如何摆脱在 iOS 7.1.1 中使用 layer.cornerRadius 圆角的 UIView 中的细边框? [英] How to get rid of thin border in a UIView rounded with layer.cornerRadius in iOS 7.1.1?

问题描述

我有一个自定义的 UIView，它通过像这样使用 layer.cornerRadius 来圆角:

I have a customized UIView that rounds its corners by using layer.cornerRadius like this:

- (void)layoutSubviews
{
    [super layoutSubviews];
    self.layer.cornerRadius = self.frame.size.width / 2.0;
    self.layer.borderColor = [UIColor whiteColor].CGColor;
    self.layer.borderWidth = 2.0;
    self.layer.masksToBounds = YES;
    self.backgroundColor = [UIColor redColor];
}

我怎样才能去掉外面很薄的红色圆圈?

How can I get rid of the very thin outer red circle?

推荐答案

好吧，一个更有效的方法是将这个函数复制粘贴到自定义视图的 .m 文件中，并在 drawRect 中调用它方法:

Well, a more efficient way to do what you need would be to copy paste this function in the .m file of your custom view and call it in the drawRect method:

- (void)drawRoundedViewWithFrame: (CGRect)frame color:(UIColor *)color
{
    //// roundCircle Drawing
    UIBezierPath* roundCirclePath = [UIBezierPath bezierPathWithOvalInRect: frame];
    [color setFill];
    [roundCirclePath fill];
    [UIColor.whiteColor setStroke];
    roundCirclePath.lineWidth = 2;
    [roundCirclePath stroke];
}

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