Mp3ViewController.swift

import UIKit

import AVFoundation
var audioPlayer:AVAudioPlayer!

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
    
        let path = Bundle.main.path(forResource: "rain.mp3", ofType:nil)!
        let url = URL(fileURLWithPath: path)

        do {
            audioPlayer = try AVAudioPlayer(contentsOf: url)
            audioPlayer?.play()
            
        } catch let error {
            print(error.localizedDescription)
        }
    }

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


}