如何播放聲音文件在斯威夫特2

Question

我使用下面的代碼，但聽不到聲音。

var audioPlayer:AVAudioPlayer? 

override func viewDidLoad() { 

    super.viewDidLoad() 

    let path = NSBundle.mainBundle().pathForResource("SecondBeep", ofType: "wav") 
    let url = NSURL.fileURLWithPath(path!) 

    do { 
     try audioPlayer = AVAudioPlayer(contentsOfURL: url) 
    } catch { 
     print("Player not available") 
    } 
    audioPlayer?.prepareToPlay() 
    audioPlayer?.play() 

} 

AVFoundation正確導入並且聲音文件被添加到項目中。檢查了其他stackoverflow主題，但它沒有幫助。

試圖更改爲URLForResource，但它並不能幫助了。

let path = NSBundle.mainBundle().URLForResource("SecondBeep", withExtension: "wav") 
    let url = NSURL.fileURLWithPath(path!.path!) 

我怎樣才能解決這個問題？

Answer 1

import UIKit 
import AVFoundation 
class ViewController: UIViewController { 
    var audioPlayer:AVAudioPlayer! 
    override func viewDidLoad() { 
     super.viewDidLoad() 
     if let myAudioUrl = NSBundle.mainBundle().URLForResource("SecondBeep", withExtension: "wav") { 
      do { 
       audioPlayer = try AVAudioPlayer(contentsOfURL: myAudioUrl) 
       audioPlayer.prepareToPlay() 
       audioPlayer.play() 
      } catch let error as NSError { 
       print(error.localizedDescription) 
      } 
     } 
    } 
    override func didReceiveMemoryWarning() { 
     super.didReceiveMemoryWarning() 
     // Dispose of any resources that can be recreated. 
    } 
} 

Answer 2

import UIKit 
import AVFoundation 
class ViewController: UIViewController { 

    var audioPlayer: AVAudioPlayer! // Global variable 

    override func viewDidLoad() 
    { 
     super.viewDidLoad() 

     playVes() 


     // Do any additional setup after loading the view, typically from a nib. 
    } 

    func playVes() { 
     do { 
      self.audioPlayer = try AVAudioPlayer(contentsOfURL: NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("123", ofType: "mp3")!)) 
      self.audioPlayer.play() 

     } catch { 
      print("Error") 
     } 
    } 
    override func didReceiveMemoryWarning() { 
     super.didReceiveMemoryWarning() 
     // Dispose of any resources that can be recreated. 
    } 


}