iOS播放音频简介

Play Sound only

import AVFoundation

let fileUrl = NSURL(fileURLWithPath: NSBundle.mainBundle().pathForResource("sound", ofType: "mp3")!)

aPlayer = try? AVAudioPlayer(contentsOfURL:fileUrl);

aPlayer.play();

aPlayer.pause()

//stop and reset to starting point      
aPlayer.stop()
aPlayer.currentTime = 0

Play Sound with UI

import MediaPlayer            

let p = MPMoviePlayerViewController(contentURL: fileUrl);

presentViewController(p, animated: true, completion: nil)

Record and Play Sound

import AVFoundation

var avRec:AVAudioRecorder!
var audioFileUrl:NSURL!
var avPlayer:AVAudioPlayer!

override func viewDidLoad() {

    super.viewDidLoad()

    FileUrl = (NSFileManager.defaultManager().URLsForDirectory(NSSearchPathDirectory.DocumentDirectory, inDomains: NSSearchPathDomainMask.AllDomainsMask)[0] as NSURL)
        .URLByAppendingPathComponent("rec")

    avRec = try? AVAudioRecorder(URL:audioFileUrl, settings: [:])

    avRec.prepareToRecord()
}

@IBAction func playRecBtnClicked(sender: AnyObject) {

    avPlayer = try? AVAudioPlayer(contentsOfURL: audioFileUrl)
    avPlayer.prepareToPlay()
    avPlayer.play()
}

@IBAction func stopRecBtnClicked(sender: AnyObject) {

    avRec.stop()
}

@IBAction func startRecBtnClicked(sender: AnyObject) {

    avRec.record()
}