Ios 检测UIScreenedGegestureRecognitor和失败的UIPangestureRecognitor

在我的ViewController中，我有一个用于切换视图的

UIScreenedGegestureRecognitor

，还有一个带有自定义

UITableViewCell

的

UITableView

。在这个定制的

UITableViewCell

是一个用于扫描单元格的

uipangestruerecognizer

我添加了

手势识别器：应与手势识别器同时识别：

，这样两种手势都能工作，

手势识别器应开始

，以防止垂直滚动的冲突

问题是，我如何赋予

UIScreenedGegestureRecognitor

优先级？当我在屏幕边缘滑动时，我希望在不平移单元格的情况下切换视图。我想我应该使用委托方法，但到目前为止，我读得越多，就越感到困惑

自定义UITableViewCell中的代码：

override func viewDidload() {
    var recognizer = UIPanGestureRecognizer(target: self, action: "handlePan:")
    recognizer.delegate = self
    addGestureRecognizer(recognizer)
}

override func gestureRecognizer(gestureRecognizer: UIGestureRecognizer, shouldRecognizeSimultaneouslyWithGestureRecognizer otherGestureRecognizer: UIGestureRecognizer) -> Bool {
    return true
}

override func gestureRecognizerShouldBegin(gestureRecognizer: UIGestureRecognizer) -> Bool {
    if let panGesture = gestureRecognizer as? UIPanGestureRecognizer {
        let velocity = panGesture.velocityInView(superview!)
        if fabs(velocity.x) > fabs(velocity.y) { return true }
        return false
    }
    return false
}

视图控制器：

override func viewDidLoad() {
    let rightScreenEdgeRecognizer = EdgePanGesture(target: self, action: "changeView:")
    rightScreenEdgeRecognizer.edges = .Right
    view.addGestureRecognizer(rightScreenEdgeRecognizer)
}

我还尝试通过以下方式识别识别器：

gestureRecognizer.isKindOfClass(UIScreenEdgePanGestureRecognizer)

及

---

但是都失败了。

结果证明我用

手势识别器看的方向是正确的？UIScreenedGepangEstureRecognitizer

，但我应该使用

其他GestureRecognitizer

而不是

GestureRecognitizer

override func gestureRecognizer(gestureRecognizer: UIGestureRecognizer, shouldRequireFailureOfGestureRecognizer otherGestureRecognizer: UIGestureRecognizer) -> Bool {
    if let recognizer = otherGestureRecognizer as? UIScreenEdgePanGestureRecognizer {
        return true
    }
    return false
}

override func gestureRecognizer(gestureRecognizer: UIGestureRecognizer, shouldRequireFailureOfGestureRecognizer otherGestureRecognizer: UIGestureRecognizer) -> Bool {
    if let recognizer = otherGestureRecognizer as? UIScreenEdgePanGestureRecognizer {
        return true
    }
    return false
}