图片执行放大动画后，不能保持放大效果问题解决

    CGPoint fromPoint = imageView.center;

    

    //路径曲线

    UIBezierPath *movePath = [UIBezierPath bezierPath];

    [movePath moveToPoint:fromPoint];

    CGPoint toPoint = view.center;

    [movePath addLineToPoint:toPoint];



    //关键帧

    CAKeyframeAnimation *moveAnim = [CAKeyframeAnimation animationWithKeyPath:@"position"];

    moveAnim.path = movePath.CGPath;

    moveAnim.removedOnCompletion = YES;

    

 

    

    

    //旋转变化

    CABasicAnimation *scaleAnim = [CABasicAnimation animationWithKeyPath:@"transform"];

    scaleAnim.fromValue = [NSValue valueWithCATransform3D:CATransform3DIdentity];

    //x，y轴放大,Z 轴不变

    scaleAnim.toValue = [NSValue valueWithCATransform3D:CATransform3DMakeScale(4.0,4.0, 1.0)];

    scaleAnim.removedOnCompletion = YES;

    

    imageView.layer.transform = CATransform3DMakeScale(4.0,4.0, 1.0);

    

    //关键帧，旋转，组合起来执行

    CAAnimationGroup *animGroup = [CAAnimationGroup animation];

    animGroup.animations = [NSArray arrayWithObjects:moveAnim,scaleAnim,nil];

    animGroup.duration = 1;

    [imageView.layer addAnimation:animGroup forKey:@"transform"];

注意上面红色 部分代码，直接修改图片动画后的效果，这样就能保持动画的效果了。