音频停止的原因是因为您仅设置了一个AVAudioPlayer，所以当您要求类播放另一种声音时，当前您正在用新的AVAudioPlayer实例替换旧实例。您基本上是在覆盖它。
您可以创建GSAudio类的两个实例，然后在每个实例上调用playSound，或者使该类成为使用audioPlayers词典的通用音频管理器。
我更喜欢后一种选择，因为它可以使代码更简洁并且效率更高。您可以检查以前是否已经为声音创建了播放器，而不是例如创建新的播放器。
无论如何，我为您重新制作了您的课程，以便它可以一次播放多种声音。它也可以在自身上播放相同的声音（它不会替代声音的先前实例）希望对您有所帮助！
该类是单例，因此要访问该类，请使用：
GSAudio.sharedInstance
例如，要播放声音，您可以致电：
GSAudio.sharedInstance.playSound("AudioFileName")并同时播放多种声音：
GSAudio.sharedInstance.playSounds("AudioFileName1", "AudioFileName2")或者您可以将声音加载到数组中的某个位置，然后调用接受数组的playSounds函数：
let sounds = ["AudioFileName1", "AudioFileName2"]GSAudio.sharedInstance.playSounds(sounds)
我还添加了playSounds函数，该函数可让您延迟以级联形式播放的每种声音。所以：
let soundFileNames = ["SoundFileName1", "SoundFileName2", "SoundFileName3"] GSAudio.sharedInstance.playSounds(soundFileNames, withDelay: 1.0)
将在sound1之后播放sound2，然后sound3将在sound2之后播放秒，依此类推。
这是课程：
class GSAudio: NSObject, AVAudioPlayerDelegate { static let sharedInstance = GSAudio() private override init() {} var players = [NSURL:AVAudioPlayer]() var duplicatePlayers = [AVAudioPlayer]() func playSound (soundFileName: String){ let soundFileNameURL = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource(soundFileName, ofType: "aif", inDirectory:"Sounds")!) if let player = players[soundFileNameURL] { //player for sound has been found if player.playing == false { //player is not in use, so use that one player.prepareToPlay() player.play() } else { // player is in use, create a new, duplicate, player and use that instead let duplicatePlayer = try! AVAudioPlayer(contentsOfURL: soundFileNameURL) //use 'try!' because we know the URL worked before. duplicatePlayer.delegate = self //assign delegate for duplicatePlayer so delegate can remove the duplicate once it's stopped playing duplicatePlayers.append(duplicatePlayer) //add duplicate to array so it doesn't get removed from memory before finishing duplicatePlayer.prepareToPlay() duplicatePlayer.play() } } else { //player has not been found, create a new player with the URL if possible do{ let player = try AVAudioPlayer(contentsOfURL: soundFileNameURL) players[soundFileNameURL] = player player.prepareToPlay() player.play() } catch { print("Could not play sound file!") } } } func playSounds(soundFileNames: [String]){ for soundFileName in soundFileNames { playSound(soundFileName) } } func playSounds(soundFileNames: String...){ for soundFileName in soundFileNames { playSound(soundFileName) } } func playSounds(soundFileNames: [String], withDelay: Double) { //withDelay is in seconds for (index, soundFileName) in soundFileNames.enumerate() { let delay = withDelay*Double(index) let _ = NSTimer.scheduledTimerWithTimeInterval(delay, target: self, selector: #selector(playSoundNotification(_:)), userInfo: ["fileName":soundFileName], repeats: false) } } func playSoundNotification(notification: NSNotification) { if let soundFileName = notification.userInfo?["fileName"] as? String { playSound(soundFileName) } } func audioPlayerDidFinishPlaying(player: AVAudioPlayer, successfully flag: Bool) { duplicatePlayers.removeAtIndex(duplicatePlayers.indexOf(player)!) //Remove the duplicate player once it is done }}
