Draw line then delete it - ios

Question

with Xcode for iOS, I have animated a drawn line.
I wish to delete it (or fade away) almost immediately.
I have tried to repeat the code with the colour set to clear (red for the tests) as my background is a grid pattern. But I only get the last colour line drawn.
Any ideas on drawing the lines in sequence one after each other?
{
UIBezierPath *path = [UIBezierPath bezierPath];
[path moveToPoint:CGPointMake(0.0,100.0)];
[path addLineToPoint:CGPointMake(150.0, 100.0)];
[path addLineToPoint:CGPointMake(155.0, 50.0)];
[path addLineToPoint:CGPointMake(160.0, 150.0)];
[path addLineToPoint:CGPointMake(165.0, 100.0)];
[path addLineToPoint:CGPointMake(350.0, 100.0)];
CAShapeLayer *pathLayer = [CAShapeLayer layer];
pathLayer.frame = self.view.bounds;
pathLayer.path = path.CGPath;
pathLayer.strokeColor = [[UIColor greenColor] CGColor];
pathLayer.fillColor = nil;
pathLayer.lineWidth = 2.0f;
pathLayer.lineJoin = kCALineJoinBevel;
[self.view.layer addSublayer:pathLayer];
CABasicAnimation *pathAnimation = [CABasicAnimation animationWithKeyPath:#"strokeEnd"];
pathAnimation.duration = 1.0;
pathAnimation.fromValue = [NSNumber numberWithFloat:0.0f];
pathAnimation.toValue = [NSNumber numberWithFloat:1.0f];
[pathLayer addAnimation:pathAnimation forKey:#"strokeEnd"];
}
Thanks

Answer 1

Add:
pathAnimation.autoreverses = true;
pathAnimation.removedOnCompletion = false;
pathAnimation.fillMode = kCAFillModeForwards;
You'll also probably want to use the animation delegate functions to remove the layer on completion.
Alternatively, if you want a delay (even slight) before the animation reverses, or want to fade it out in a different manner than reversing the animation, you can use a CAAnimationGroup to execute a series of animations on the same timeline.

Answer 2

Thanks for all the help.
I managed to find and successfully use code from the "Core Animation" Apple documentation. This is the first time I've managed that. Sorry for being slow, learning all the time. I had to replace "titleLayer" with "pathLayer". I'm sure that would have helped some of the suggestions.
Thanks again.
Here's my working code. Added after the code I posted above, before the last curly bracket.
CABasicAnimation* fadeAnim = [CABasicAnimation animationWithKeyPath:#"opacity"];
fadeAnim.fromValue = [NSNumber numberWithFloat:1.0];
fadeAnim.toValue = [NSNumber numberWithFloat:0.0];
fadeAnim.duration = 1.5;
[pathLayer addAnimation:fadeAnim forKey:#"opacity"];
// Change the actual data value in the layer to the final value.
pathLayer.opacity = 0.0;