长按手势识别器仅在手指抬起时才会被触发

Question

I'm having an interesting problem with a long press gesture recognizer. I placed one of these on a UITableView, and it only works when I lift my finger after the long press. So basically, I would place my finger on a cell, and then when I lift my finger, it triggers the long press. I figured this out by putting printn s when the long press began and ended and both fire after I lift my finger. I think the tableViews default panGestureRecognizer might be interfering with the longPressGestureRecognizer . Here is my code in viewDidLoad :

    var longPress:UILongPressGestureRecognizer = UILongPressGestureRecognizer(target: self, action: "handleLongPress:")
    longPress.minimumPressDuration = 0.06
    longPress.delegate = self
    self.tableView.addGestureRecognizer(longPress)
    longPress.requireGestureRecognizerToFail(self.tableView.panGestureRecognizer)

Answer 1

触摸单元格不会导致表格视图的panGestureRecognizer失败，因此删除requireGestureRecognizerToFail方法，然后在手指仍然按下时应该进入.Began状态。