在 Xcode 7 / Swift 2 中播放音频不工作

Question

我目前正在使用 Xcode 7 beta 4 和 Swift 2，尝试播放音频。我的代码没有出现任何错误，但是当我按下播放按钮时，音频没有播放。我不知道出了什么问题。

import UIKit
import AVFoundation

class VesuviusViewController: UIViewController {

    @IBOutlet weak var PausePlay: UIButton!

    func playVes() {
        do {

        _ = try AVAudioPlayer(contentsOfURL: NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("Ves", ofType: "m4a")!))

        } catch {
            print("Error")
        }
    }

    @IBAction func playButtonPressed(sender: AnyObject) {
        playVes()
    }

    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.

    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.

    }
}

更新正确代码：

import UIKit
import AVFoundation

class VesuviusViewController: UIViewController {


@IBOutlet weak var PausePlay: UIButton!



@IBAction func playPressed(sender: AnyObject) {
    VesSet()
}
var audioPlayer: AVAudioPlayer!

    func VesSet(){


        do {
            self.audioPlayer =  try AVAudioPlayer(contentsOfURL: NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("Ves", ofType: "m4a")!))
            self.audioPlayer.play()

        } catch {
            print("Error")
        }


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

        // Do any additional setup after loading the view.

    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.

    }
}

Answer 1

不确定为什么会发生这种情况，但有多种方法可以在您的项目中实现声音。试试这个方法：

class Hello : UIViewController {

  var Audio1 = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("mySound", ofType: "wav")!)
  var AudioPlayer = AVAudioPlayer()

override func viewDidLoad() {

  AudioPlayer = AVAudioPlayer(contentsOfURL: Audio1, error: nil)
}

func playsound() {

  AudioPlayer.play()

}

Answer 2

试试这个：

var audioPlayer: AVAudioPlayer! // Global variable

及玩法：

func playVes() {
        do {
            self.audioPlayer =  try AVAudioPlayer(contentsOfURL: NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("Ves", ofType: "m4a")!))
            self.audioPlayer.play()

        } catch {
            print("Error")
        }
    }

希望对您有所帮助！

Answer 3

当前代码工作于 xCode 7.0 Swift 2.0 截至 2015 年 10 月 9 日仍在工作

//Declaration
var hitSoundPlayer: AVAudioPlayer?

//Added into the didMoveToView(view: SKView) Function
do {
    hitSoundPlayer = try AVAudioPlayer(contentsOfURL: hitSound)
        hitSoundPlayer!.prepareToPlay()
} catch _ {
        hitSoundPlayer = nil
}

//When you want to play it
hitSoundPlayer!.play()

在 Xcode 7 / Swift 2 中播放音频不工作

Playing audio in Xcode 7 / Swift 2 Not Working

audio

xcode

ios

xcode7

swift2