Continuous Touch detection in imageView using Touch event..?

Question

I have a method which call the another view. i want to call this method after the image is continuously for a definite time.

This type of method found in UIButton = touchDown(),touchup().

Is there any method in touch event to find continuous touch in image view.

Pls help me.

thanks in advance

Use a gesture recognizer – Paul de Lange Jul 06 '12 at 08:33 — Paul de Lange, Jul 06 '12 at 08:33

score 0 · Answer 1 · answered Jul 06 '12 at 07:37

0

You can use these events for UIIMAGEVIEW:

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event 

- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event

answered Jul 06 '12 at 07:37

Shehzad Bilal

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Thanks, But this methods finds only touch in the image view. I'm trying to detect the continuous touch on the image view. Like in UIButton touchdown() method. – R_RKumawat Jul 06 '12 at 08:42
touchesBegan and touchesEnd are the events only – Shehzad Bilal Jul 06 '12 at 08:55

janusfidel · Answer 2 · 2012-07-06T08:23:16.533

assuming you want to count the touch (continous like double tap)

- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
UITouch *touch = [[event allTouches] anyObject];

int index =[touch view].tag;

if (touch.tapCount == number && index == imageTag) {

}

}

tapCount will be the count of tap in continues time with a very short time interval (double tap). you cannot use it if the count of tap you want to watch has longer delay (say 5 single taps). alternatively, you can remember the touches for your imageview, something like:

 - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{
      UITouch *touch = [[event allTouches] anyObject];
      int index =[touch view].tag;

      if(index == imagetag){
         if([tempMutableArray count] < definiteTime){
            [tempMutableArray addObject:@"any"]
           }else{ 
            [tempMutablArray removeAllObjects]; 
            //you can call the method now
            }
      }
}

its a instance of NSMutableArray that supposed to be in the header file. the code is meant to just to give you an idea, gesture recognizer is an option too — janusfidel, Jul 06 '12 at 09:00

score 0 · Answer 3 · edited May 23 '17 at 10:34

0

You can use the tap gesture which you can see the answer i wrote in this thread.In this you can set the number of taps which needs to fire the event.Hope this helps you.

edited May 23 '17 at 10:34

Community

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answered Jul 06 '12 at 07:48

Mathew Varghese

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Continuous Touch detection in imageView using Touch event..?

3 Answers3