一、概念

/**

UIView 的左上角和右上角为圆角

UIButton左上角和右上角圆角

注意:直接拷贝方法直接可以使用

CSDN:https://blog.csdn.net/shihuboke/article/details/82083432

*/

二、UIView 的左上角和右上角为圆角

效果图:

UIView 的左上角和右上角为圆角

声明:

@property(nonatomic,strong) UIView *platFormRadiusView;

- (void)viewDidLoad {

[super viewDidLoad];

self.title = @"左上和右上为圆角";

[self platFormRadiusView];

}

实现:

-(UIView *)platFormRadiusView{

if (!_platFormRadiusView) {

_platFormRadiusView = [[UIView alloc] init];

_platFormRadiusView.backgroundColor = [UIColor redColor];

_platFormRadiusView.frame = CGRectMake(0, 100,self.view.frame.size.width , 200);

[self.view addSubview:_platFormRadiusView];

// 左上和右上为圆角

UIBezierPath *cornerRadiusPath = [UIBezierPath bezierPathWithRoundedRect:_platFormRadiusView.bounds byRoundingCorners:UIRectCornerTopRight | UIRectCornerTopLeft cornerRadii:CGSizeMake(15, 15)];

CAShapeLayer *cornerRadiusLayer = [ [CAShapeLayer alloc ] init];

cornerRadiusLayer.frame = _platFormRadiusView.bounds;

cornerRadiusLayer.path = cornerRadiusPath.CGPath; _platFormRadiusView.layer.mask = cornerRadiusLayer;

}

return _platFormRadiusView;

}

三、UIButton 的左上角和右上角为圆角

效果图:

UIButton 的左上角和右上角为圆角

- (void)viewDidLoad {

[super viewDidLoad];

self.title = @"Button左上和右上为圆角";

[self platFormRadiusButton];

}

实现:

-(void)platFormRadiusButton{

UIButton *shButton = [UIButton buttonWithType:UIButtonTypeCustom];

shButton.frame = CGRectMake(0, 100, self.view.frame.size.width, 200);

shButton.backgroundColor = [UIColor redColor];

[shButton setTitle:@"石虎测试Button" forState:0];

shButton.tag = 1;

[self.view addSubview:shButton];

//设置圆角

UIBezierPath *maskPath = [UIBezierPath bezierPathWithRoundedRect:shButton.bounds byRoundingCorners:UIRectCornerTopRight | UIRectCornerTopLeft cornerRadii:CGSizeMake(15, 15)];

CAShapeLayer *maskLayer = [[CAShapeLayer alloc] init];

maskLayer.frame = shButton.bounds;

maskLayer.path = maskPath.CGPath;

shButton.layer.mask = maskLayer;

}