Xamarin IOS:无法从互联网播放mp3
本文关键字:互联网 播放 mp3 IOS Xamarin | 更新日期: 2023-09-27 17:56:00
我阅读了很多关于这个问题的文档,但我没有看到任何答案。
我有一个 Xamarin 表单应用程序,用于播放来自 Groove 音乐服务的 mp3 示例音乐。
在Android上,一切都工作正常。在 iOS 上,我无法播放声音。我得到了URL,但无法听到任何东西(我能够播放本地mp3)
我看到使用SWIFT的人也出现了这个问题:如何在iOS中从URL播放MP3
我还在 Xamarin 论坛上找到了几个示例,但没有声音:https://forums.xamarin.com/discussion/19883/how-do-i-get-the-avplayer-to-play-an-mp3-from-a-remote-url
这是我使用的代码:
公共类 音频服务 : IAudio { 受保护的字符串文件名 = 字符串。空; 受保护的AVPlayer播放器;
public bool IsPlaying { get; private set; }
public void Init(string fileName)
{
//FileName = fileName;
string second = "http://progdownload.zune.net/145/119/034/170/audio.mp3?rid=0b80911a-ba3b-42ec-b17f-c242ba087024-s4-nl-BE-music-asset-location";
FileName = second;
QueueFile();
}
public async void PlayStream(string uri)
{
Init(uri);
System.Diagnostics.Debug.WriteLine("Enter in function");
Player.Play();
System.Diagnostics.Debug.WriteLine("Play sound");
System.Diagnostics.Debug.WriteLine(FileName);
IsPlaying = true;
System.Diagnostics.Debug.WriteLine(IsPlaying);
}
public void Pause()
{
IsPlaying = false;
Player.Pause();
}
public void Stop()
{
IsPlaying = false;
if (Player == null) return;
Player.Dispose();
Player = null;
}
public bool HasFile
{
get { return Player != null; }
}
private void QueueFile()
{
if (string.IsNullOrWhiteSpace(FileName))
{
throw new Exception("No file specified to play");
}
using (var url = NSUrl.FromString(FileName))
{
var test = AVAsset.FromUrl(url);
var playerItem = AVPlayerItem.FromAsset(test);
// if Player is null, we're creating a new instance and seeking to the spot required
// otherwise we simply resume from where we left off.
if (Player == null)
{
Player = AVPlayer.FromPlayerItem(playerItem);
if (Player == null)
{
// todo: what should we do if the file doesn't exist?
return;
}
}
}
}}
(IAudio只是实现播放流和停止)
如果您单击该网址,您的浏览器将能够播放音乐http://progdownload.zune.net/145/119/034/170/audio.mp3?rid=0b80911a-ba3b-42ec-b17f-c242ba087024-s4-nl-BE-music-asset-location
有没有人能够从互联网上播放mp3
info.list 文件中的答案。您需要将其添加到您的信息列表中:
<key>NSAppTransportSecurity</key><dict>
<key>NSAllowsArbitraryLoads</key>
<true/></dict>
我遇到了同样的问题并解决了它。
我已经为您的代码进行了一些清理:)这就是我们得到的,包括检测游戏结束
public class AudioService
{
#region Members
protected AVPlayer Player;
#endregion
#region Properties
public bool IsPlaying { get; private set; }
public bool HasFile => Player != null;
public Action MediaEnded { get; set; }
#endregion
#region Public Methods
public void PlayStream(string uri)
{
try
{
if (Player != null)
Player.Dispose();
Player = null;
QueueFile(uri);
Player.Play();
IsPlaying = true;
}
catch (Exception ex)
{
IsPlaying = false;
Crashes.TrackError(ex);
}
}
public void Pause()
{
IsPlaying = false;
Player.Pause();
}
public void Stop()
{
IsPlaying = false;
if (Player == null)
return;
Player.Dispose();
Player = null;
}
public void QueueFile(string fileName)
{
if (string.IsNullOrWhiteSpace(fileName))
{
return;
}
using (var url = NSUrl.FromString(fileName))
{
var asset = AVAsset.FromUrl(url);
var playerItem = AVPlayerItem.FromAsset(asset);
if (Player == null)
{
Player = AVPlayer.FromPlayerItem(playerItem);
if (Player == null)
{
return;
}
else
{
NSNotificationCenter.DefaultCenter.AddObserver(AVPlayerItem.DidPlayToEndTimeNotification, OnPlayerDidFinishPlaying, NSObject.FromObject(playerItem));
}
}
}
}
#endregion
#region Private Methods
private void OnPlayerDidFinishPlaying(NSNotification notification)
{
IsPlaying = false;
MediaEnded?.Invoke();
}
#endregion