使用 AVAudioPlayer 在 Swift 中播放远程 mp3 文件

Question

我是 Swift 新手，但我想更改我的视图控制器以在我的 iOS 应用程序中播放远程 mp3 文件。我从这段代码开始在本地播放一首歌曲，它可以工作（之后为播放器提供功能）：

import AVFoundation

class Music1ViewController: UIViewController {

    //5 -
    var songPlayer = AVAudioPlayer()
    //15 -
    var hasBeenPaused = false

    //6 -
    func prepareSongAndSession() {

        do {
            //7 - Insert the song from our Bundle into our AVAudioPlayer
            songPlayer = try AVAudioPlayer(contentsOf: URL.init(fileURLWithPath: Bundle.main.path(forResource: "localsong", ofType: "mp3")!))
            //8 - Prepare the song to be played
            songPlayer.prepareToPlay()

查看AVAudioPlayer documentation 后，.prepareToPlay() 预加载缓冲区，这让我觉得我需要做的就是更改初始化程序以定位 URL。

然后我改变初始化器：

songPlayer = try AVAudioPlayer(contentsOf: URL(string: "https://s3.amazonaws.com/kargopolov/kukushka.mp3")!)

我在 XCode 中没有收到任何错误，但是当我运行它时，我在控制台中看到 Thread 1: EXC_BAD_ACCESS (code=1, address=0x48) 的错误，这让我觉得我正在接近这个错误。

有没有更好的方法来访问远程 mp3 文件？

Answer 1

试试这个代码：

您需要将AVKit 和AVFoundation 添加到您的frameworks 路径并导入它们：

import UIKit
import AVKit
import AVFoundation

class ViewController: UIViewController {

    var player = AVPlayer()

    override func viewDidLoad() {
        super.viewDidLoad()
    }

    @IBAction func localPress(_ sender: Any) { 
        let path = Bundle.main.resourcePath!+"/sound.mp3"
        print(path)
        let url = URL(fileURLWithPath: path)

        let playerItem = AVPlayerItem(url: url)
        player = AVPlayer(playerItem: playerItem)
        player.play()
    }// i have created a btn for playing a local file, this is it's action


    @IBAction func urlPressed(_ sender: Any) {

        let playerItem = AVPlayerItem(url: URL(string: "https://yourURL.mp3")!)
        player = AVPlayer(playerItem: playerItem)
        player.play()
    }// i have created another btn for playing a URL file, this is it's action

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
    }
}

Answer 2

我的方法

func preparePlayer() {
        guard let url = URL(string: "https://yourURL.mp3") else {
            print("Invalid URL")
            return
        }
        do {
            let session = AVAudioSession.sharedInstance()
            try session.setCategory(AVAudioSessionCategoryPlayback)
            let soundData = try Data(contentsOf: url)
            audioPlayer = try AVAudioPlayer(data: soundData)
            audioPlayer.volume = 1
            let minuteString = String(format: "%02d", (Int(audioPlayer.duration) / 60))
            let secondString = String(format: "%02d", (Int(audioPlayer.duration) % 60))
            print("TOTAL TIMER: \(minuteString):\(secondString)")
        } catch {
            print(error)
        }
    }