UILongPressGestureRecognizer和UISwipeGestureRecognizer可以一起使用吗？

Question

我有以下代码可以创建四个手势：

    self.userInteractionEnabled = YES;

UIPanGestureRecognizer * panGesture = [[UIPanGestureRecognizer alloc]initWithTarget:self action:@selector(handlePan:)];
[panGesture setDelegate:self];
[self addGestureRecognizer:panGesture];

UILongPressGestureRecognizer * longPressGesture = [[UILongPressGestureRecognizer alloc]initWithTarget:self action:@selector(handleLongPress:)];
longPressGesture.minimumPressDuration = 0.00;
[self addGestureRecognizer:longPressGesture];

UISwipeGestureRecognizer * swipeUp = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(handleSwipeUp:)];
swipeUp.direction = UISwipeGestureRecognizerDirectionUp;
[self addGestureRecognizer:swipeUp];

UISwipeGestureRecognizer * swipeDown = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(handleSwipeDown:)];
swipeDown.direction = UISwipeGestureRecognizerDirectionDown;
[self addGestureRecognizer:swipeDown];

Pan和LongPress工作正常，但我从来没有得到任何一种Swipe手势。我需要做些什么才能调用滑动选择器？

由于

Answer 1

我刚回答了这个yesterday。

简短形式：滑动手势是平移手势的特例，默认情况下，两个手势不会同时识别。查看gestureRecognizer:shouldRecognizeSimultaneouslyWithGestureRecognizer:和/或requireGestureRecognizerToFail:。您可以在Apple's guide中找到有关此问题及相关问题的进一步帮助。