UIScrollView get lock after double tap

Hi ,
I am having some issue with UIScrollView or its derived class .
in my application I have a UITableView were the UITableCell contains UIImageView
this image implement the message for touchBegin:: so they can do stuff . so far so good I am happy
the problem is that a lot of trim when the touchBegin event is finish my Table ( UIScrollView ) is not responding to scroll anymore , sometime with some random click I can unLock it but not always .
in an other view I use the UIScrollView directly and there the same , single or double tap just lock the view for no clear reason .
am I missing something , I found some other post about similar problem , but this is really really anoying , so I am surprise that I can see more chatter .
I can reproduce the same with one of the sample provided .
anyone with a tip ? a work around the problem would do just fine
thanks
damien

I have had similar issues while trying to get a ScrollView with buttons working. The ScrollView did not react to swipe gestures that start on a button. A UIControl gets the events a ScrollView needs for scrolling. A UIResponder object with userInteractionEnabled set to YES might be treated the same way.
To get scrolling working I had to do the folowing:
- Subclass the UIScrollView and implement hitTest (with pointInside) to always return self as the first responder.
- In the same subclass implement touchesShouldCancelInContentView to always return YES.
- Set the canCancelContentTouches propery to YES to make the ScrollView actually test if touches Should Cancel In ContentView.
I have no touchesBegan, touchesMoved or any other event handling code in the ScrollView subclass. The ScrollView itself takes care of that.
The documentation on canCancelContentTouches is an 'if ... and ... if ... then ... and ... else if ... then ..' construction. I needed the comments in the ScrollView headerfile to get a better impression about what is going on between ScrollViews and the UIResponders within.
I hope this will help you out.

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