ios – touchesBegan与UITapGestureRecognizer

所以我正在使用 swift制作一个spritekit游戏.我想知道哪个最好用手势明智？

目前我有一个覆盖func touchesBegan处理所有水龙头和一个UILongPressGestureRecognizer处理长水龙头/保持.

所以你知道,按下按钮跳跃英雄.漫长的举动使得英雄成为了鸭子.

由于某种原因,我的longPress功能并不总是被调用(有时你可以按住10次然后停止被叫(不被识别),有时它是5,它会变化),这导致昨天整整一天尝试新事物和调查,这让我想到了这个问题.

使用touchesBegan或将我的所有触摸调用移动到由UITapGestureRecognizer处理的新函数是否更好？

我确实将所有内容从touchesBegan移动到了UITapGestureRecognizer,但看起来非常缓慢.但我可能一直在实施它错了？

这是识别器的设置方式：

func setupRecognizers() {
    let tapRecognizer = UITapGestureRecognizer(target: self,action: Selector("handleTap:"))
    view!.addGestureRecognizer(tapRecognizer)

    let longTapRecognizer = UILongPressGestureRecognizer(target: self,action: Selector("handleLongPress:"))
    longTapRecognizer.minimumPressDuration = 0.2
    view!.addGestureRecognizer(longTapRecognizer)

}

这些是处理手势的函数：

func handleTap(recognizer: UIGestureRecognizer) {
    //currently all handled in touchesBegan
}

func handleLongPress(recognizer: UIGestureRecognizer) {
    print("1 --------> longPress Called.... ",recognizer.state.rawValue,gameState)
    if gameState == .Play {
       //do stuff
       //duck Hero
    } else {
       //switch gameState
    }
}

这是处理触摸/点击的功能：

override func touchesBegan(touches: Set<UITouch>,withEvent event: UIEvent?) {
   /* Called when a touch begins */

for touch in touches {
     let location = touch.locationInNode(self)

     //do stuff

     switch gameState {
        case .MainMenu:
        break
        ... //more states
        }
   }
   super.touchesBegan(touches,withEvent: event)
}

如果我将所有内容从touchesBegans移动到tapRecogniser(上面的空函数),我也必须实现它,以转换触摸位置坐标：

func handleTap(recognizer: UIGestureRecognizer) {
    let location = convertPointFromView(CGPoint(x: recognizer.locationInView(nil).x,y: recognizer.locationInView(nil).y))
    print("Converted Coords: ",location)

    //then do all touchesBegan stuff
 }

我已经尝试了两种方法,但后者看起来似乎很慢而且迟钝.也许我忘了实施推荐的东西？

似乎我的longPress手势并不总是被调用,这些之间是否会有一些冲突？

解决方法

因此,如果您在红色方块上按住两秒钟,您将收到一条消息,当您放开时,消息将消失.你可能需要在那里添加一些布尔值,以确保你的角色在2秒按钮保持后不会每帧重复一些动作.这应该足以让你有希望开始

import SpriteKit

class GameScene: SKScene {

    // time values
    var delta = NSTimeInterval(0)
    var last_update_time = NSTimeInterval(0)

    var longTouchTimer = NSTimeInterval(0)
    var touched = false
    var testLabel = SKLabelNode(text: "you have touched for awhile Now bro")

    let touchSprite = SKSpriteNode(color: SKColor.redColor(),size: CGSizeMake(100,100))

    override func didMovetoView(view: SKView) {
        touchSprite.position = CGPointMake(self.size.width/2,self.size.height/2)
        addChild(touchSprite)

        testLabel.hidden = true
        testLabel.position = touchSprite.position
        testLabel.position.y += 100
        testLabel.fontSize = 20
        addChild(testLabel)
    }


    override func touchesBegan(touches: Set<UITouch>,withEvent event: UIEvent?) {
        for touch: AnyObject in touches {
            let location = touch.locationInNode(self)

            if touchSprite.containsPoint(location) {
                touched = true
            }
        }
    }

    override func touchesMoved(touches: Set<UITouch>,withEvent event: UIEvent?) {
        for touch: AnyObject in touches {
            let location = touch.locationInNode(self)

            if !touchSprite.containsPoint(location) {
                touched = false
                longTouchTimer = 0
            }
        }
    }

    override func touchesEnded(touches: Set<UITouch>,withEvent event: UIEvent?) {
        touched = false
        longTouchTimer = 0
    }

    override func update(currentTime: NSTimeInterval) {
        if last_update_time == 0.0 {
            delta = 0
        } else {
            delta = currentTime - last_update_time
        }

        last_update_time = currentTime

        if touched {
            longTouchTimer += delta
        }

        if longTouchTimer >= 2 {
            testLabel.hidden = false
        } else {
            testLabel.hidden = true
        }
    }
}