思路
- 1、用贝塞尔曲线绘制制定圆角路径
- 2、创建一个CAShapeLayer，设置shapeLayer.path等于绘制的路径
- 3、将shapeLayer作为控件的layer.mask
代码
粘贴图片.png
结果
粘贴图片.png
/**
参数：
rect : 被传入View的bounds
corners : 圆角的位置（枚举值：左上、左下、右上、右下，可用“|”符号组合使用）
cornerRadii : 圆角大小（CGSize）
*/
UIBezierPath *bezierPath = [UIBezierPath bezierPathWithRoundedRect:self.cuttingView.bounds byRoundingCorners:UIRectCornerTopLeft | UIRectCornerTopRight cornerRadii:CGSizeMake(10, 10)];
CAShapeLayer *shapeLayer = [[CAShapeLayer alloc] init];
shapeLayer.frame = self.cuttingView.bounds;
shapeLayer.path = bezierPath.CGPath;
self.cuttingView.layer.mask = shapeLayer;
- 项目中常用一个分类，调用简单
#import "UIView+WJExtend.h"
@implementation UIView(WJBaseExtend)
- (void)wj_roundViewWithCorners:(UIRectCorner)rectCorner
cornerRadii:(CGSize)cornerRadii {
UIBezierPath *path = [UIBezierPath bezierPathWithRoundedRect:self.bounds
byRoundingCorners:rectCorner
cornerRadii:cornerRadii];
CAShapeLayer *layer = [[CAShapeLayer alloc] init];
layer.frame = self.bounds;
layer.path = path.CGPath;
self.layer.mask = layer;
}
@end
