如何將手勢識別器添加到collectionview單元中的uiview

Question

我有一個全屏的水平collectionview。

1. 滾動被禁用
2. 分頁已啟用，分頁有下一個/上一個按鈕。

在我的collectionview單元中，我有一個標簽，當用戶向左/向右滑動時，我想識別該標簽。 將手勢添加到標簽后，什么也沒有發生。

碼：

collectionViewCell：

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

視圖控制器：

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

    cell.addGesture()

    return cell
}

我還嘗試將目標從myLabel切換到self，但仍然無法正常工作。

謝謝

Answer 1

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

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

Answer 2

我會將addGesture代碼移動到視圖控制器，以便您也可以處理視圖控制器中的滑動。

更改

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

至

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
}

然后您還需要在視圖控制器中實現test:因為將target設置為self ）：

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