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.
