如何在Xamarin中播放系統聲音。表格

Question

我正在尋找輕量級內置系統跨平臺音效播放器。有些東西可能會像System.Console.Beep那樣發出蜂鳴聲，並且我可以直接從我的視圖模型中調用它。

我知道我可以使用提供者（策略）模式來投放平臺特定的實現或使用一些媒體播放器，如XamarinMediaManager。

Answer 1

您可以使用相關的服務

ANDROID

public class AudioService : IAudio 
{ 

    private MediaPlayer _mediaPlayer; 

    public bool PlayFile() 
    { 
     _mediaPlayer = MediaPlayer.Create(global::Android.App.Application.Context, Resource.Raw.test); 
     _mediaPlayer.Start(); 

     return true; 
    } 

} 

IOS

public class AudioService : IAudio 
{ 

private AVAudioPlayer _ringtoneAudioPlayer; 
public AudioService() 
{ 
    _ringtoneAudioPlayer = AVAudioPlayer.FromUrl(NSUrl.FromFilename("call.caf")); 
    _ringtoneAudioPlayer.NumberOfLoops = -1; // infinite 
} 

public void PlayFile() 
{ 
    if (_ringtoneAudioPlayer != null) 
    { 
     _ringtoneAudioPlayer.Stop(); 
    } 
    _ringtoneAudioPlayer.Play(); 
} 
} 

UWP

public class AudioService : IAudio 
{ 

    public async Task PlayAudioUWP(string fileName) 
    { 
     StorageFolder Folder = await Package.Current.InstalledLocation.GetFolderAsync("Assets"); 
     StorageFile sf = await Folder.GetFileAsync(fileName); 
     var PlayMusic = new MediaElement(); 
     PlayMusic.AudioCategory = Windows.UI.Xaml.Media.AudioCategory.Media; 
     PlayMusic.SetSource(await sf.OpenAsync(FileAccessMode.Read), sf.ContentType); 
     PlayMusic.Play(); 
    } 

} 

如果你願意，你可以嘗試這個插件

https://www.nuget.org/packages/XamarinAudioManager/