iphone - Cómo animar la ruta de CAShapeLayer y fillColor

ios core-animation

Question

¿Cómo animar la ruta de CAShapeLayer y fillColor?

¿Cómo animar el trazo y mostrar el camino que se está dibujando? ¿Y cómo animar fillColor?

Answer 1

Animar camino

 //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"];

Espero que esto ayude :)