/// <summary>
/// Initializes a new instance of the <see cref="App"/> class.
/// </summary>
/// <param name="repositories">The repositories.</param>
/// <param name="downloader">The downloader.</param>
/// <param name="episodeSaver">The episode saver.</param>
public App(
IRepositoryFactory repositories,
IPodCastDownloader downloader,
IEpisodeSaver episodeSaver)
{
this.backgroundDownloader =
new BackgroundDownloader(
repositories,
downloader,
episodeSaver);
this.Startup +=
this.App_Startup;
this.DispatcherUnhandledException +=
App_DispatcherUnhandledException;
}
public async static Task SaveAsync(
Uri fileUri,
StorageFolder folder,
string fileName)
{
// Hitting System.UnauthorizedAccessException when the file already exists.
// If they already have it, keep what is there.
var file = await folder.CreateFileAsync(fileName, CreationCollisionOption.OpenIfExists);
var downloader = new BackgroundDownloader();
var download = downloader.CreateDownload(
fileUri,
file);
await download.StartAsync();
}
private async void btn_PauseAll_Click(object sender, RoutedEventArgs e)
{
var ls = await BackgroundDownloader.GetCurrentDownloadsForTransferGroupAsync(DownloadHelper2.group);
foreach (var item in ls)
{
try
{
item.Pause();
}
catch (Exception)
{
}
}
// LoadDowning();
}
private async void btn_D_Pause_Click(object sender, RoutedEventArgs e)
{
try
{
var ls = await BackgroundDownloader.GetCurrentDownloadsForTransferGroupAsync(DownloadHelper2.group);
var data = (sender as Button).DataContext as DisplayModel;
var item = ls.First(x => x.Guid.ToString() == data.guid);
item.Pause();
data.backgroundTransferStatus = item.Progress.Status;
}
catch (Exception)
{
}
}
public override async Task <bool> OpenFileAsync(ICloudFile fileToDownload, bool forceDownload = false, bool showOpenWith = false)
{
var sourceObject = new Uri(fileToDownload.DownloadSourceLocation);
IStorageFile file = null;
if (fileToDownload.IsQualifiedAsSmallDownload() && !forceDownload)
{
file = await StorageFile.CreateStreamedFileFromUriAsync(fileToDownload.Name,
sourceObject,
null);
}
else
{
//TODO: Add feature to send as attachment. :D
//TODO: Verify the code waits till the background download is complete before launching the file.
var downloader = new BackgroundDownloader();
file = await DownloadManager.DownloadStorageFileAsync(fileToDownload);
DownloadOperation operation = downloader.CreateDownload(sourceObject, file);
var result = await operation.StartAsync();
file = result.ResultFile;
}
//SAD: the following did not work somehow
//var result = await _liveClient.BackgroundDownloadAsync(objectToDownload.DownloadSourceLocation,);
//var options = new LauncherOptions();
//options.DisplayApplicationPicker = true;
//var result2 = await _liveClient.GetAsync(objectToDownload.Id);
bool launchResult;
//Consider LaunchUriAsync(...) for else part?
if (showOpenWith)
{
var options = new LauncherOptions {
DisplayApplicationPicker = true
};
launchResult = await Launcher.LaunchFileAsync(file, options);
}
else
{
launchResult = await Launcher.LaunchFileAsync(file);
}
return(launchResult);
}
private async void start_Click(object sender, RoutedEventArgs e)
{
Uri source;
if (!Uri.TryCreate(sourceUrl.Text.Trim(), UriKind.Absolute, out source))
{
status.Log(LocalizableStrings.BACKGROUND_TRANSFER_INVALID_URI);
return;
}
string destination = localFile.Text.Trim();
if (string.IsNullOrWhiteSpace(destination))
{
status.Log(LocalizableStrings.BACKGROUND_TRANSFER_INVALID_FILENAME);
return;
}
StorageFile destinationFile = null;
try
{
destinationFile = await KnownFolders.PicturesLibrary.CreateFileAsync(
destination, CreationCollisionOption.GenerateUniqueName);
}
catch (Exception ex)
{
Debug.WriteLine("BackgroundTransferPage.start_Click: " + ex.ToString());
status.Log(ex.Message);
return;
}
try
{
BackgroundDownloader downloader = new BackgroundDownloader();
if (downloader != null)
{
DownloadOperation download = downloader.CreateDownload(source, destinationFile);
download.Priority = BackgroundTransferPriority.Default;
await HandleDownloadAsync(download, true);
}
}
catch (Exception ex)
{
status.Log(ex.Message);
}
}
private async void StartDownload(BackgroundTransferPriority priority)
{
// Validating the URI is required since it was received from an untrusted source (user input).
