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getting a single a double tap touch event

/ Published in: Objective C
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execute different functions on single or double tap

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  1. - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
  2. {	
  3.  
  4. 	UITouch *touch = touches.anyObject;
  5.     _dragStartPos = [touch locationInView:self];
  6.  
  7. /////////Logic To Handle Single and Double Tap
  8.  
  9. 	//the the first tap delegate message if its a double tap and so on
  10. 	[NSObject cancelPreviousPerformRequestsWithTarget:self
  11. 											 selector:@selector(singleTap)
  12. 											   object:nil];
  13.  
  14. 	[NSObject cancelPreviousPerformRequestsWithTarget:self
  15. 											 selector:@selector(doubleTap)
  16. 											   object:nil];
  17.  
  18. 	//logic to get the tap count
  19. 	if(touches.count == 1)
  20. 	{  
  21. 		if([[touches anyObject] tapCount] == 2)
  22. 		{
  23. 			[self performSelector:@selector(doubleTap)
  24. 					   withObject:nil
  25. 					   afterDelay:0.35]; 
  26. 		}
  27. 		else if([[touches anyObject] tapCount] == 3)
  28. 		{
  29. 			[self trippleTap];
  30. 		}
  31. 		else
  32. 		{
  33. 			[self performSelector:@selector(singleTap)
  34. 					   withObject:nil
  35. 					   afterDelay:0.35]; 
  36. 		}
  37. 	}
  38.  
  39.  
  40. }

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