iOS scroller blocking 2nd touch event

Scott Morrow scott at
Tue May 3 05:22:01 EDT 2011

 I am using 4.6.1 but I hadn't experimented with "canCancelTouches".   I don't completely understand how / why the messages are being delivered (or not) but was able to get it working by turning off the "visible" property of the scroller when the first touch event was triggered.  This allowed a second touch to reach the target. Thanks for the suggestions... "canCancelTouches" put me on the right track.
Scott Morrow

Elementary Software
(Now with 20% less chalk dust!)
email     scott at

On May 2, 2011, at 8:21 PM, J. Landman Gay wrote:

> On 5/2/11 12:09 AM, Scott Morrow wrote:
>> I am using a "2 finger touch" event to call a HUD panel (thanks,
>> René!) in iOS. This seemed to work well until I tried it on a card
>> that also had a UIScrollView object.  When the scroller is present I
>> can only get the first touch.  I'm testing for the first and second
>> touch inside of a button which is outside of the scroller.  Is there
>> a property of the scroller I'm setting incorrectly? Thanks!
> Have you tried version 4.6.1? There were some bugs in the scroller that got fixed with that version. Also, if you are already using that version, play with canCancelTouches and cancelTouches to adjust the behavior.
> -- 
> Jacqueline Landman Gay         |     jacque at
> HyperActive Software           |
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