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
>>
>>
>> _______________________________________________
>>
>> Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
>>
>> Please do not post admin requests or moderator comments to the list.
>> Contact the moderators at cocoa-dev-admins(at)lists.apple.com
>>
>> Help/Unsubscribe/Update your Subscription:
>> http://lists.apple.com/mailman/options/cocoa-dev/scottandrew%40roadrunner.com
>>
>> This email sent to scottand...@roadrunner.com
>
> _______________________________________________
>
> Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
>
> Please do not post admin requests or moderator comments to the list.
> Contact the moderators at cocoa-dev-admins(at)lists.apple.com
>
> Help/Unsubscribe/Update your Subscription:
> http://lists.apple.com/mailman/options/cocoa-dev/rols%40rols.org
>
> This email sent to r...@rols.org
_______________________________________________
Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com
This email sent to arch...@mail-archive.com
