Array of Images display in UIScrollview and Paging successfully but cannot properly zoom-in images in scrollview

Question

I am working on UIScrollview with ImageArray. Scrolling and paging are working but I not able to zoom each image. My code of image Scrollview is below :-

#define I

Answer 1

for ( NSString *image in photos )
    {
       UIImage *images = [photos objectAtIndex:i];
       imageView = [[UIImageView alloc] initWithImage:images];
       imageView.contentMode = UIViewContentModeScaleAspectFit;
       imageView.clipsToBounds = YES;
       imageView.tag = 1;

       UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake( IMAGE_WIDTH * i++, 0, IMAGE_WIDTH, IMAGE_HEIGHT)];
       scrollView.delegate = self;
       scrollView.maximumZoomScale = 3.0f
       imageView.frame = scrollView.bounds;
       [scrollView addSubview:imageView];
       [imageView release];

       [self.scrollViewimages addSubview:scrollView];

     }

And Implement the delegate method in UIScrollViewDelegate

- (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView {
    return [scrollView viewWithTag:1];
}