iOS高级应用开发 - AVAudioPlayer案例

import UIKit
import AVFoundation

class ViewController: UIViewController {

    var player: AVAudioPlayer?
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        let url = Bundle.main.url(forResource: "GoingHome", withExtension: "mp3")!
        
        player = try? AVAudioPlayer(contentsOf: url)
        player?.numberOfLoops = -1 //循环次数
        player?.enableRate = true //允许倍速播放
        player?.rate = 1.25 //播放倍速
    }
    @IBAction func play(_ sender: Any) {
        player?.play()
    }
    @IBAction func pause(_ sender: Any) {
        player?.pause()
    }
    @IBAction func stop(_ sender: Any) {
        player?.stop()
    }
    @IBAction func seek(_ sender: UISlider) {
        let value = sender.value
        player?.currentTime = Double(value) * (player?.duration ?? 0)
    }
    

}