使用存储文件夹播放 .mp3 UWP

Question

我想做一个小项目。就像一个带有工作笑话的音板。但我无法在 UWP 中播放声音。我发现了这个：

private async System.Threading.Tasks.Task Button_ClickAsync(object sender, RoutedEventArgs e)
        {

            MediaElement PlayMusic = new MediaElement();
            PlayMusic.AudioCategory = Windows.UI.Xaml.Media.AudioCategory.Media;
            StorageFolder Folder = Windows.ApplicationModel.Package.Current.InstalledLocation;
            Folder = await Folder.GetFolderAsync("folder");
            StorageFile sf = await Folder.GetFileAsync("song.mp3");
            PlayMusic.SetSource(await sf.OpenAsync(FileAccessMode.Read), sf.ContentType);
            PlayMusic.Play();
        }`

但我不知道我必须把声音放在哪里。 我已经尝试过 Assets 文件夹，但它没有用。 我是新手，很抱歉我的英语不好。

Answer 1

您可以使用 FileOpenPicker 选择要播放的文件，也可以将文件放在 assets 文件夹中并使用 uri 访问。在下面添加了两个示例代码 sn-p

//从文件播放

private async void PlayFromFile(object sender, RoutedEventArgs e)
    {
        //Play from file
        FileOpenPicker openPicker = new FileOpenPicker();
        openPicker.ViewMode = PickerViewMode.Thumbnail;
        openPicker.FileTypeFilter.Add(".m4p");
        openPicker.FileTypeFilter.Add(".mp3");
        var sf = await openPicker.PickSingleFileAsync();
        MediaPlayer mediaPlayer = new MediaPlayer();
        mediaPlayer.Source = MediaSource.CreateFromStorageFile(sf);
        mediaPlayer.Play();           
    }

//从assets文件夹播放

 private void PlayFromAssetsFolder(object sender,RoutedEventArgs e)
    {
        //Play from assets folder
        MediaPlayer mediaPlayer = new MediaPlayer();
        mediaPlayer.Source = MediaSource.CreateFromUri(new Uri("ms-appx:///Assets/audio.mp3"));
        mediaPlayer.Play();
    }