本文介绍了如何为CAShapeLayer路径和fillColor设置动画的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
如何为CAShapeLayer路径和fillColor设置动画？
How to animate CAShapeLayer path and fillColor?
如何为strokeEnd设置动画以显示正在绘制的路径？以及如何为fillColor设置动画？
How to animate strokeEnd to show the path being drawn? and how to animate fillColor?
推荐答案
设置动画路径
//setup the CAShapeLayer
myShapeLayer.strokeColor = [[UIColor blueColor] CGColor];
myShapeLayer.lineWidth = 5;
myShapeLayer.fillColor = [[UIColor yellowColor] CGColor];
//Display it!
[self.view.layer addSublayer:myShapeLayer];
//Animate path
CABasicAnimation *pathAnimation = [CABasicAnimation animationWithKeyPath:@"strokeEnd"];
pathAnimation.duration = 1.5f;
pathAnimation.fromValue = [NSNumber numberWithFloat:0.0f];
pathAnimation.toValue = [NSNumber numberWithFloat:1.0f];
pathAnimation.repeatCount = 10;
pathAnimation.autoreverses = YES;
[myShapeLayer addAnimation:pathAnimation forKey:@"strokeEnd"];
//Animate colorFill
CABasicAnimation *fillColorAnimation = [CABasicAnimation animationWithKeyPath:@"fillColor"];
fillColorAnimation.duration = 1.5f;
fillColorAnimation.fromValue = (id)[[UIColor clearColor] CGColor];
fillColorAnimation.toValue = (id)[[UIColor yellowColor] CGColor];
fillColorAnimation.repeatCount = 10;
fillColorAnimation.autoreverses = YES;
[myShapeLayer addAnimation:fillColorAnimation forKey:@"fillColor"];
我希望这会有所帮助：）
I hope this helps :)
这篇关于如何为CAShapeLayer路径和fillColor设置动画的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！