如何将手势识别器添加到collectionview单元格中的uiview中

Question

我有一个全屏水平collectionview。

1. 滚动禁用
2. 分页被启用，也有对未来分页/分组按钮。

在我的collectionview cell中，我有一个标签，当用户向左/向右滑动时，我想识别它。 我将标记添加到标签后没有任何反应。

CODE：

collectionViewCell：

func addGesture(){ 
    let right = UISwipeGestureRecognizer(target: myLabel, action: "test") 
    right.direction = UISwipeGestureRecognizerDirection.Left 
    answer.addGestureRecognizer(right) 
} 

视图控制器：

func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell { 
    let cell = collectionView.dequeueReusableCellWithReuseIdentifier("formQuestionCell", forIndexPath: indexPath) as QuestionCell 

    cell.addGesture() 

    return cell 
} 

我也尝试从myLabel切换目标自我，它仍然无法正常工作。

感谢

Answer 1

我的addGesture代码移到视图控制器，这样就可以在视图控制器处理挥笔为好。

变化

func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell 

到

func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell { 
    let cell = collectionView.dequeueReusableCellWithReuseIdentifier("formQuestionCell", forIndexPath: indexPath) as QuestionCell 

    let right = UISwipeGestureRecognizer(target: self, action: Selector("test:")) 
    right.direction = UISwipeGestureRecognizerDirection.Left 
    cell.answer.addGestureRecognizer(right) // I am assuming 'answer' is an outlet to the label you want to add a gesture recognizer to in the QuestionCell class 

    return cell 
} 

，然后你需要在视图控制器实现test:以及（因为你的目标设定为self）：

func test(gestureRecognizer: UISwipeGestureRecognizer) { 
    // Deal with swipe 
} 

Answer 2

UITapGestureRecognizer *tapRecognizer = [[UITapGestureRecognizer alloc] 
             initWithTarget:self action:@selector(clickEventOnImage:)]; 

[tapRecognizer setNumberOfTapsRequired:1]; 
[tapRecognizer setDelegate: self]; 
cell.uiviewelement.userInteractionEnabled = YES; 
[cell.uivielement addGestureRecognizer:tapRecognizer];