【发布时间】:2023-10-30 14:47:02
【问题描述】:
我正在使用 UIBezierPath 创建一个圆形进度条。进度条如下图所示:
我的问题是:如何让圆弧的边缘变成圆形而不是矩形?
我用来绘制圆弧的代码如下:
// Draw the arc with bezier path
int radius = 100;
arc = [CAShapeLayer layer];
arc.path = [UIBezierPath bezierPathWithArcCenter:CGPointMake(100, 50) radius:radius startAngle:M_PI endAngle:M_PI/150 clockwise:YES].CGPath;
arc.position = CGPointMake(CGRectGetMidX(self.view.frame)-radius,
CGRectGetMidY(self.view.frame)-radius);
arc.fillColor = [UIColor clearColor].CGColor;
arc.strokeColor = [UIColor purpleColor].CGColor;
arc.cornerRadius = 0.5;
arc.lineWidth = 6;
[self.view.layer addSublayer:arc];
// Animation of the progress bar
drawAnimation = [CABasicAnimation animationWithKeyPath:@"strokeEnd"];
drawAnimation.duration = 5.0; // "animate over 10 seconds or so.."
drawAnimation.repeatCount = 1.0; // Animate only once..
drawAnimation.removedOnCompletion = YES; // Remain stroked after the animation..
drawAnimation.fromValue = [NSNumber numberWithFloat:0.0f];
drawAnimation.toValue = [NSNumber numberWithFloat:10.0f];
drawAnimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn];
[arc addAnimation:drawAnimation forKey:@"drawCircleAnimation"];
我尝试使用arc.cornerRadius,但它似乎什么也没返回。
任何帮助将不胜感激。
提前谢谢你!
花岗岩
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