UISwipeGesture'无法识别的选择器发送到实例' | 无法识别的选择器发送到实例

本文介绍了UISwipeGesture'无法识别的选择器发送到实例'的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

如果有人可以帮我解决这个问题，那就太好了！我花了几个小时试图修复，没有运气

错误...

Code...

import Foundation
import SpriteKit

var startRing = SKShapeNode()

class MenuScene: SKScene {

    func slide(sender: AnyObject){
        debugPrint("WORKS")
    }

    override func didMove(to view: SKView) {

        let upSwipe = UISwipeGestureRecognizer(target: self, action: Selector("slide:"))
        upSwipe.direction = .up
        view.addGestureRecognizer(upSwipe)

    }

}

解决方案

You need to change your selector declaration to #selector(slide) and add an underscore before your method parameter func slide(_ sender: UISwipeGestureRecognizer):

class GameScene: SKScene {

    func slide(_ sender: UISwipeGestureRecognizer){
        print("WORKS")
    }
    override func didMove(to view: SKView) {
        let upSwipe = UISwipeGestureRecognizer(target: self, action: #selector(slide))
        upSwipe.direction = .up
        view.addGestureRecognizer(upSwipe)
    }
}

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