如何在iCarousel中实现捏合手势以放大和缩小

Question

我使用iCarousel实现了一个图库应用程序。现在我需要将捏合手势包含到zoom in or zoom out each image。我添加了滚动视图并尝试了委托方法。但没有成功。 请帮帮我。

- (UIView *)carousel:(iCarousel *)carousel viewForItemAtIndex:(NSUInteger)indexs reusingView:(UIView *)view
{
    imgview = [[UIImageView alloc] init];
    UIImage * img = [items objectAtIndex:indexs];

    view = [[UIImageView alloc] initWithFrame:CGRectMake(0, 50, 320.0f,568)];

    ((UIImageView *)view).image = [UIImage imageNamed:@"page.png"];

    imgView.image= img ;
    imgView.contentMode = UIViewContentModeScaleAspectFit;
     self.scrollView = [[UIScrollView alloc] init];
self.scrollView.backgroundColor = [UIColor redColor];
self.scrollView .frame = CGRectMake(18,10, 282, 568);
self.scrollView.delegate =self;
self.scrollView.contentSize = CGSizeMake(imgView.frame.size.width, imgView.frame.size.height);
self.scrollView.maximumZoomScale = MAXIMUM_SCALE;
self.scrollView.minimumZoomScale = MINIMUM_SCALE;
self.scrollView.clipsToBounds = NO;
[view addSubview:self.scrollView];
imgView.contentMode = UIViewContentModeScaleAspectFit;
[self.scrollView addSubview:imgView];




    view.backgroundColor=[UIColor whiteColor];
    view.layer.borderColor=[[UIColor lightGrayColor] CGColor];
    view.layer.borderWidth=1;
    view.layer.cornerRadius = 5;
    view.layer.masksToBounds = YES;


    return view;

}
- (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView
{
    return imgView;
}
- (void)scrollViewDidEndZooming:(UIScrollView *)scrollView withView:(UIView *)view atScale:(CGFloat)scale
{

}

我尝试过这样的事情。

我也试过向imgView添加捏合手势。