private async void InitializeAsync()
{
//恢复上次关闭时保存的控件
var list = await TXDataFileIO.GetMessagesAsync();
if (list != null)
{
foreach (Models.DownloaderMessage ms in list)
{
DownloadBar db = new DownloadBar();
DownloadBarCollection.Add(db);
AbstractDownloader dw = AbstractDownloader.GetDownloaderFromType(ms.DownloaderType);
db.SetDownloader(dw);
dw.SetDownloaderFromBreakpoint(ms);
}
}
if (Settings.DownloadsFolderToken == null)
{
var contentDialog = new ContentDialog()
{
Title = Strings.AppResources.GetString("DownloadFolderPathIllegal"),
Content = Strings.AppResources.GetString("SetDownloadFolder"),
PrimaryButtonText = Strings.AppResources.GetString("Select"),
SecondaryButtonText = Strings.AppResources.GetString("Cancel"),
FullSizeDesired = false,
};
contentDialog.PrimaryButtonClick += async(sender, e) =>
{
var folderPicker = new FolderPicker();
folderPicker.FileTypeFilter.Add(".");
StorageFolder folder = null;
folder = await folderPicker.PickSingleFolderAsync();
if (folder == null)
{
App.Current.Exit();
}
else
{
Settings.DownloadsFolderToken = StorageApplicationPermissions
.MostRecentlyUsedList.Add(folder);
}
};
contentDialog.SecondaryButtonClick += (sender, e) =>
App.Current.Exit();
await contentDialog.ShowAsync();
}
}
/// <summary>
/// 在将要挂起应用程序执行时调用。
/// 无需知道应用程序会被终止还是会恢复，
/// 并让内存内容保持不变。
/// </summary>
/// <param name="sender">挂起的请求的源。</param>
/// <param name="e">有关挂起请求的详细信息。</param>
private async void OnSuspending(object sender, SuspendingEventArgs e)
{
int doneNum = 0;
Debug.WriteLine("OnSuspending");
var deferral = e.SuspendingOperation.GetDeferral();
if (Settings.IsNotificationShownWhenApplicationSuspended)
{
Toasts.ToastManager.ShowSimpleToast(
Strings.AppResources.GetString("ApplicationSuspendedTitle"),
Strings.AppResources.GetString("ApplicationSuspendedMessage")
);
}
//保存应用程序状态并停止任何后台活动
List <Models.DownloaderMessage> list = new List <Models.DownloaderMessage>();
MainPage.Current.DownloadBarManager.Invoke((collection) =>
{
foreach (Controls.DownloadBar bar in collection)
{
if (bar.downloader.State == Enums.DownloadState.Disposed ||
bar.downloader.State == Enums.DownloadState.Uninitialized)
{
continue;
}
if (bar.downloader.State == Enums.DownloadState.Done)
{
doneNum++;
if (doneNum > Settings.NormalRecordNumberParser[Settings.MaximumRecordsIndex])
{
continue;
}
}
bar.downloader.Pause();
list.Add(bar.downloader.Message);
}
});
await TXDataFileIO.SaveDownloadMessagesAsync(list); //保存未完成的下载
await StorageTools.StorageManager.GetCleanAsync();
deferral.Complete();
}
/// <summary>
/// 初始化单一实例应用程序对象。这是执行的创作代码的第一行，
/// 已执行，逻辑上等同于 main() 或 WinMain()。
/// </summary>
public App()
{
this.InitializeComponent();
this.Suspending += OnSuspending;
this.EnteredBackground += OnEnteringBackground;
this.LeavingBackground += OnLeavingBackground;
this.Resuming += OnResuming;
storeContext.OfflineLicensesChanged += async(s, e) =>
{
AppLicense = await s.GetAppLicenseAsync();
LicenseChanged?.Invoke(AppLicense);
}; //处理运行时版本信息更新
InitializeAppLicense(); //初始化版本信息
if (Settings.DownloadsFolderToken == null || !StorageApplicationPermissions.MostRecentlyUsedList
.ContainsItem(Settings.DownloadsFolderToken))
{
Settings.DownloadsFolderToken = null;
}
TXDataFileIO.StartInitializeMessages(); //不管有没有都要Start
Converters.ExtentionConverter.InitializeDictionary();
}