// The URI is validated by calling Uri.TryCreate() that will return 'false' for strings that are not valid URIs.
// Note that when enabling the text box users may provide URIs to machines on the intrAnet that require
// the "Private Networks (Client and Server)" capability.
Uri source;
if (!Uri.TryCreate(serverAddressField.Text.Trim(), UriKind.Absolute, out source))
{
rootPage.NotifyUser("Invalid URI.", NotifyType.ErrorMessage);
return;
}
string destination = fileNameField.Text.Trim();
if (string.IsNullOrWhiteSpace(destination))
{
rootPage.NotifyUser("A local file name is required.", NotifyType.ErrorMessage);
return;
}
StorageFile destinationFile;
try
{
destinationFile = await KnownFolders.PicturesLibrary.CreateFileAsync(
destination,
CreationCollisionOption.GenerateUniqueName);
}
catch (FileNotFoundException ex)
{
rootPage.NotifyUser("Error while creating file: " + ex.Message, NotifyType.ErrorMessage);
return;
}
BackgroundDownloader downloader = new BackgroundDownloader();
DownloadOperation download = downloader.CreateDownload(source, destinationFile);
Log(String.Format(CultureInfo.CurrentCulture, "Downloading {0} to {1} with {2} priority, {3}",
source.AbsoluteUri, destinationFile.Name, priority, download.Guid));
download.Priority = priority;
// Attach progress and completion handlers.
await HandleDownloadAsync(download, true);
}
internal static async Task InitializeAsync()
{
Uri source = new Uri($"http://api.iuwp.top:9000/{Services.SQLiteService.DBNAME}");
var localFolder = ApplicationData.Current.LocalFolder;
var file = await localFolder.TryGetItemAsync(SQLiteService.DBNAME);
var property = await file.GetBasicPropertiesAsync();
if (file == null || property.Size < 51200)
{
Helpers.NotifyPopup notify;
if (NetworkHelper.Instance.ConnectionInformation.IsInternetAvailable == false)
{
notify = new Helpers.NotifyPopup("第一次需要连接网络，下载数据库，请连接网络后重新打开应用", TimeSpan.FromSeconds(60));
notify.Show();
return;
}
notify = new Helpers.NotifyPopup("首次启动，正在下载数据库...", TimeSpan.FromSeconds(5));
notify.Show();
var destinationFile = await localFolder.CreateFileAsync(
SQLiteService.DBNAME, CreationCollisionOption.ReplaceExisting);
var downloaded = new BackgroundDownloader();
var download = downloaded.CreateDownload(source, destinationFile);
var operation = await download.StartAsync();
if (operation.Progress.Status != BackgroundTransferStatus.Completed)
{
notify = new Helpers.NotifyPopup("数据库下载失败，请检查网络状况后，重新开启应用", TimeSpan.FromSeconds(60));
notify.Show();
}
else
{
notify = new Helpers.NotifyPopup("数据库下载完成，即将自动重启应用", TimeSpan.FromSeconds(5));
notify.Show();
await Task.Delay(TimeSpan.FromSeconds(5));
await CoreApplication.RequestRestartAsync(string.Empty);
}
}
else
{
return;
}
}
// Click on find-adress button
// Forming omniBox
private async void button5_Click(object sender, RoutedEventArgs e)
{
string address = "http://geocode-maps.yandex.ru/1.x/?geocode=" + textBox.Text;
StorageFile myDB;
try
{
listBox.Visibility = Visibility.Visible;
controlsBG2.Visibility = Visibility.Visible;
controlsBG.Visibility = Visibility.Collapsed;
listBox.Items.Clear();
StorageFile tempFile2 = await Windows.Storage.ApplicationData.Current.LocalFolder.CreateFileAsync("multi", CreationCollisionOption.ReplaceExisting);
BackgroundDownloader manager2 = new BackgroundDownloader();
var operation = manager2.CreateDownload(new Uri(address), tempFile2);
