IOS AVAudioPlayer 播放MP3

 1 import UIKit
 2 import AVFoundation
 3
 4 class ViewController：UIViewController,
 AVAudioPlayerDelegate {
 5 var audioPlayer：AVAudioPlayer = AVAudioPlayer()
 6 override func viewDidLoad() {
 7 super.viewDidLoad()
 8 // Do any additional setup after loading the view,
 typically from a nib.
 9 let path = Bundle.main.path(forResource：“music”,
 ofType：“mp3”)
 10 let soundUrl = URL(fileURLWithPath：path！)
 11
 12 do{
 13 try audioPlayer = AVAudioPlayer(contentsOf：
 soundUrl)
 14 audioPlayer.volume = 1.0
 15 audioPlayer.numberOfLoops = -1
 16 audioPlayer.delegate = self
 17 audioPlayer.play()
 18 } catch{
 19 print(error)
 20 }
 21 let stopMusic = UIButton(frame：CGRect(x：20, y：
 80, width：280, height：44))
 22 stopMusic.backgroundColor = UIColor.purple
 23 stopMusic.setTitle(“暂停/恢复音乐”, for：
 UIControlState.init(rawValue：0))
 24 stopMusic.addTarget(self, action：
selector(ViewController．pauseOrResumeMusic),
for：.touchUpInside)
 25 self.view.addSubview(stopMusic)
 26 }
 27 func pauseOrResumeMusic(){
 28 if self.audioPlayer.isPlaying {
 29 self.audioPlayer.pause()
 30 }
 31 else{
 32 self.audioPlayer.play()
 33 }
 34 }
 35 func audioPlayerBeginInterruption(_ player：
 AVAudioPlayer) {
 36 print(“音乐播放被打断。”)
 37 }
 38 func audioPlayerDidFinishPlaying(_ player：
 AVAudioPlayer, successfully flag：Bool) {
 39 print(“音乐播放完毕。”);
 40 }
 41 }