Resolving Gesture Conflicts
Gesture conflicts may arise when you need to recognize several types of gestures at the same time. For example, what happens when you need to recognize both single- and double-taps? Should the single-tap recognizer fire at the first tap, even when the user intends to enter a double-tap? Or should you wait and respond only after it’s clear that the user isn’t about to add a second tap? The iOS SDK allows you to take these conflicts into account in your code.
Your classes can specify that one gesture must fail in order for another to succeed. Accomplish this by calling requireGestureRecognizerToFail:. This gesture recognizer method takes one argument, another gesture recognizer. This call creates a dependency between ...
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