IProgress <DownloadOperation> progressH = new Progress <DownloadOperation>((p) =>
{ /*Debug.WriteLine("Transferred: {0}, Total: {1}", p.Progress.BytesReceived, p.Progress.TotalBytesToReceive);*/ });
await operation.StartAsync().AsTask(progressH);
//Debug.WriteLine("BacgroundTransfer created");
// Read the data
myDB = await Windows.Storage.ApplicationData.Current.LocalFolder.GetFileAsync("multi");
var alldata = await Windows.Storage.FileIO.ReadLinesAsync(myDB);
datalines = new string[alldata.Count];
int ko = 0; // counter
int start; // first no-hashtag sybol in string
foreach (var line in alldata)
{
datalines[ko] = line.ToString();
ko++;
if ((start = datalines[ko - 1].IndexOf("<text>")) != -1)
{
// forming omniBox
int nameLeng = datalines[ko - 1].Length;
listBox.Items.Add(datalines[ko - 1].Substring(start + 6, nameLeng - 6 - start - 7));
}
}
await myDB.DeleteAsync();
}
catch (Exception)
{
MessageDialog dialog = new MessageDialog("Ошибка при поиске Вашего запроса. Очистите карту и попробуйте построить маршрут снова.", "Ошибка поиска #007101");
}
}
// Take Picture
private async Task TakePicture()
{
try
{
PictureProgress.Value = 0;
Uri uri = new Uri("http://" + IP + ":8080");
StorageFile storageFile = await KnownFolders.PicturesLibrary.CreateFileAsync("robot.jpg", CreationCollisionOption.GenerateUniqueName);
BackgroundDownloader downloader = new BackgroundDownloader();
DownloadOperation download = downloader.CreateDownload(uri, storageFile);
await PerformDownload(download);
}
catch (Exception ex)
{
LogMessage(string.Format("Take New Image Error: {0}", ex.Message));
}
}
public static async Task preloadMp3SingleAsync(string mp3RemoteUrl)
{
var url = new Uri(mp3RemoteUrl);
string filename = System.IO.Path.GetFileName(url.LocalPath);
if (await isFilePresent(filename))
{
// do nothing
}
else
{
var destinationFile = await ApplicationData.Current.LocalFolder.CreateFileAsync(filename, CreationCollisionOption.ReplaceExisting);
var download = new BackgroundDownloader().CreateDownload(url, destinationFile);
await download.StartAsync().AsTask();
}
}
private async void CreateButDoNotStartDownload_Click(object sender, RoutedEventArgs e)
{
BackgroundDownloader downloader = CreateDownloader();
downloader.ProxyCredential = new Windows.Security.Credentials.PasswordCredential();
//downloader.ProxyCredential.UserName = "******";
Debug.WriteLine(downloader.ProxyCredential.UserName.Length);
Debug.WriteLine(downloader.ProxyCredential.UserName);
Debug.WriteLine(downloader.ProxyCredential.Password.Length);
Debug.WriteLine(downloader.ProxyCredential.Password);
IStorageFile file = await ApplicationData.Current.LocalFolder.CreateFileAsync("neverStarted.txt", CreationCollisionOption.GenerateUniqueName);
var aDownload = downloader.CreateDownload(new Uri("http://example.com"), file);
Debug.WriteLine(aDownload.Guid);
}
public static async Task StartGalleryDownloadAsync(ExGallery gallery, StorageFolder galleryFolder)
{
// Download image list
await gallery.LoadAllItemsAsync();
BackgroundTransferCompletionGroup completionGroup = new BackgroundTransferCompletionGroup();
BackgroundTaskBuilder builder = new BackgroundTaskBuilder()
{
Name = "DownloadFinished"
};
builder.SetTrigger(completionGroup.Trigger);
BackgroundTaskRegistration taskRegistration = builder.Register();
BackgroundDownloader downloader = new BackgroundDownloader(completionGroup)
{
