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我有一个UILabel不透明度已通过使用更改为空白的[UIColor clearColor] 我现在想将标签中文本的不透明度更改为可能的完整级别。我该怎么做?
UILabel
[UIColor clearColor]
使用以下代码更改UILabel文本的不透明度
[headerLabel setAlpha:0.5];
快乐编码..:)