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IOS开发之为视图绘制单(多)个圆角实例代码
前言:
为视图绘制圆角,圆角可以选左上角、左下角、右下角、右上角、全部圆角
//Core RaduiasUIView *actionView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, 200, 200)];UIBezierPath *maskPath = [UIBezierPath bezierPathWithRoundedRect:actionView.bounds byRoundingCorners:UIRectCornerTopRight | UIRectCornerBottomRight cornerRadii:CGSizeMake(20, 20)];CAShapeLayer *maskLayer = [[CAShapeLayer alloc] init];maskLayer.frame = actionView.bounds;maskLayer.path = maskPath.CGPath;actionView.layer.mask = maskLayer;
UIRectCorner枚举值如下:
typedef NS_OPTIONS(NSUInteger, UIRectCorner) {UIRectCornerTopLeft = 1 << 0,UIRectCornerTopRight= 1 << 1,UIRectCornerBottomLeft = 1 << 2,UIRectCornerBottomRight = 1 << 3,UIRectCornerAllCorners = ~0UL};
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