iphone - double tap fail safe way

Question

I am trying to detect double taps on a view, but when the double tap comes, the first tap triggers an action on TouchesBegan, so, before detecting a double tap a single tap

Answer 1

Edit: I missed the point that you said you cannot use 3.x gestures, so this is an invalid answer to your question, but I'm leaving it in case someone who can use 3.x gestures may benefit from it.

You can create two gesture recognizers, one for single tap and one for double tap:

UITapGestureRecognizer *singleTapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTouchesOne:)];
singleTapGesture.cancelsTouchesInView = NO; 
singleTapGesture.delaysTouchesEnded = NO;
singleTapGesture.numberOfTouchesRequired = 1; // One finger single tap
singleTapGesture.numberOfTapsRequired = 1;
[self.view addGestureRecognizer:singleTapGesture];
[singleTapGesture release];

UITapGestureRecognizer *doubleTapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(handleTouchesTwo:)];
doubleTapGesture.cancelsTouchesInView = NO; 
doubleTapGesture.delaysTouchesEnded = NO;
doubleTapGesture.numberOfTouchesRequired = 1; // One finger double tap
doubleTapGesture.numberOfTapsRequired = 2;
[self.view addGestureRecognizer:doubleTapGesture];
[doubleTapGesture release];

And then, here comes the punch:

[singleTapGesture requireGestureRecognizerToFail : doubleTapGesture];

The last line, makes your single tap handler work only if the double tap fails. So, you get both single tap and double tap in your application.