TransferGroup = BackgroundTransferGroup.CreateGroup("Gallery")
};
downloader.TransferGroup.TransferBehavior = BackgroundTransferBehavior.Parallel;
// Create tasks and file for each pic
StorageFile[] files = new StorageFile[gallery.Count];
foreach (var image in gallery)
{
files[gallery.IndexOf(image)] = await galleryFolder.CreateFileAsync($"{gallery.IndexOf(image) + 1}.jpg", CreationCollisionOption.ReplaceExisting);
}
// Get the image uri and download data for each pic
List <Task> getImageUriTasks = new List <Task>();
foreach (var image in gallery)
{
if (files[gallery.IndexOf(image)] != null)
{
getImageUriTasks.Add(StartImageDownloadAsync(gallery, image, files[gallery.IndexOf(image)], downloader));
}
}
await Task.WhenAll(getImageUriTasks);
downloader.CompletionGroup.Enable();
}
public void ChangeToChapter(string chapter)
{
chapter = simple_to_full_chapter_[chapter];
if (chapter == current_chapter_)
{
return;
}
current_chapter_ = chapter;
string url = website_ + current_chapter_;
if (!chapter_to_background_.ContainsKey(chapter))
{
List <Image> new_storage = new List <Image>();
chapter_to_images_[chapter] = new_storage;
BackgroundDownloader bd = new BackgroundDownloader(url, new_storage);
chapter_to_background_[chapter] = bd;
bd.Start();
}
current_page_index_ = 0;
List <Image> storage = chapter_to_images_[current_chapter_];
Image img = null;
while (img == null)
{
try {
Monitor.Enter(storage);
if (storage.Count == 0)
{
continue;
}
else
{
img = storage[current_page_index_];
}
}
finally {
Monitor.Exit(storage);
}
}
MangaKitsuneForm.Inst.DrawImage(img);
}
public static BackgroundDownloader CreateBackgroundDownloader()
{
BackgroundTransferCompletionGroup completionGroup = new BackgroundTransferCompletionGroup();
BackgroundTaskBuilder builder = new BackgroundTaskBuilder();
builder.TaskEntryPoint = "Tasks.CompletionGroupTask";
builder.SetTrigger(completionGroup.Trigger);
// The system automatically unregisters the BackgroundTransferCompletionGroup task when it triggers.
// You do not need to unregister it explicitly.
BackgroundTaskRegistration taskRegistration = builder.Register();
BackgroundDownloader downloader = new BackgroundDownloader(completionGroup);
return(downloader);
}
private async void Btn_Resume_Items_Click(object sender, RoutedEventArgs e)
{
var data = (sender as Button).DataContext as DownloadDisplayInfo;
var ls = await BackgroundDownloader.GetCurrentDownloadsForTransferGroupAsync(DownloadHelper2.group);
foreach (var item in ls.Where(x => data.items.Count(y => y.guid == x.Guid.ToString()) != 0))
{
try
{
item.Resume();
}
catch (Exception)
{
}
}
//LoadDowning();
}
private async void AttachDownloads_Click(object sender, RoutedEventArgs e)
{
try
{
CurrentBlock.Text = String.Empty;
IReadOnlyList <DownloadOperation> downloads = await BackgroundDownloader.GetCurrentDownloadsAsync();
foreach (var download in downloads)
{
AttachDownloadOperationHandles(download);
}
}
catch (Exception ex)
{
DisplayException(ex);
}
}
public async void StartDownloadAsync(string serverAddress)
{
// Validating the URI is required since it was received from an untrusted source (user input).
// The URI is validated by calling Uri.TryCreate() that will return 'false' for strings that are not valid URIs.
// Note that when enabling the text box users may provide URIs to machines on the intrAnet that require
// the "Home or Work Networking" capability.
