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圆形的UIView底部边缘
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圆形的UIView底部边缘
作者:
春风助手
发布时间:
2024-09-19 08:18:57 (1天前)
<p>在App中，我将UINavigationBar子类化，并作为TitleView设置（在View Controller中）自定义UIView</p> <pre><code>[self.playButton setBackgroundColor:[UIColor yellowColor]]; [self.navigationItem setTitleView:self.playButton]; </code></pre><p>该视图（播放按钮）的底部边缘应弯曲。不仅是角落，机器人整个底边。要达到这种效果，我使用以下代码：</p> <pre><code>CAShapeLayer *maskLayer = [CAShapeLayer layer]; UIBezierPath *path = [[UIBezierPath alloc] init]; [path addCurveToPoint:CGPointMake(self.playButton.frame.size.width, self.playButton.frame.size.height) controlPoint1:CGPointMake(0, self.playButton.frame.size.height) controlPoint2:CGPointMake(self.playButton.frame.size.width, 60)]; maskLayer.path = path.CGPath; self.playButton.layer.mask = maskLayer; </code></pre><p>但是在那段代码之后，我的UIView（playButton）消失了！这是应用弯曲的UIView底部边缘的正确方法吗？</p>
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只怕再见是故人
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2020-08-10 11-54
解： ``` -(void)roundCorners:(UIRectCorner)corner radius:(float)radius { _cornerRadius = radius; _corner = corner; [self setNeedsDisplay]; } - (void)drawRect:(CGRect)rect { // Drawing code [super drawRect:rect]; UIBezierPath *maskPath = [UIBezierPath bezierPathWithRoundedRect:self.bounds byRoundingCorners:_corner cornerRadii:CGSizeMake(_cornerRadius, _cornerRadius)]; CAShapeLayer *maskLayer = [CAShapeLayer layer]; maskLayer.frame = self.bounds; maskLayer.path = maskPath.CGPath; self.layer.mask = maskLayer; } ```
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