我正在尝试在AVAudioPlayer实例上播放多个声音文件，但是当播放一个声音时，另一个声音停止播放。我不能一次播放多个声音。这是我的代码：
import AVFoundation
class GSAudio{
static var instance: GSAudio!
var soundFileNameURL: NSURL = NSURL()
var soundFileName = ""
var soundPlay = AVAudioPlayer()
func playSound (soundFile: String){
GSAudio.instance = self
soundFileName = soundFile
soundFileNameURL = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource(soundFileName, ofType: "aif", inDirectory:"Sounds")!)
do{
try soundPlay = AVAudioPlayer(contentsOfURL: soundFileNameURL)
} catch {
print("Could not play sound file!")
}
soundPlay.prepareToPlay()
soundPlay.play ()
}
}
任何人都可以通过告诉我如何一次播放多个声音文件来帮助我吗？任何帮助深表感谢。
非常感谢，凯
音频停止的原因是因为您只设置了一个AVAudioPlayer，所以当您要求该类播放另一个声音时，您正在使用新的AVAudioPlayer实例替换旧实例。你基本上都在覆盖它。
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字典的通用音频管理器。
我更喜欢后一种选择，因为它允许更清晰的代码，也更有效。您可以检查以前是否已经为声音制作了播放器，而不是制作新播放器。
无论如何，我为你重新上课，这样它就能同时播放多个声音。它也可以播放相同的声音（它不会取代以前的声音实例）希望它有所帮助！
该类是单例，因此要访问该类使用：
GSAudio.sharedInstance
例如，播放您要调用的声音：
GSAudio.sharedInstance.playSound("AudioFileName")
并立刻播放一些声音：
GSAudio.sharedInstance.playSounds("AudioFileName1", "AudioFileName2")
或者您可以在某个地方加载数组中的声音并调用接受数组的playSounds函数：
let sounds = ["AudioFileName1", "AudioFileName2"]
GSAudio.sharedInstance.playSounds(sounds)
我还添加了一个playSounds函数，它允许您以级联的格式延迟播放的每个声音。所以：
let soundFileNames = ["SoundFileName1", "SoundFileName2", "SoundFileName3"]
GSAudio.sharedInstance.playSounds(soundFileNames, withDelay: 1.0)
会在sound1之后播放sound2，然后sound3会在sound2之后播放一秒钟等。
这是班级：
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
}
}
这是一个Swift 4版本的@Oliver Wilkinson代码，带有一些安全检查和改进的代码格式：
import Foundation
import AVFoundation
class GSAudio: NSObject, AVAudioPlayerDelegate {
static let sharedInstance = GSAudio()
private override init() { }
var players: [URL: AVAudioPlayer] = [:]
var duplicatePlayers: [AVAudioPlayer] = []
func playSound(soundFileName: String) {
guard let bundle = Bundle.main.path(forResource: soundFileName, ofType: "aac") else { return }
let soundFileNameURL = URL(fileURLWithPath: bundle)
if let player = players[soundFileNameURL] { //player for sound has been found
if !player.isPlaying { //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
do {
let duplicatePlayer = try AVAudioPlayer(contentsOf: soundFileNameURL)
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()
} catch let error {
print(error.localizedDescription)
}
}
} else { //player has not been found, create a new player with the URL if possible
do {
let player = try AVAudioPlayer(contentsOf: soundFileNameURL)
players[soundFileNameURL] = player
player.prepareToPlay()
player.play()
} catch let error {
print(error.localizedDescription)
}
}
}
func playSounds(soundFileNames: [String]) {
for soundFileName in soundFileNames {
playSound(soundFileName: soundFileName)
}
}
func playSounds(soundFileNames: String...) {
for soundFileName in soundFileNames {
playSound(soundFileName: soundFileName)
}
}
func playSounds(soundFileNames: [String], withDelay: Double) { //withDelay is in seconds
for (index, soundFileName) in soundFileNames.enumerated() {
let delay = withDelay * Double(index)
let _ = Timer.scheduledTimer(timeInterval: delay, target: self, selector: #selector(playSoundNotification(_:)), userInfo: ["fileName": soundFileName], repeats: false)
}
}
@objc func playSoundNotification(_ notification: NSNotification) {
if let soundFileName = notification.userInfo?["fileName"] as? String {
playSound(soundFileName: soundFileName)
}
}
func audioPlayerDidFinishPlaying(_ player: AVAudioPlayer, successfully flag: Bool) {
if let index = duplicatePlayers.index(of: player) {
duplicatePlayers.remove(at: index)
}
}
}
我创建了一个帮助库，简化了Swift中的播放声音。它创建AVAudioPlayer的多个实例，以允许同时多次播放相同的声音。您可以从Github下载或使用Cocoapods导入。
这是链接：SwiftySound
用法尽可能简单：
Sound.play(file: "sound.mp3")
所有答案都是发布代码页面;它不需要那么复杂。
// Create a new player for the sound; it doesn't matter which sound file this is
let soundPlayer = try AVAudioPlayer( contentsOf: url )
soundPlayer.numberOfLoops = 0
soundPlayer.volume = 1
soundPlayer.play()
soundPlayers.append( soundPlayer )
// In an timer based loop or other callback such as display link, prune out players that are done, thus deallocating them
checkSfx: for player in soundPlayers {
if player.isPlaying { continue } else {
if let index = soundPlayers.index(of: player) {
soundPlayers.remove(at: index)
break checkSfx
}
}
}