CABasicAnimation *pathAnimation = [CABasicAnimation animationWithKeyPath:@"strokeEnd"];
pathAnimation.duration = 4;
pathAnimation.fromValue = @(0.0);
pathAnimation.toValue = @(1.0);
pathAnimation.removedOnCompletion = YES;
pathAnimation.delegate = self;
#pragma mark -- CAAnimationDelegate
- (void)animationDidStop:(CAAnimation *)anim finished:(BOOL)flag
{
if (flag) {
}
}
