Animation issues

gistfile1.m

CABasicAnimation *positionAnimation;
positionAnimation = [CABasicAnimation animationWithKeyPath:@"position"];
positionAnimation.fromValue = [NSValue valueWithCGPoint:fromPosition];
positionAnimation.toValue = [NSValue valueWithCGPoint:toPosition];

CABasicAnimation *alphaAnimation;
alphaAnimation = [CABasicAnimation animationWithKeyPath:@"opacity"];
alphaAnimation.fromValue = [NSNumber numberWithFloat:fromAlpha];
alphaAnimation.toValue = [NSNumber numberWithFloat:toAlpha];
                                          
CABasicAnimation* scaleAnimation = [CABasicAnimation animationWithKeyPath:@"transform.scale"];
scaleAnimation.fromValue = [NSNumber numberWithFloat:fromScale];
scaleAnimation.toValue = [NSNumber numberWithFloat:toScale];                                                       



CAAnimationGroup *group = [CAAnimationGroup animation];
[group setAnimations:[NSArray arrayWithObjects: alphaAnimation, positionAnimation, scaleAnimation, nil]];
group.duration = duration;
group.removedOnCompletion = YES;
group.beginTime = CACurrentMediaTime() + delayInSeconds;
[view.layer addAnimation:group forKey:@"dropAnimation"];