On Sat, 05 Jun 2010 21:34:48 -0700, Matt Neuburg <m...@tidbits.com> said:
>On Fri, 4 Jun 2010 21:16:50 -0500, Alejandro Marcos Arag?n
><alejandro.ara...@gmail.com> said:
>>I've been trying to detect touch and hold vs touch on a subclass of UIButton.
>
>I think you want to imitate Listing 3-3 of Event Handling in the iPhone
>Application Programming Guide, handling the touches yourself. m.
Okay, forget that answer. :) If the difference between touch and
touch-and-hold is just a matter of how long the time is between the touch
down and the touch up, then all you have to do is measure that time:
- (void) userDidTouchDown: (id) sender event: (UIEvent*) e {
downtime = [e timestamp]; // downtime is an ivar or global
}
- (void) userDidTouchUp: (id) sender event: (UIEvent*) e {
double diff = [e timestamp] - downtime;
if (diff < 0.2) NSLog(@"tap");
else NSLog(@"tap and hold");
}
Obviously Touch Down is targeted at userDidTouchDown:. I think you might
want to target both Touch Up Inside and Touch Up Outside at userDidTouchUp:.
If you mean something more complex and profound by the difference between
touch and touch-and-hold, you can probably figure it out from the UIEvent,
so you'd do some more complex and profound form of event tracking here.
Anyway, I apologize for being hasty and not very clear before. What I was
really trying to say was that all your addition and removal of target-action
pairs seems unnecessary.
m.
--
matt neuburg, phd = m...@tidbits.com, <http://www.tidbits.com
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