if (!Uri.TryCreate(serverAddress.Trim(), UriKind.Absolute, out Uri source))
{
//rootPage.ShowMessageBox($"Invalid URI ({serverAddress.Trim()}).");
return;
}
int index = serverAddress.LastIndexOf('/');
string destination = serverAddress.Substring(index + 1);
if (string.IsNullOrWhiteSpace(destination))
{
await ContentDialogs.ShowSingleButtonContentDialogAsync("A local file name is required.");
return;
}
StorageFile destinationFile;
try
{
destinationFile = await SharedData.ArchivedMessagesFolder.CreateFileAsync(destination, CreationCollisionOption.ReplaceExisting);
}
catch (FileNotFoundException ex)
{
await ContentDialogs.ShowSingleButtonContentDialogAsync("Error while creating file: " + ex.Message);
return;
}
BackgroundDownloader downloader = new BackgroundDownloader();
DownloadOperation download = downloader.CreateDownload(source, destinationFile);
log.Info(String.Format($"Downloading {source.AbsoluteUri} to {destinationFile.Name}, {download.Guid}"));
download.Priority = BackgroundTransferPriority.Default;
// Attach progress and completion handlers.
await HandleDownloadAsync(download, true);
}
public static async Task<StorageFile> DownloadAsync(string version, DownloadOption option = DownloadOption.Default)
{
if (!MinecraftAPI.IsInitialized)
{
Debug.WriteLine($"MinecraftService is not initialized. Proceeds to initialize it.");
await InitializeAsync();
}
if (!MinecraftAPI.Contains(version))
{
Debug.WriteLine($"Version {version} does not exist in available links.");
return null;
}
if (await ContainsZip(version))
{
Debug.WriteLine($"Version {version} is already downloaded. No further steps required.");
return null;
}
var uri = new Uri(MinecraftAPI.Get(version)?.Downloads.Client?.Url);
var root = await GetOrCreateRootFolderAsync();
var file = await root?.CreateFileAsync(version + ".zip", CreationCollisionOption.ReplaceExisting);
try
{
BackgroundDownloader downloader = new BackgroundDownloader();
DownloadOperation download = downloader?.CreateDownload(uri, file);
Debug.WriteLine($"Downloading: {uri?.AbsolutePath}...");
await download.StartAsync();
Debug.WriteLine($"...Download completed: {uri?.AbsolutePath}");
}
catch (Exception e)
{
Debug.WriteLine($"Error when downloading {uri.AbsolutePath}:\n{e.Message}");
return null;
}
await CreateResourceListAsync(version);
if (option == DownloadOption.ExtractFiles)
await Extract(version);
return file;
}
public static async Task <string> DownloadDefinitionsDatabaseWork()
{
var appData = ApplicationData.Current;
var urlString = await FetchLatestDefinitionsPath();
Log($"urlString: {urlString}");
// TODO: check to see if it's already downloaded?
var source = new Uri(urlString);
Log($"source {source}");
var baseName = Path.GetFileNameWithoutExtension(urlString);
var destFileName = $"{baseName}.zip";
var destinationFile =
await appData.LocalCacheFolder.CreateFileAsync(destFileName, CreationCollisionOption.ReplaceExisting);
Log($"Downloading {source} to {destinationFile.Path}");
var downloader = new BackgroundDownloader();
var download = downloader.CreateDownload(source, destinationFile);
await download.StartAsync();
Log("maybe the download finished?");
Log("Unzipping");
await Task.Run(() => ZipFile.ExtractToDirectory(destinationFile.Path, appData.LocalCacheFolder.Path, Encoding.UTF8, true));
var definitionsDbFile = Path.Combine(appData.LocalCacheFolder.Path, $"{baseName}.content");
Log($"maybe finished unzipping? {definitionsDbFile}");
if (!File.Exists(definitionsDbFile))
{
Log("Handle the definitions not existing?");
}
AppState.SaveSetting(SettingsKey.DefinitionsPath, definitionsDbFile);
Log($"All finished, definitions at {definitionsDbFile}");
return(definitionsDbFile);
}
/// <summary>
/// 恢复已经开始的下载
/// </summary>
/// <param name="infos"></param>
/// <returns></returns>
public async void DiscoverActiveDownloadsAsync(ObservableCollection <DownloadInfo> infos)
{
_activeDownloads.Clear();
_cts.Clear();
DownloadInfo info = null;
try
{
