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

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 IMAGE_WIDTH 320
#define IMAGE_HEIGHT 360
- (void)viewDidLoad
{
[super viewDidLoad];
// TODO – fill with your photos
NSArray *photos = [[NSArray arrayWithObjects:
[UIImage imageNamed:#"photo1m.jpg"],
[UIImage imageNamed:#"photo2m.jpg"],
[UIImage imageNamed:#"photo3m.jpg"],
[UIImage imageNamed:#"photo4m.jpg"],
nil] retain];
// note that the view contains a UIScrollView in aScrollView
int i=0;
for ( NSString *image in photos )
{
UIImage *images = [photos objectAtIndex:i];
imageView = [[UIImageView alloc] initWithImage:images];
imageView.contentMode = UIViewContentModeScaleAspectFit;
imageView.clipsToBounds = YES;
imageView.frame = CGRectMake( IMAGE_WIDTH * i++, 0, IMAGE_WIDTH, IMAGE_HEIGHT);
[self.scrollViewimages addSubview:imageView];
[imageView release];
}
self.scrollViewimages.contentSize = CGSizeMake(IMAGE_WIDTH*i, IMAGE_HEIGHT);
self.scrollViewimages.delegate = self;
}
Need to help for implementing pinch zoom of every images. Please help !

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];
}

Answer 2

#define IMAGE_FOR_ZOOM_TAG (1)
Call following custom method
-(void) setupProductImageViewContainerUI
{
UIWindow *window = [[[UIApplication sharedApplication] delegate] window];
if(self.dimView)
{
for(UIView *subView in self.dimView.subviews)
[subView removeFromSuperview];
[self.dimView removeFromSuperview]; self.dimView = nil;
}
self.dimView = [[UIView alloc] initWithFrame:window.bounds];
self.dimView.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:.5];
self.dimView.userInteractionEnabled = YES;
[window addSubview:self.dimView];
self.imgContainerView = [[UIView alloc] init];
self.imgContainerView.frame = CGRectMake(0, 0, window.frame.size.width, window.frame.size.height);
self.imgContainerView.backgroundColor = [UIColor whiteColor];
[self.dimView addSubview:self.imgContainerView];
UIScrollView *mainScrollView = [[UIScrollView alloc] initWithFrame:window.bounds];
mainScrollView.pagingEnabled = YES;
mainScrollView.delegate = self;
mainScrollView.showsHorizontalScrollIndicator = NO;
mainScrollView.showsVerticalScrollIndicator = NO;
[self.imgContainerView addSubview:mainScrollView];
CGRect innerScrollFrame = mainScrollView.bounds;
IndexOfSlidingPhoto = 0;
for(int i = 0 ; i < listOfImages.count; i++)
{
UIImage *imgProduct = [GeneralClass getImageForSreenFromScreenTable:#"" orCustomTable:#"" OrDefaultImga:[listOfImages objectAtIndex:i]];
UIImageView *imageForZooming = [[UIImageView alloc] initWithImage:imgProduct];
imageForZooming.frame = CGRectMake(0, 0, window.frame.size.width, window.frame.size.height);
imageForZooming.tag = IMAGE_FOR_ZOOM_TAG;
imageForZooming.contentMode = UIViewContentModeScaleAspectFit;
UIScrollView *pageScrollView = [[UIScrollView alloc] initWithFrame:innerScrollFrame];
pageScrollView.minimumZoomScale = 1.0f;
pageScrollView.maximumZoomScale = 20;
pageScrollView.zoomScale = 1.0f;
pageScrollView.contentSize = imageForZooming.bounds.size;
pageScrollView.delegate = self;
pageScrollView.showsHorizontalScrollIndicator = NO;
pageScrollView.showsVerticalScrollIndicator = NO;
[pageScrollView addSubview:imageForZooming];
[mainScrollView addSubview:pageScrollView];
if (i < listOfImages.count -1)
innerScrollFrame.origin.x += innerScrollFrame.size.width;
mainScrollView.contentSize = CGSizeMake(innerScrollFrame.origin.x + innerScrollFrame.size.width, mainScrollView.bounds.size.height);
[window bringSubviewToFront:self.dimView];
}
#pragma Mark -
#pragma Mark - UIScrollView Delegate Methods
- (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView
{
return [scrollView viewWithTag:IMAGE_FOR_ZOOM_TAG];
}