我正在尝试使用 MediaPlayerElement 播放闪存驱动器中的视频,方法是在代码隐藏中设置其源代码。我已经验证了路径是正确的(至少我认为是正确的(,并且格式如下:D:\\video.mp4。当将其传递到CreateFromUri时,它说文件路径是错误的。
代码隐藏:
public sealed partial class MainPage : Page
{
public MainPage()
{
this.InitializeComponent();
GetDrive();
}
public async void GetDrive()
{
StorageFolder externalDevices = KnownFolders.RemovableDevices;
IReadOnlyList<StorageFolder> externalDrives = await externalDevices.GetFoldersAsync();
StorageFolder x = externalDrives[0];
IReadOnlyList<StorageFile> items = await x.GetFilesAsync();
foreach (StorageFile file in items)
{
try
{
Uri uri = new Uri(file.Path);
mediaPlayer.Source = MediaSource.CreateFromUri(uri);
}
catch (Exception ex)
{
}
}
}
}
页:
<Grid >
<MediaPlayerElement x:Name="mediaPlayer"
Width="400"
AutoPlay="True"
AreTransportControlsEnabled="True"/>
</Grid>
不能将文件路径参数直接传递给 Uri for CreateFromUri 方法。如果要按 URI 访问 UWP 中的资源,可以使用多个 URI(统一资源标识符(方案来引用来自应用包、应用的数据文件夹或云的文件。为什么不使用 CreateFromStorageFile 方法呢?
public async void GetDrive()
{
StorageFolder externalDevices = KnownFolders.RemovableDevices;
IReadOnlyList<StorageFolder> externalDrives = await externalDevices.GetFoldersAsync();
StorageFolder x = externalDrives[0];
IReadOnlyList<StorageFile> items = await x.GetFilesAsync();
foreach (StorageFile file in items)
{
try
{
mediaPlayer.Source = MediaSource.CreateFromStorageFile(file);
}
catch (Exception ex)
{
}
}
}