UIButtonTypeRoundedRect 类型的 UIButton 的着色

问题描述

我希望 UIButton 主题类型的圆角矩形部分是我指定的纯色自定义颜色.我明白了

I would like the rounded rectangle portion of the subject type of UIButton to be a solid custom color I specify. I understand that

.setTitleColor : 改变文字颜色.backgroundColor : 改变圆角矩形后面四个饼状角块的颜色

. setTitleColor : changes the text color . backgroundColor : changes the color of the four pie-shaped corner pieces behind the rounded rectangle

问题是如何改变圆角矩形部分的颜色.

The question is how to change the color of the rounded rectangle portion.

我试过setImage，但图像必须有圆角，并且在按钮改变大小时没有任何价值.它不会缩放到新的大小.

I have tried setImage, but the image has to have rounded corners, and is of no value when the button changes size. It does not scale to the new size.

提前致谢.

推荐答案

试试

CALayer *subLayer = [CALayer layer];
subLayer.frame = self.theButton.bounds;
subLayer.cornerRadius = 10.0;
subLayer.opacity = 1.0;

CALayer *imageLayer = [CALayer layer];
imageLayer.frame = subLayer.bounds;
imageLayer.cornerRadius = 10.0;


imageLayer.masksToBounds = YES;
imageLayer.opacity = 1.0;
imageLayer.contents = (id) [UIImage imageNamed:@"your.png"].CGImage;

[subLayer addSublayer:imageLayer];

[self.theButton.layer addSublayer:subLayer];

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