var downloads = await BackgroundDownloader.GetCurrentDownloadsAsync();
if (downloads.Count > 0)
{
await Task.Run(async() =>
{
var tasks = new List <Task>(downloads.Count);
foreach (var download in downloads)
{
info = infos.FirstOrDefault(v => v.DownloadGuid == download.Guid);
if (info != null)
{
tasks.Add(HandleDownloadAsync(download, info, false));
}
}
await Task.WhenAll(tasks);
});
}
else
{
_isDownloading = false;
foreach (var downInfo in infos)
{
downInfo.DownloadState = DownloadState.Pause;
}
}
}
catch (Exception ex)
{
_isDownloading = false;
if (info != null)
{
DownloadFailture(info, ex.Message);
}
}
}
/// <summary>
/// args[0] : url, arg[1] : StorageFolder, args[2] : fileName, arg[3] : forceDownload
/// </summary>
/// <param name="args"></param>
/// <returns></returns>
public async Task <StorageFile> Download(params object[] args)
{
if (args.Length < 4)
{
throw new ArgumentException();
}
string url = (string)args[0];
StorageFolder folder = (StorageFolder)args[1];
string fileName = (string)args[2];
bool forceDownload = (bool)args[3];
bool fileExist = false;
StorageFile file = null;
try
{
file = await folder.GetFileAsync(fileName);
fileExist = true;
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
fileExist = false;
}
if (fileExist == false || forceDownload)
{
try
{
file = await folder.CreateFileAsync(fileName);
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
}
var downloader = new BackgroundDownloader();
var operation = downloader.CreateDownload(new Uri(url), file);
await operation.StartAsync();
}
return(file);
}
async void PrepareSourse()
{
while (MusicRes == "shit")
{
} //not get resourse
StorageFolder MyDownloadFolder;
// 定位 folder
try
{
MyDownloadFolder = await StorageApplicationPermissions.FutureAccessList.GetFolderAsync(App.MyDownLoadFolder);
}
catch (Exception)
{
MyDownloadFolder = await DownloadsFolder.CreateFolderAsync("Music", CreationCollisionOption.GenerateUniqueName);
StorageApplicationPermissions.FutureAccessList.AddOrReplace(App.MyDownLoadFolder, MyDownloadFolder);
}
// try to open exist file
try
{
StorageFile music = await MyDownloadFolder.GetFileAsync(SongPLayingName.Text + MusicRes.Substring(0, 4));
var mediaSource = MediaSource.CreateFromStorageFile(music);
App.Musicplayer.Source = mediaSource;
mediaSource.OpenOperationCompleted += MediaSource_OpenOperationCompleted;
}
// not exist, download it
catch (Exception)
{
StorageFile destinationFile = await MyDownloadFolder.CreateFileAsync(SongPLayingName.Text + MusicRes.Substring(0, 4), CreationCollisionOption.FailIfExists);
var downloader = new BackgroundDownloader();
var downloadOperation = downloader.CreateDownload(new Uri(MusicRes.Substring(4)), destinationFile);
await downloadOperation.StartAsync().AsTask();
var mediaSource = MediaSource.CreateFromStorageFile(destinationFile);
App.Musicplayer.Source = mediaSource;
mediaSource.OpenOperationCompleted += MediaSource_OpenOperationCompleted;
}
}
private async void MediaSourceDownloadOperation()
{
//<SnippetCreateMediaSourceFromDownload>
StorageFile destinationFile = await KnownFolders.VideosLibrary.CreateFileAsync("file.mp4", CreationCollisionOption.GenerateUniqueName);
var downloader = new BackgroundDownloader();
var downloadOperation = downloader.CreateDownload(new Uri("http://server.com/file.mp4"), destinationFile);
MediaSource mediaSource =
MediaSource.CreateFromDownloadOperation(downloadOperation);
//</SnippetCreateMediaSourceFromDownload>
//<SnippetStartDownload>
downloadOperation.IsRandomAccessRequired = true;
var startAsyncTask = downloadOperation.StartAsync().AsTask();
mediaPlayerElement.Source = mediaSource;
//</SnippetStartDownload>
}
public void Stop_Normal_OK()
{
// Arrange
BackgroundDownloader downloader =
new BackgroundDownloader(
TestApp.Repositories,
TestApp.PodCastDownloader,
TestApp.EpisodeSaver);
downloader.Start();
Thread.Sleep(100);
// Act
downloader.Stop();
// Assert
Thread.Sleep(1000);
}
/// <summary>
/// Downloads a file asynchronously.
