c# - 如何从手机和SD卡中获取音频文件并进行播放？

Question

如何从手机和SD卡中获取音频文件并进行播放？
我只是一个设计师，但是看到代码我就会明白。

因此，我需要的是执行此操作的代码。

Answer 1

Petzold向我们展示了这一点。按下一个按钮，从库中播放随机曲调。

XAML:

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

后面的C#代码:

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。