这是在Swift中查找和播放音频文件的基本代码。

将音频文件添加到Xcode中，并添加下面的代码。

import AVFoundation

class ViewController: UIViewController {

   var audioPlayer = AVAudioPlayer() // declare globally

   override func viewDidLoad() {
        super.viewDidLoad()

        guard let sound = Bundle.main.path(forResource: "audiofilename", ofType: "mp3") else {
            print("Error getting the mp3 file from the main bundle.")
            return
        }
        do {
            audioPlayer = try AVAudioPlayer(contentsOf: URL(fileURLWithPath: sound))
        } catch {
            print("Audio file error.")
        }
        audioPlayer.play()
    }

    @IBAction func notePressed(_ sender: UIButton) { // Button action
        audioPlayer.stop()
    }
}

这很简单，而且可以完成工作!

import AVFoundation
var player: AVAudioPlayer!
            
    let url = Bundle.main.url(forResource: "sound_name", withExtension: "mp3")
     
    player = try! AVAudioPlayer(contentsOf: url!)
    player.play()

如果代码没有产生任何错误，但你听不到声音-创建播放器作为一个实例:

   static var player: AVAudioPlayer!

对我来说，当我做这个改变时，第一个解决方案起作用了:)

Swift 4和iOS 12测试:

import UIKit
import AVFoundation
class ViewController: UIViewController{
    var player: AVAudioPlayer!
    override func viewDidLoad() {
        super.viewDidLoad()
    }

    func playTone(number: Int) {
        let path = Bundle.main.path(forResource: "note\(number)", ofType : "wav")!
        let url = URL(fileURLWithPath : path)
        do {
            player = try AVAudioPlayer(contentsOf: url)
            print ("note\(number)")
            player.play()
        }
        catch {
            print (error)
        }
    }

    @IBAction func notePressed(_ sender: UIButton) {
        playTone(number: sender.tag)
    }
}

游戏风格:

文件Sfx.swift

import AVFoundation

public let sfx = Sfx.shared
public final class Sfx: NSObject {
    
    static let shared = Sfx()
    
    var apCheer: AVAudioPlayer? = nil
    // etc
    
    private override init() {
        guard let s = Bundle.main.path(forResource: "cheer", ofType: "mp3") else { print("Sfx woe"); return }
        do { apCheer = try AVAudioPlayer(contentsOf: URL(fileURLWithPath: s)) } catch { print("Sfx woe"); return }
        // etc
    }
    
    func cheer() { apCheer?.play() }
    func plonk() { apPlonk?.play() }
    func crack() { apCrack?.play() }
    // etc
}

只要吃一个……

    var apCheer: AVAudioPlayer? = nil

对于你的每一个音频刺。所以你可能有5 20 10等等。

对于每一个，简单地复制/粘贴两行初始化代码:

guard let s = Bundle.main.path(forResource: "cheer", ofType: "mp3") else { return print("Sfx woe") }
do { apCheer = try AVAudioPlayer(contentsOf: URL(fileURLWithPath: s)) } catch { return print("Sfx woe") }

然后，在任何地方，任何代码，任何文件，你都可以:

sfx.cheer()
sfx.crack()

import UIKit
import AVFoundation

class ViewController: UIViewController{

    var player: AVAudioPlayer?

    override func viewDidLoad() {
        super.viewDidLoad()
    }

    @IBAction func notePressed(_ sender: UIButton) {

        guard let url = Bundle.main.url(forResource: "note1", withExtension: "wav") else { return }

        do {
            try AVAudioSession.sharedInstance().setCategory((AVAudioSession.Category.playback), mode: .default, options: [])
            try AVAudioSession.sharedInstance().setActive(true)


            /* The following line is required for the player to work on iOS 11. Change the file type accordingly*/
            player = try AVAudioPlayer(contentsOf: url, fileTypeHint: AVFileType.wav.rawValue)

            /* iOS 10 and earlier require the following line:
             player = try AVAudioPlayer(contentsOf: url, fileTypeHint: AVFileTypeMPEGLayer3) *//

            guard let player = player else { return }

            player.play()

        } catch let error {
            print(error.localizedDescription)
        }

    }

}