绘制，因为混合使文本难以阅读，但通过将其添加为主视图的子视图，它已采用其父的alpha值。有没有办法重写这种行为？我相信我必须从子视图中删除它，但想问，看看是否可能缺少一些东西。

I have a somewhat transparent view (alpha = 0.6) that has some subviews. I'd like one of the subviews (a UILabel) to be drawn with alpha of 1.0 because the blending makes the text difficult to read but by adding it as a subview of the main view it has adopted its parent's alpha value. Is there a way to override this behavior? I believe I'll have to remove it from the subview but wanted to ask and see if maybe I'm missing something.

推荐答案

你是正确的。您必须将UILabel从透明视图中移出，以使其呈现为不透明。

You are correct. You'll have to move the UILabel out of the transparent view to get it to render as non-transparent.

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