切换系统声音 - 快速



我想制作它,以便可以单击一个按钮,它将反复启动一遍又一遍地播放系统声音(无需重叠声音)直到再次单击按钮 - 因此,从本质上讲,按钮将重复播放音频服务系统的声音。

如果有人知道该怎么做,我将非常感谢。

谢谢

进行此操作,使用无限重复的AVAudioplayer,然后在按下按钮时暂停/播放它。首先制作一个函数的AudioPlayer变量,

var audioPlayer : AVAudioPlayer!

然后在ViewDidload的内部初始化AudiOplayer:

override func viewDidLoad() {
    super.viewDidLoad()
    guard let url = Bundle.main.path(forResource: "myOwnSound", ofType: "wav") else { //your own file name AND extension type of course
       print("file not found")
       return
    }
    do {
        try AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback)
        try AVAudioSession.sharedInstance().setActive(true)
        try audioPlayer = AVAudioPlayer(contentsOf: URL(string: url)!)
        audioPlayer!.prepareToPlay()
        audioPlayer.numberOfLoops = -1
    } catch let error as NSError {
        print("error while initialising sound: (error)")
    }
}

然后在链接到您的按钮的函数中,在我的情况下,我命名了该功能按钮:

@IBAction func buttonPress(_ sender:AnyObject){
    if audioPlayer.isPlaying {
       audioPlayer.pause()
    }
    else {
       audioPlayer.play()
    }
}

您可以使用AVFoundationAVAudioPlayer来管理音乐和 您的应用程序内部的声音

以下导入

import AVFoundation

创建Avaudioplayer的属性来管理播放/停止并在音乐按钮范围内添加以下代码

 var player : AVAudioPlayer?
@IBAction func openListAction(_ sender: UIButton) {
       // moveToGame()
        if sender.isSelected {
            sender.isSelected = false
            player?.stop()
        }
        else {
            sender.isSelected = true
            let bundle = Bundle.init(for: self.classForCoder)
            let path = bundle.path(forResource: "soundFileName", ofType : "soundFileExtension")! //.mp3, .caf etc
            let url = URL(fileURLWithPath : path)
            do {
                player = try AVAudioPlayer(contentsOf: url)
                player?.play()
            } catch {
                print ("Error to load music")
            }
        }
    }

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