我有一个类别中的以下代码进行四舍五入.我也想画边界.但边角没有显示在角落的圆角上.
这是代码
- (void) roundTopCorners:(CGFloat) radius
{
self.layer.masksToBounds = YES;
CGRect bounds = self.bounds;
UIBezierPath *maskPath = [UIBezierPath bezierPathWithRoundedRect:bounds byRoundingCorners:(UIRectCornerTopLeft | UIRectCornerTopRight) cornerRadii:CGSizeMake(radius,radius)];
CAShapeLayer *maskLayer = [CAShapeLayer layer];
maskLayer.frame = bounds;
maskLayer.path = maskPath.CGPath;
maskLayer.strokeColor = [UIColor redColor].CGColor;
self.layer.mask = maskLayer;
}
解决方法
掩模层不被绘制,仅用于计算掩模.尝试：
-(void)roundCorners:(UIRectCorner)corners radius:(CGFloat)radius
{
CGRect bounds = self.bounds;
UIBezierPath *maskPath = [UIBezierPath bezierPathWithRoundedRect:bounds
byRoundingCorners:corners
cornerRadii:CGSizeMake(radius,radius)];
CAShapeLayer *maskLayer = [CAShapeLayer layer];
maskLayer.frame = bounds;
maskLayer.path = maskPath.CGPath;
self.layer.mask = maskLayer;
CAShapeLayer* frameLayer = [CAShapeLayer layer];
frameLayer.frame = bounds;
frameLayer.path = maskPath.CGPath;
frameLayer.strokeColor = [UIColor redColor].CGColor;
frameLayer.fillColor = nil;
[self.layer addSublayer:frameLayer];
}
-(void)roundTopCornersRadius:(CGFloat)radius
{
[self roundCorners:(UIRectCornerTopLeft|UIRectCornerTopRight) radius:radius];
}
-(void)roundBottomCornersRadius:(CGFloat)radius
{
[self roundCorners:(UIRectCornerBottomLeft|UIRectCornerBottomRight) radius:radius];
}
您当前看到的框架是UITextField的正常框架,因此将框架样式设置为none.您还必须调整插图来弥补将框架样式设置为无,通常没有插入的事实.
