圆的UIView的拐角处和轮视图的层的边框太(Round some corners of UIVie

我想圆一个UIView的两个底角，并有层的边框显示出来四舍五入为好。 我目前做的：

UIRectCorners corners = UIRectCornerBottomLeft | UIRectCornerBottomRight;
CGSize radii = CGSizeMake(kThisViewCornerRadius, kThisViewCornerRadius);
UIBezierPath *path = [UIBezierPath bezierPathWithRoundedRect:myView.bounds
                                           byRoundingCorners:corners
                                                 cornerRadii:radii];

CAShapeLayer *maskLayer = [CAShapeLayer layer];
[maskLayer setPath:path.CGPath];
myView.layer.mask = maskLayer;

这工作正常，正常的意见。 然而， myView的一层都有borderColor和borderWidth设置，并且可以从截图中看到，该层的边框是没有得到四舍五入：

我还试着子类的UIView和返回[CAShapeLayer layer]从+[Class layerClass]和设置视图的层作为形状层，但边界结束了视图的子视图的下方。

是否有可能圆一些视图的角落，全方位视图的层的边框，和剪辑层的边框下方的子视图？

请注意，这不是关于如何圆一些角落，而不是其他，而是如何让行程正常运行。

Answer 1:

我想通了，想着它，这要归功于一种新的方式大卫Rönnqvist的评论。

我试图做的圆角和行程都在一层。 相反，我把它分成两层：一个掩盖视图的层圆角落，并在视图中的其他添加的行程。

UIView *containerView = [[UIView alloc] initWithFrame:someFrame];

UIRectCorners corners = UIRectCornerBottomLeft | UIRectCornerBottomRight;
CGSize radii = CGSizeMake(kThisViewCornerRadius, kThisViewCornerRadius);

UIBezierPath *path = [UIBezierPath bezierPathWithRoundedRect:myView.bounds
                                           byRoundingCorners:corners
                                                 cornerRadii:radii];

// Mask the container view’s layer to round the corners.
CAShapeLayer *cornerMaskLayer = [CAShapeLayer layer];
[cornerMaskLayer setPath:path.CGPath];
containerView.layer.mask = cornerMaskLayer;

// Make a transparent, stroked layer which will dispay the stroke.
CAShapeLayer *strokeLayer = [CAShapeLayer layer];
strokeLayer.path = path.CGPath;
strokeLayer.fillColor = [UIColor clearColor].CGColor;
strokeLayer.strokeColor = [UIColor redColor].CGColor;
strokeLayer.lineWidth = 2; // the stroke splits the width evenly inside and outside,
                           // but the outside part will be clipped by the containerView’s mask.

// Transparent view that will contain the stroke layer
UIView *strokeView = [[UIView alloc] initWithFrame:containerView.bounds];
strokeView.userInteractionEnabled = NO; // in case your container view contains controls
[strokeView.layer addSublayer:strokeLayer];

// configure and add any subviews to the container view

// stroke view goes in last, above all the subviews
[containerView addSubview:strokeView];

Answer 2:

泽夫艾森伯格的答案是正确的。

虽然我更喜欢：

[self.layer addSublayer:strokeLayer];

而不是创建和加入子视图：

CGSize radii = CGSizeMake(radius, radius);

UIBezierPath *path = [UIBezierPath bezierPathWithRoundedRect:self.bounds
                                           byRoundingCorners:corners
                                                 cornerRadii:radii];

// Mask the container view’s layer to round the corners.
CAShapeLayer *cornerMaskLayer = [CAShapeLayer layer];
[cornerMaskLayer setPath:path.CGPath];
self.layer.mask = cornerMaskLayer;

// Make a transparent, stroked layer which will dispay the stroke.
CAShapeLayer *strokeLayer = [CAShapeLayer layer];
strokeLayer.path = path.CGPath;
strokeLayer.fillColor = [UIColor clearColor].CGColor;
strokeLayer.strokeColor = color.CGColor;
strokeLayer.lineWidth = 2; // the stroke splits the width evenly inside and outside,
// but the outside part will be clipped by the containerView’s mask.

[self.layer addSublayer:strokeLayer];

Answer 3:

这里是小码。 初始化的Alloc一个视图，发送到这个方法来获取圆角。 您可选择任何一轮ü希望的角落。 也给阴影笔触颜色。

 -(void) setMaskTo:(UIView*)view byRoundingCorners:(UIRectCorner)corners withColor:  (UIColor*) color
{
 UIBezierPath* rounded = [UIBezierPath bezierPathWithRoundedRect:view.bounds  byRoundingCorners:corners cornerRadii:CGSizeMake(9.0, 9.0)];

CAShapeLayer* shape = [[[CAShapeLayer alloc] init] autorelease];
[shape setPath:rounded.CGPath];
shape.strokeColor = [[UIColor grayColor] CGColor];

view.backgroundColor=color;
view.layer.mask = shape;
}

这样调用的方法。

[self setMaskTo:ABCView byRoundingCorners:UIRectCornerAllCorners withColor:[UIColor greenColor]];

文章来源: Round some corners of UIView and round the view’s layer’s border too