CABasicAnimation not animating on CAShapeLayer
Core Animation documentation seems simple enough, yet I can't figure out what's missing. I have a CAShapeLayer that I would like to animate using a simple CABasicAnimation.
I build the CAShapeLayer like so:
{
CGRect rect = CGRectMake(focal.x, focal.y, (self.radius * 2), (self.radius * 2));
self.touchCircle = [CAShapeLayer layer];
[self.touchCircle setPath:[[UIBezierPath bezierPathWithOvalInRect:rect] CGPath]];
[self.touchCircle setFrame:rect];
[self.touchCircle setLineWidth:self.stroke];
[self.touchCircle setPosition:focal];
[self focalColorOfPoint:focal];
[self.layer addSublayer:self.touchCircle];
}
and attempt an animation:
CABasicAnimation *radiusScale = [CABasicAnimation animationWithKeyPath:@"size"];
[radiusScale setFromValue:[NSValue valueWithCGSize:CGSizeMake(self.mRadius, self.mRadius)]];
[radiusScale setToValue:[NSValue valueWithCGSize:CGSizeMake(self.radius, self.radius)]];
[radiusScale setDuration:0.3f];
[self.touchCircle addAnimation:radiusScale forKey:@"touchCircleRadiusScaleUp"];
Any suggestions? Thanks in advance!
尝试使用animationWithKeyPath：@“transform”和动画
.toValue=[NSValue valueWithCATransform3D:CATransform3DMakeScale(scaleX, scaleY, scaleZ)];