Hi Roland,
Thanks for answering my question. Shouldn't this be very restrictive though? I
don't know the statistics, but I'm pretty sure that there is a large number of
people having an old version of the OS.
aa
On Jun 5, 2010, at 10:04 PM, Roland King wrote:
> or if you are coding for 3.2 or later, use a UILongPressGestureRecognizer and
> let it do all the work.
>
> On 06-Jun-2010, at 12:36 AM, Scott Andrew wrote:
>
>> I believe the way to do this is to setup a timer on touchDown to fire once
>> after X number of seconds. Your touchUp and touchCancelled should kill the
>> timer if the timer is exists and is not invalidated. If you hit the timer
>> you are being held. When the timer is hit you restart the timer again for
>> the next check.
>>
>> Scott
>>
>>
>> On Jun 4, 2010, at 7:16 PM, Alejandro Marcos Aragón wrote:
>>
>>> Hi all,
>>>
>>> I've been trying to detect touch and hold vs touch on a subclass of
>>> UIButton. I basically accomplished that by doing the following:
>>>
>>> I first add the following when the button is created:
>>>
>>>
>>> [button addTarget:self action:@selector(sourceSelected:)
>>> forControlEvents:UIControlEventTouchUpInside];
>>> [button addTarget:self action:@selector(sourceTouchDown:)
>>> forControlEvents:UIControlEventTouchDown];
>>>
>>> Then in the functions:
>>>
>>> - (void) sourceSelected:(UIButton*) sender {
>>>
>>>
>>> // cancel request for extended meny
>>> [NSObject cancelPreviousPerformRequestsWithTarget:self
>>> selector:@selector(sourceSelectedExtended:) object:sender];
>>> ...
>>> }
>>>
>>> - (void) sourceTouchDown:(UIButton*) sender {
>>>
>>> // give time before performing action
>>> [self performSelector:@selector(sourceSelectedExtended:)
>>> withObject:sender afterDelay:0.5];
>>> }
>>>
>>> - (void) sourceSelectedExtended:(UIButton*) sender {
>>>
>>> // remove action from button
>>> [sender removeTarget:self action:@selector(sourceSelected:)
>>> forControlEvents:UIControlEventTouchUpInside];
>>> ...
>>> ...
>>> // give time before performing action
>>> [self performSelector:@selector(addSourceAction:) withObject:sender
>>> afterDelay:1.];
>>>
>>> }
>>>
>>> - (void) addSourceAction:(UIButton*)sender {
>>>
>>> // remove action from button
>>> [sender addTarget:self action:@selector(sourceSelected:)
>>> forControlEvents:UIControlEventTouchUpInside];
>>>
>>> }
>>>
>>>
>>>
>>> Now, this works fine, but then I thought there must be an easier (and
>>> definitely more elegant) way to accomplish the same thing.
>>>
>>> Can someone through me a line here?
>>>
>>> Thank you all,
>>>
>>> aa
>>>
>>>
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>>
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