Play audio url in iOS Swift

playAudio.swift

//
//  PlayAudio.swift
//  Samples
//
//  Created by VikasK on 22/04/19.
//  Copyright © 2019 Vikaskore Software. All rights reserved.
//

import UIKit
import AVFoundation

class PlayAudio: UIViewController, AVAudioPlayerDelegate  {
    
    var audioPlayer:AVAudioPlayer!
    
    @objc func playAudioButtonTapped(_ sender: UIButton) {
        if sender.currentBackgroundImage == #imageLiteral(resourceName: "playAudio") { //Play
            sender.setBackgroundImage(#imageLiteral(resourceName: "pause"), for: .normal) // set stop image
            let url = URL(string: urlstring!)
            downloadFileFromURL(url: url!)
        } else {//stop
            sender.setBackgroundImage(#imageLiteral(resourceName: "playAudio"), for: .normal) // set play image
            audioPlayer.stop()
        }
    }
    func downloadFileFromURL(url: URL){
        var downloadTask:URLSessionDownloadTask
        downloadTask = URLSession.shared.downloadTask(with: url) { (url, response, error) in
            self.play(url: url!)
        }
        downloadTask.resume()
    }
    func play(url:URL) {
        do {
            audioPlayer = try AVAudioPlayer(contentsOf: url as URL)
            audioPlayer.prepareToPlay()
            audioPlayer.volume = 2.0
            audioPlayer.play()
        } catch let error as NSError {
            print(error.localizedDescription)
        } catch {
            print("AVAudioPlayer init failed")
        }
        
    }
}