cell的动画效果，加载更多时候的波浪效果(既整个cell的波浪效果)

1.波浪效果是在tableView 上的cell上实现的，在cell.m中写如下代码：

- (void)setSelected:(BOOL)selected animated:(BOOL)animated {

[super setSelected:selected animated:animated];

[self buttonAnimation];

}

2.动画方法：

- (CAAnimation *)animationRotate

{

//    UIButton *theButton = sender;

// rotate animation

CATransform3D rotationTransform  = CATransform3DMakeScale(1, 1, 1);

CATransform3D rotationTransform2 = CATransform3DMakeScale(1.1, 1.1, 1.1);

CABasicAnimation* animation;

animation = [CABasicAnimation animationWithKeyPath:@"transform"];

animation.toValue        = [NSValue valueWithCATransform3D:rotationTransform2];

animation.fromValue        = [NSValue valueWithCATransform3D:rotationTransform];

animation.duration        = .5;

animation.autoreverses    = YES;

animation.cumulative    = YES;

animation.repeatCount    = 1;

animation.beginTime        = 0;

animation.delegate        = self;

return animation;

}

- (void)animationDidStop:(CAAnimation *)anim finished:(BOOL)flag

{

//    [self buttonAnimation];

}

- (void)buttonAnimation{

CAAnimation* myAnimationRotate = [self animationRotate];

CAAnimationGroup *m_pGroupAnimation     = [CAAnimationGroup animation];

m_pGroupAnimation.delegate              = self;

m_pGroupAnimation.removedOnCompletion   = NO;

m_pGroupAnimation.duration              = 1;

m_pGroupAnimation.timingFunction        = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear];

m_pGroupAnimation.repeatCount           = 0;//FLT_MAX;  //"forever";

m_pGroupAnimation.fillMode              = kCAFillModeForwards;

m_pGroupAnimation.animations             = [NSArray arrayWithObjects:myAnimationRotate,nil];

[self.layer addAnimation:m_pGroupAnimation forKey:@"animationRotate"];

}