游戏风格：

Question

我想用Swift播放声音。

我的代码在Swift 1.0中运行，但现在它在Swift 2或更新版本中不再有效。

override func viewDidLoad() {
    super.viewDidLoad()

    let url:NSURL = NSBundle.mainBundle().URLForResource("soundName", withExtension: "mp3")!

    do { 
        player = try AVAudioPlayer(contentsOfURL: url, fileTypeHint: nil) 
    } catch _{
        return
    }

    bgMusic.numberOfLoops = 1
    bgMusic.prepareToPlay()


    if (Data.backgroundMenuPlayed == 0){
        player.play()
        Data.backgroundMenuPlayed = 1
    }
}

Answer 1

Swift 3 ：

import AVFoundation

/// **must** define instance variable outside, because .play() will deallocate AVAudioPlayer 
/// immediately and you won't hear a thing
var player: AVAudioPlayer?

func playSound() {
    guard let url = Bundle.main.url(forResource: "soundName", withExtension: "mp3") else {
        print("url not found")
        return
    }

    do {
        /// this codes for making this app ready to takeover the device audio
        try AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback)
        try AVAudioSession.sharedInstance().setActive(true)

        /// change fileTypeHint according to the type of your audio file (you can omit this)

        player = try AVAudioPlayer(contentsOf: url, fileTypeHint: AVFileTypeMPEGLayer3)

        // no need for prepareToPlay because prepareToPlay is happen automatically when calling play()
        player!.play()
    } catch let error as NSError {
        print("error: \(error.localizedDescription)")
    }
}

本地资产的最佳做法是将其放在assets.xcassets内，然后像这样加载文件：

func playSound() {
    guard let url = Bundle.main.url(forResource: "soundName", withExtension: "mp3") else {
        print("url not found")
        return
    }

    do {
        /// this codes for making this app ready to takeover the device audio
        try AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback)
        try AVAudioSession.sharedInstance().setActive(true)

        /// change fileTypeHint according to the type of your audio file (you can omit this)

        /// for iOS 11 onward, use :
        player = try AVAudioPlayer(contentsOf: url, fileTypeHint: AVFileType.mp3.rawValue)

        /// else :
        /// player = try AVAudioPlayer(contentsOf: url, fileTypeHint: AVFileTypeMPEGLayer3)

        // no need for prepareToPlay because prepareToPlay is happen automatically when calling play()
        player!.play()
    } catch let error as NSError {
        print("error: \(error.localizedDescription)")
    }
}

Answer 2

iOS 12-Xcode 10 beta 6-Swift 4.2

仅使用1个IBAction并将所有按钮指向该1个动作。

import AVFoundation

    var player = AVAudioPlayer()

@IBAction func notePressed(_ sender: UIButton) {

        print(sender.tag) // testing button pressed tag

        let path = Bundle.main.path(forResource: "note\(sender.tag)", ofType : "wav")!
        let url = URL(fileURLWithPath : path)

        do {
            player = try AVAudioPlayer(contentsOf: url)
            player.play()

        } catch {

            print ("There is an issue with this code!")

        }

}

Answer 3

如果代码没有产生任何错误，但您没有听到声音 - 请将播放器创建为实例：

   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：）

Answer 4

Swift 3

import AVFoundation


var myAudio: AVAudioPlayer!

    let path = Bundle.main.path(forResource: "example", ofType: "mp3")!
    let url = URL(fileURLWithPath: path)
do {
    let sound = try AVAudioPlayer(contentsOf: url)
    myAudio = sound
    sound.play()
} catch {
    // 
}

//If you want to stop the sound, you should use its stop()method.if you try to stop a sound that doesn't exist your app will crash, so it's best to check that it exists.

if myAudio != nil {
    myAudio.stop()
    myAudio = nil
}

Answer 5

对于 Swift 5“AVFoundation”\

简单的代码，没有错误处理，可以从本地路径播放音频

import AVFoundation
var audio:AVPlayer!

func stopAlarm() {
    // To pause or stop audio in swift 5 audio.stop() isn't working
    audio.pause()
}

func playAlarm() {
    // need to declare local path as url
    let url = Bundle.main.url(forResource: "Alarm", withExtension: "mp3")
    // now use declared path 'url' to initialize the player
    audio = AVPlayer.init(url: url!)
    // after initialization play audio its just like click on play button
    audio.play()
}

Answer 6

Swift 4（与iOS 12兼容）

@dynamic

Answer 7

经过Swift 4和iOS 12的测试：

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)
    }
}

Answer 8

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

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

    func cheer() { apCheer?.play() }
    func plonk() { apPlonk?.play() }
    func crack() { apCrack?.play() } .. etc
}

