因为项目要做到美观,加上扁平化设计这么流行,所以各种找资料.
原本想找找UIButton是否有直接的设置方法,却发现没有.找到点击后高亮也只有setBackgroundImage 这条路走了.
首先写一个能改变大小,颜色,返回值为image的类方法.(我在网上找的...)
class="brush:objc;gutter:true;">+ (UIImage *)imageWithColor:(UIColor *)color size:(CGSize)size { CGRect rect = CGRectMake(0, 0, size.width, size.height); UIGraphicsBeginImageContext(rect.size); CGContextRef context = UIGraphicsGetCurrentContext(); CGContextSetFillColorWithColor(context, [color CGColor]); CGContextFillRect(context, rect); UIImage *image = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext(); return image; }好吧,以下是我写的,与君分享:
+ (instancetype)buttonWithTitleAndColor:(NSString *)title frame:(CGRect)frame {
//必须是UIButtonTypeCustom,否则设置高亮不起作用
UIButton * btn = [UIButton buttonWithType:UIButtonTypeCustom]; [btn.layer setMasksToBounds:YES]; [btn.layer setCornerRadius:4.0]; //设置矩形四个圆角半径 // [btn.layer setBorderWidth:1.0]; //边框宽度 btn.frame = frame; [btn setTitle:title forState:UIControlStateNormal]; [btn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
//ButtonBgColor与ButtonTouchBgColor是两个UIColor颜色的宏定义,大家可以随意定义.例如[UIColor blueColor];
UIImage * bgImage1 = [self imageWithColor:ButtonBgColor size:frame.size]; UIImage * bgImage2 = [self imageWithColor:ButtonTouchBgColor size:frame.size]; [btn setBackgroundImage:bgImage1 forState:UIControlStateNormal]; [btn setBackgroundImage:bgImage2 forState:UIControlStateHighlighted]; return btn; }
大家也可以根据CAlayer的属性和方法,自定义喜欢的UIButton样式.
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