Audio iOS 8 swift未播放音频文件

这是我正在使用的代码：

var aSound = NSURL(fileURLWithPath:  NSBundle.mainBundle().pathForResource("abc", ofType: "mp3"))

var audioPlayer = AVAudioPlayer()

        println(aSound)

        audioPlayer = AVAudioPlayer(contentsOfURL: aSound, error: nil)

        audioPlayer.prepareToPlay()

        audioPlayer.play()

我试图打印文件的路径，这是我在控制台中看到的

file:///Users/<username>/Library/Developer/CoreSimulator/Devices/<some GUID>/data/Containers/Bundle/Application/<some different GUID>/HelloWorld.app/abc.mp3

file:///Users//Library/Developer/CoreSimulator/Devices//data/Containers/Bundle/Application//HelloWorld.app/abc.mp3

我通过菜单中的“将文件添加到项目”将mp3添加到我的项目中。 当我运行模拟器时，它会自动添加到上面的位置吗

var audio: AVAudioPlayer = AVAudioPlayer()

@IBAction func playaudio(sender: AnyObject) //method for playing audio {

var audioPath = NSString(string: NSBundle.mainBundle().pathForResource("bus", ofType: "mp3")!)

    var error: NSError? = nil

    //instantiate the player
    audio = AVAudioPlayer(contentsOfURL: NSURL(string: audioPath as String), error: &error)
    audio.prepareToPlay()
    audio.play()
}

override func viewDidLoad() 
{

    super.viewDidLoad()

    // Do any additional setup after loading the view.
}

---

不要忘记导入AVFoundation Framework。

使用此功能在Swift中发声（您可以在想要发声的地方使用此功能。）

import UIKit
import AVFoundation

class ViewController: UIViewController {

    var audioPlayer = AVAudioPlayer()

    override func viewDidLoad() {
        super.viewDidLoad()

        var alertSound = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("fileName", ofType: "extension"))
        println(alertSound)
            AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback, error: nil)
        AVAudioSession.sharedInstance().setActive(true, error: nil)

        var error:NSError?
        audioPlayer = AVAudioPlayer(contentsOfURL: alertSound, error: &error)
        audioPlayer.prepareToPlay()
        audioPlayer.play()
    }

}

import SpriteKit
    func playEffectSound(filename: String){
         runAction(SKAction.playSoundFileNamed("\(filename)", waitForCompletion: false))
    }
// use this function to play sound

    playEffectSound("Sound File Name With Extension")
// Example :- playEffectSound("BS_SpiderWeb_CollectEgg_SFX.mp3")

首先添加SpriteKit框架

import UIKit
import AVFoundation

class ViewController: UIViewController {

    var audioPlayer = AVAudioPlayer()

    override func viewDidLoad() {
        super.viewDidLoad()

        var alertSound = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("fileName", ofType: "extension"))
        println(alertSound)
            AVAudioSession.sharedInstance().setCategory(AVAudioSessionCategoryPlayback, error: nil)
        AVAudioSession.sharedInstance().setActive(true, error: nil)

        var error:NSError?
        audioPlayer = AVAudioPlayer(contentsOfURL: alertSound, error: &error)
        audioPlayer.prepareToPlay()
        audioPlayer.play()
    }

}

import SpriteKit
    func playEffectSound(filename: String){
         runAction(SKAction.playSoundFileNamed("\(filename)", waitForCompletion: false))
    }
// use this function to play sound

    playEffectSound("Sound File Name With Extension")
// Example :- playEffectSound("BS_SpiderWeb_CollectEgg_SFX.mp3")

---

（audioPlayer需要是一个属性，以便播放器不会过早重新分配）的可能副本谢谢Martin。我完全没有注意到那条评论中的代码。让它发挥作用。