UITapGestureRecognizer?

Your UIImageView won't pass touches to a UIGestureRecognizer unless you have set userInteractionEnabled = YES.

You are adding gestures to imageView, then you allocating a new UIImageView and adding to scrollView. Thats the problem I guess. Rearrange your code as, NSURL *imgUrl=NSURL alloc initWithString:@"

"; NSData *imgData = NSData dataWithContentsOfURL:imgUrl; UIImage *img = UIImage imageWithData:imgData; imageView = UIImageView alloc initWithImage:img; // set the tag for the image view imageView setTag:ZOOM_VIEW_TAG; // add gesture recognizers to the image view UITapGestureRecognizer *singleTap = UITapGestureRecognizer alloc initWithTarget:self action:@selector(handleSingleTap:); UITapGestureRecognizer *doubleTap = UITapGestureRecognizer alloc initWithTarget:self action:@selector(handleDoubleTap:); UITapGestureRecognizer *twoFingerTap = UITapGestureRecognizer alloc initWithTarget:self action:@selector(handleTwoFingerTap:); doubleTap setNumberOfTapsRequired:2; twoFingerTap setNumberOfTouchesRequired:2; imageView addGestureRecognizer:singleTap; imageView addGestureRecognizer:doubleTap; imageView addGestureRecognizer:twoFingerTap; singleTap release; doubleTap release; twoFingerTap release; self.

ImageScrollView addSubview:imageView; imgUrl release.

1 In addition to this, you should also consider downloading the image on the background and then add the image view to the scrollview. Since it seems to be static you might also consider saving the image to resources folder and then loading it. – Deepak Jul 27 at 12:57 @iAnand I do that but when I double click on image then it not work or can not detect tap on image.

Image can not zoom in or zoom out. – Neha Jul 28 at 4:22 when run this I get message on console that is unable to acess single and double tap. *** __NSAutoreleaseNoPool(): Object 0x4b4cc70 of class UIView autoreleased with no pool in place - just leaking – Neha Jul 28 at 12:01.

Also be sure to set to YES the UITapGestureRecognizer property. ImageView. UITapGestureRecognizer =YES.

This makes no sense. Neither does the +1 someone gave it. – Paul Lynch 2 days ago.

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