如何从手机和SD卡获取音频文件并播放它们？

Question

如何从手机和SD卡获取音频文件并播放它们？ 我只是一名设计师，但当我看到它时我明白了代码。

所以我需要的是一个代码就是这么做的。

Answer 1

Petzold向我们展示了这一点。按一个按钮，从库中播放一个随机曲调。

XAML：

  <Button Content="Button" HorizontalAlignment="Left" Margin="177,160,0,0" VerticalAlignment="Top"/> 

C＃代码背后：使用Microsoft.Xna.Framework.Media

;

private void Button_Click(object sender, RoutedEventArgs e) 
    { 
     Random random = new Random(); // new random variable 
     MediaLibrary mediaLib = new MediaLibrary(); // this is where it grabs your whole music library and enumerates everything. If you break here, you can see it. 

     AlbumCollection albums = mediaLib.Albums; // pick which song you want. 
     Album album = albums[random.Next(albums.Count)]; 
     SongCollection songs = mediaLib.Songs; 
     Song song = songs[random.Next(songs.Count)]; 
     MediaPlayer.Play(song); // this plays the song. 
    } 

就这么简单。