ios - 在 Xcode 7/Swift 2 中播放音频不工作

Question

我目前正在使用 Swift 2 的 Xcode 7 beta 4，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

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")
        }
    }

希望这对您有所帮助!