不要使用superview alpha值更新子视图 [英] Not to update the subview with superview alpha value

问题描述

我的问题是当我将视图作为子视图添加到根视图时。当我更改了根视图的alpha值时，同样在子视图中也发生了。实际上我不需要在子视图中进行更新。是否有任何解决方案要做那样。

My question is when i added a view as subview to Root view.When i changed the alpha value of root view same is occurring in subview also.Actually i don't need the updating in subview.Is there any solution to do like that.

推荐答案

这只会改变根视图的alpha而不是其他的

This will change only the alpha of the root view, not the others

    self.view.backgroundColor = [UIColor colorWithRed:0.0 green:0.0 blue:0.0 alpha:0.5];

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