我正在使用以下代码将渐变颜色设置为标签的背景,但没有效果,我在做什么错?
代码在这里:

    [self.teamName setTextColor:[UIColor whiteColor]];
    [self.teamName setBackgroundColor:[UIColor clearColor]];
    CAGradientLayer *gradientLayer = [CAGradientLayer layer];
    gradientLayer.frame = self.teamName.bounds;
    gradientLayer.colors = [NSArray arrayWithObjects:(id)[[UIColor whiteColor]CGColor], (id)[[UIColor blackColor]CGColor], nil];
    [self.teamName.layer insertSublayer:gradientLayer atIndex:0];

最佳答案

当我将CAGradientLayer插入主 View 时,它工作正常。

[self.teamName setTextColor:[UIColor whiteColor]];
    [self.teamName setBackgroundColor:[UIColor clearColor]];
    CAGradientLayer *gradientLayer = [CAGradientLayer layer];
    gradientLayer.frame = self.teamName.bounds;
    gradientLayer.colors = [NSArray arrayWithObjects:(id)[[UIColor whiteColor]CGColor], (id)[[UIColor blackColor]CGColor], nil];
    [self.view.layer insertSublayer:gradientLayer atIndex:0];

关于uilabel - 如何在iPhone中将渐变颜色设置为UILabel的背景,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/15382366/

10-12 14:43