给UICollectionViewCell绑定手势 long press举例

func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
    let cell = collectionView.dequeueReusableCellWithReuseIdentifier("newCell", forIndexPath: indexPath) as myCollectionViewCell
   
    cell.backgroundColor=UIColor.blackColor()
    var z: AnyObject! = dataArr[indexPath.row].valueForKey("zhangdanri")
    var h: AnyObject! = dataArr[indexPath.row].valueForKey("huankuanri")
    cell.textLabel?.text = "(z)~(h)"
    cell.textLabel1?.text=dataArr[indexPath.row].valueForKey("bank") as? String
    //这个tag是很有用的
    cell.tag = indexPath.row
    //最重要是下面这三行，记住是在这里绑定手势的，我刚开始一直不知道
    lp = UILongPressGestureRecognizer(target: self, action: Selector("longPress:"))
    lp.delegate = self
    cell.addGestureRecognizer(lp)
    return cell
}

func longPress(recognizer: UILongPressGestureRecognizer){
 //这就是你当前选中的cell的数组下标
 var index = recognizer.view!.tag
    //代码部分
    if(recognizer.state == .Began)//很重要！！就是按0.5秒触发事件的开始
    {
     .....
    }
}