【Swift】音ファイルをダウンロードして鳴らしてみる

doge-man.com

import UIKit
import MediaPlayer

class ViewController: UIViewController {

    var audioPlayer:AVAudioPlayer!

    override func viewDidLoad() {
        super.viewDidLoad()
        let url = "https://○○/○○○.wav"
        self.downloadFileFromURL(url: URL(string:url)!)
   }

    func downloadFileFromURL(url:URL){

        let downloadTask:URLSessionDownloadTask = URLSession.shared.downloadTask(with: url as URL) { (URL, response, error) in
            self.play(url: URL!)
        }

        downloadTask.resume()

    }
    func play(url:URL) {
        print("playing \(url)")

        do {
            self.audioPlayer = try AVAudioPlayer(contentsOf: url as URL)
            audioPlayer.prepareToPlay()
            audioPlayer.volume = 1.0
            audioPlayer.play()
        } catch let error as NSError {
            //self.player = nil
            print(error.localizedDescription)
        } catch {
            print("AVAudioPlayer init failed")
        }

    }
}