长按手势多次调用

【问题标题】：Long Press Gesture called multiple times长按手势多次调用
【发布时间】：2019-01-16 15:45:35
【问题描述】：

我遇到了 UILongPressGestureRecognizer 的问题，我使用了以下代码：-

func addLongPressGesture(){
        let lngPr = UILongPressGestureRecognizer.init(target: self, action: #selector(self.handleLongPress(gesture:)))
        lngPr.delaysTouchesEnded = true
        self.addGestureRecognizer(lngPr)
    }
    @objc func handleLongPress(gesture:UIGestureRecognizer){
       
        if selectedIndexPath != nil && delegate != nil{
            self.delegate?.delegateLongPressed(atIndexPath: selectedIndexPath!)
        }
    }

【问题讨论】：

标签： ios swift long-press swift4.1 uilongpressgesturerecogni

【解决方案1】：

你需要检查 UILongPressGesture 的状态来修改你的函数试试这个：-

func addLongPressGesture(){
        let lngPr = UILongPressGestureRecognizer.init(target: self, action: #selector(self.handleLongPress(gesture:)))
        lngPr.delaysTouchesEnded = true
        self.addGestureRecognizer(lngPr)
    }
    @objc func handleLongPress(gesture:UIGestureRecognizer){
        if gesture.state == .ended{
        if selectedIndexPath != nil && delegate != nil{
            self.delegate?.delegateLongPressed(atIndexPath: selectedIndexPath!)
        }
        }
    }

【讨论】：