代码中的任何地方

sfx.explosion()
sfx.cheer()

Answer 9

代码非常简单

将音频文件添加到Xcode中，并按给出的代码进行编码

import AVFoundation

class ViewController: UIViewController{

   var audioPlayer = AVAudioPlayer() //declare as Globally

   override func viewDidLoad() {
        super.viewDidLoad()

        guard let sound = Bundle.main.path(forResource: "audiofilename", ofType: "mp3") else {
            print("error to get the mp3 file")
            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()
}

Answer 10

首先导入这些库

import AVFoundation

import AudioToolbox

像这样设置委托

   AVAudioPlayerDelegate

在按钮操作或操作上编写这个漂亮的代码：

guard let url = Bundle.main.url(forResource: "ring", withExtension: "mp3") else { return }
    do {
        try AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback)
        try AVAudioSession.sharedInstance().setActive(true)
        player = try AVAudioPlayer(contentsOf: url, fileTypeHint: AVFileType.mp3.rawValue)
        guard let player = player else { return }

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

100％在我的项目中工作并经过测试

Answer 11

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)
        }

    }

}

Answer 12

快速4、4.2和5

从URL和项目（本地文件）播放音频

import UIKit
import AVFoundation

class ViewController: UIViewController{

var audioPlayer : AVPlayer!

override func viewDidLoad() {
        super.viewDidLoad()
// call what ever function you want.
    }

    private func playAudioFromURL() {
        guard let url = URL(string: "https://geekanddummy.com/wp-content/uploads/2014/01/coin-spin-light.mp3") else {
            print("error to get the mp3 file")
            return
        }
        do {
            audioPlayer = try AVPlayer(url: url as URL)
        } catch {
            print("audio file error")
        }
        audioPlayer?.play()
    }

    private func playAudioFromProject() {
        guard let url = Bundle.main.url(forResource: "azanMakkah2016", withExtension: "mp3") else {
            print("error to get the mp3 file")
            return
        }

        do {
            audioPlayer = try AVPlayer(url: url)
        } catch {
            print("audio file error")
        }
        audioPlayer?.play()
    }

}

Answer 13

import AVFoundation

import AudioToolbox

public final class MP3Player : NSObject {
    
    // Singleton class
    static let shared:MP3Player = MP3Player()
    
    private var player: AVAudioPlayer? = nil
    
    // Play only mp3 which are stored in the local
    public func playLocalFile(name:String) {
        guard let url = Bundle.main.url(forResource: name, withExtension: "mp3") else { return }

        do {
            try AVAudioSession.sharedInstance().setCategory(AVAudioSession.Category.playback)
            try AVAudioSession.sharedInstance().setActive(true)
            player = try AVAudioPlayer(contentsOf: url, fileTypeHint: AVFileType.mp3.rawValue)
            guard let player = player else { return }

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

调用此功能

MP3Player.shared.playLocalFile(name: "JungleBook")

Answer 14

func playSound(_ buttonTag : Int){

    let path = Bundle.main.path(forResource: "note\(buttonTag)", ofType : "wav")!
    let url = URL(fileURLWithPath : path)

    do{
        soundEffect = try AVAudioPlayer(contentsOf: url)
        soundEffect?.play()
        // to stop the spound .stop()
    }catch{
        print ("file could not be loaded or other error!")
    }
}

适用于swift 4最新版本。 ButtonTag将是您界面上按钮的标签。 Notes位于与Main.storyboard平行的文件夹中的文件夹中。每个音符都被命名为note1，note2等.ButtonTag从点击的按钮给出数字1,2等，作为参数传递

Answer 15

Swift 版本：5.4 及以上

import AVFoundation
var player: AVAudioPlayer?

func playSound() {
    guard let path = Bundle.main.path(forResource: "beep", ofType:"mp3") else {
        return }
    let url = URL(fileURLWithPath: path)

    do {
        player = try AVAudioPlayer(contentsOf: url)
        player?.play()
        
    } catch let error {
        print(error.localizedDescription)
    }
}

Answer 16

很简单，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()

Answer 17

import AVFoundation
var player:AVAudioPlayer!

 func Play(){
        guard let path = Bundle.main.path(forResource: "KurdishSong", ofType: "mp3")else{return}
        let soundURl = URL(fileURLWithPath: path)
        player = try? AVAudioPlayer(contentsOf: soundURl)
        player.prepareToPlay()
        player.play()
        //player.pause()
        //player.stop()
    }

如何使用Swift播放声音？

17 个答案:

Swift 4（与iOS 12兼容）

游戏风格：

Swift 版本：5.4 及以上