iOS点赞放大效果

- (void) shakeToShow:(UIView*)aView{

CAKeyframeAnimation* animation = [CAKeyframeAnimation animationWithKeyPath:@"transform"];

animation.duration = 1.0;

NSMutableArray *values = [NSMutableArray array];

[values addObject:[NSValue valueWithCATransform3D:CATransform3DMakeScale(0.1, 0.1, 1.0)]];

[values addObject:[NSValue valueWithCATransform3D:CATransform3DMakeScale(1.5, 1.5, 1.0)]];

[values addObject:[NSValue valueWithCATransform3D:CATransform3DMakeScale(0.9 , 0.9, 1.0)]];

[values addObject:[NSValue valueWithCATransform3D:CATransform3DMakeScale(1.0, 1.0, 1.0)]];

animation.values = values;

[aView.layer addAnimation:animation forKey:nil];

}