/// </summary>
/// <param name="uri">The web-address to download the file from.</param>
/// <param name="fileName">The name of the file to save to.</param>
/// <param name="folder">The folder to download the file to.</param>
public static async Task <StorageFile> DownloadFileAsync(Uri uri, string fileName, StorageFolder folder)
{
// Create download file path.
var downloadFilePath = Path.Combine(folder.Path, fileName);
// Create download file.
var downloadFile = await folder.CreateFileAsync(fileName, CreationCollisionOption.GenerateUniqueName);
// Download file.
var downloader = new BackgroundDownloader();
var downloadOperation = downloader.CreateDownload(uri, downloadFile);
// Wait for download to complete.
await downloadOperation.StartAsync();
// Return the downloaded file.
return(downloadFile);
// Add to gallery. TODO: Is this needed? Maybe revamp it so it doesn't do things twice.
//await AddFileToGalleryAsync(vm, downloadFile, folder);
}
public async Task InitTasks()
{
IReadOnlyList <DownloadOperation> download;
try {
download = await BackgroundDownloader.GetCurrentDownloadsAsync();
} catch (Exception e) {
if (BackgroundTransferError.GetStatus(e.HResult) == WebErrorStatus.Unknown)
{
throw;
}
return;
}
if (download.Count > 0)
{
await Task.WhenAll(download.Select((item) => HandleDownloadAsync(item, false)));
}
}
private async void DownloadManager(string _requestUrl, string _title, string _thumb, string _type)
{
Thumbail = _thumb;
Title = _title;
var bgDownloader = new BackgroundDownloader();
string result_title = _title.Replace("-", " ").Replace("&", " ").Replace("/", " ").Replace("!", " ").Replace("(", "").Replace(":", "").Replace(")", "");
//FolderPicker fo = new FolderPicker();
//fo.SuggestedStartLocation = PickerLocationId.Downloads;
//fo.FileTypeFilter.Add(_type);
// StorageFolder folder = await fo.PickSingleFolderAsync();
StorageFolder folder = KnownFolders.VideosLibrary;
var part = await folder.CreateFileAsync(result_title + _type, CreationCollisionOption.ReplaceExisting);
DownloadOperation downloadOperation = bgDownloader.CreateDownload(new Uri(_requestUrl), part);
await StartDonwloadAsync(downloadOperation);
}
public static async void SavePicture(object sender, RoutedEventArgs e)
{
var savePicker = new FileSavePicker();
savePicker.SuggestedStartLocation = PickerLocationId.PicturesLibrary;
savePicker.FileTypeChoices.Add("Photo", new List <string>()
{
"." + (sender as MenuFlyoutItem).Tag.ToString().Split('.').Last()
});
savePicker.SuggestedFileName = "Avatar";
var file = await savePicker.PickSaveFileAsync();
var downloader = new BackgroundDownloader();
var download = downloader.CreateDownload(new Uri((sender as MenuFlyoutItem).Tag.ToString()), file);
await download.StartAsync();
}
private static void CreateNotifications(BackgroundDownloader downloader)
{
var successToastXml = ToastNotificationManager.GetTemplateContent(ToastTemplateType.ToastText01);
successToastXml.GetElementsByTagName("text").Item(0).InnerText =
"Downloads completed successfully.";
ToastNotification successToast = new ToastNotification(successToastXml);
downloader.SuccessToastNotification = successToast;
var failureToastXml = ToastNotificationManager.GetTemplateContent(ToastTemplateType.ToastText01);
failureToastXml.GetElementsByTagName("text").Item(0).InnerText =
"At least one download completed with failure.";
ToastNotification failureToast = new ToastNotification(failureToastXml);
downloader.FailureToastNotification = failureToast;
}
private async void Page_Loaded(object sender, RoutedEventArgs e)
{
var downloads = await BackgroundDownloader.GetCurrentDownloadsAsync();
foreach (var item in downloads)
{
var download = new WtDownloadOperation
{
Name = item.ResultFile.Name,
Extension = item.ResultFile.FileType,
DownloadOperation = item
};
Downloads.Add(download);
await download.DownloadOperation
.AttachAsync()
.AsTask(CancellationToken.None, new Progress <DownloadOperation>(ProgressChanged));
}
}
