加个tap事件为什么要这些判断？

[testPublicProfile]

• (void) addRequiredToDoubleTapsRecognizer:(UIGestureRecognizer*) recognizer {
  for (UIGestureRecognizer *gesture in [self gestureRecognizers]) {
  if ([gesture isKindOfClass:[UITapGestureRecognizer class]]) {
  UITapGestureRecognizer tapGesture = (UITapGestureRecognizer) gesture;
  if (tapGesture.numberOfTouchesRequired == 2 && tapGesture.numberOfTapsRequired == 1) {
  [recognizer requireGestureRecognizerToFail:tapGesture];
  }
  }
  }
  }

另外你那个明明是个button 为啥不addtarget 来添加事件？

[瓦工]

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