如何启用单次触摸来处理UILongPressGestureRecognizer和UIPanGesturerecgnizer?

我只想在检测到长按后执行平移手势。我正在监视“UIGestureRecognizerState.Changed”的长按手势,并调用选择器处理那里的平移。选择器启动(我的“print()”检查显示在控制台中),但在uiview(blueRec)实际移动/转换之前,我必须抬起手指。

我知道长按和平移手势本质上都是连续的,但我如何使用启动长按的初始按压来同时平移触摸的uiview(blueRec)?我认为这根本不是 -要求手势识别器失败:

我将下面的代码精简为仅包含基本行。

@IBOutlet weak var graySuper: UIView!
@IBOutlet weak var blueRec: UIView!

@IBOutlet weak var blueLeading: NSLayoutConstraint!
@IBOutlet weak var blueTop: NSLayoutConstraint!

var longPressGesture:UILongPressGestureRecognizer!


override func viewDidLoad() {

    super.viewDidLoad()

    self.longPressGesture = UILongPressGestureRecognizer(target:self, action:"handleLongpress:")
    self.longPressGesture.minimumPressDuration = 2
    self.blueRec.addGestureRecognizer(self.longPressGesture)


}


func handleLongpress(sender:UILongPressGestureRecognizer) {

    print("LPress")

   switch (sender.state) {
    case UIGestureRecognizerState.Began:

        self.blueRec.center = sender.locationInView(self.graySuper)


        break;
    case UIGestureRecognizerState.Changed:

        self.blueRec.center = sender.locationInView(self.graySuper)



        break;
    case UIGestureRecognizerState.Ended:

        print("Press Ended ")

        break;
    default:
        break;
    } 

}