小编Che*_*pig的帖子

我正在使用一个SKAudioNode()在我的游戏中播放背景音乐.我有一个播放/暂停功能,一切正常,直到我插入耳机.根本没有声音,当我调用暂停/播放功能时,我收到此错误

AVAudioPlayerNode.mm:333:开始:必需条件为false:_engine-> IsRunning()com.apple.coreaudio.avfaudio',原因:'必需条件为false:_engine-> IsRunning()

有谁知道这意味着什么？

码:

import SpriteKit

class GameScene: SKScene {

let loop = SKAudioNode(fileNamed: "gameloop.mp3")
let play = SKAction.play()
let pause = SKAction.pause()
var isPlaying = Bool()

override func didMoveToView(view: SKView) {  
    loop.runAction(play)
    isPlaying = true
    self.addChild(loop)
}

override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
    _ = touches.first as UITouch!

    for _ in touches {
        if isPlaying {
            loop.runAction(pause)
            isPlaying = false
        } else {
            loop.runAction(play)
            isPlaying = true
        } 
    }
}
}