// 创建layer并设置属性 CAShapeLayer *layer = [CAShapeLayer layer]; layer.fillColor = [UIColor clearColor].CGColor; layer.lineWidth = 2.0f; layer.lineCap = kCALineCapRound; layer.lineJoin = kCALineJoinRound; layer.strokeColor = [UIColor redColor].CGColor; [self.view.layer addSublayer:layer]; // 创建贝塞尔路径~ UIBezierPath *path = [UIBezierPath bezierPath]; [path moveToPoint:CGPointMake(10, 100)]; [path addLineToPoint:CGPointMake(100, 200)]; [path addLineToPoint:CGPointMake(200, 50)]; [path addLineToPoint:CGPointMake(240, 150)]; [path addLineToPoint:CGPointMake(300, 120)]; // 关联layer和贝塞尔路径~ layer.path = path.CGPath; // 创建Animation CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"strokeEnd"]; animation.fromValue = @(0.0); animation.toValue = @(1.0); layer.autoreverses = NO; animation.duration = 2.0; // 设置layer的animation [layer addAnimation:animation forKey:nil]; // 第一种设置动画完成,不移除结果的方法 // animation.fillMode = kCAFillModeForwards; // animation.removedOnCompletion = NO; // 第二种 layer.strokeEnd = 1;
时间: 2024-10-08 09:04:45