SDK: xCode 3.2 Device: iPhone 3GS OS 3.13 / iPad Case: In Apple Sample Library [ScrollViewSuite]. The [2_Autoscroll] project. In [ThumbImageView], We can drag and drop to scroll the view. So that we can see any menu item by touch the screen and do moving. How to implement this feature in [TagDetectingImageView] ? I have try to copy [touch event] function from [ThumbImageView], modify it and implement to [TagDetectingImageView]. (Just rename the [ThumbImageView] to [TagDetectingImageView] inside those function) But when i touch and move on the [TagDetectingImageView], the view will moved out of the screen (Don't know where is it) Source - Please find the 2_Autoscroll source code in: http://developer.apple.com/iPhone/library/samplecode/ScrollViewSuite/Introduction/Intro.html Thanks