private async void CheckUpdate_OnClick(object sender, RoutedEventArgs e)
{
CheckUpdateButton.IsEnabled = false;
CheckupdateRing.Visibility = Visibility.Visible;
try
{
var updateInfo = await OnlineUpdateManager.GetUpdateInfoAsync();
if (updateInfo == null)
{
UpdateStatusBlock.Text = "已经是最新版本，无需更新。";
}
else
{
if (App.CurrentApp.NewUpdateInfo == null || App.CurrentApp.NewUpdateInfo.NewVersion != updateInfo.NewVersion)
{
App.CurrentApp.NewUpdateInfo = updateInfo;
ShowUpdateInfo(updateInfo);
}
}
}
catch
{
MessageBox.Show("检查更新时出现错误，请稍候重试。");
}
finally
{
CheckupdateRing.Visibility = Visibility.Collapsed;
CheckUpdateButton.IsEnabled = true;
}
}
private async void Download_OnClick(object sender, RoutedEventArgs e)
{
if (App.CurrentApp.NewUpdateInfo == null)
{
return;
}
CheckUpdateButton.IsEnabled = false;
DownloadButton.IsEnabled = false;
DownloadProgress.Visibility = Visibility.Visible;
try
{
await OnlineUpdateManager.SetupUpdateAsync(App.CurrentApp.NewUpdateInfo, new Progress <DownloadProgress>(d =>
{
Dispatcher.InvokeAsync(() => DownloadProgress.Value = d.CompletedPercentage,
DispatcherPriority.Normal);
UpdateStatusBlock.Text = d.Status;
}));
UpdateStatusBlock.Text = "准备就绪，下次启动时将会自动更新。";
}
catch
{
UpdateStatusBlock.Text = "准备更新过程中发生错误，请重试。";
DownloadButton.IsEnabled = true;
}
finally
{
CheckUpdateButton.IsEnabled = true;
}
}
protected override void OnContentRendered(EventArgs e)
{
base.OnContentRendered(e);
var checkUpdateTask = OnlineUpdateManager.GetUpdateInfoAsync();
checkUpdateTask.ContinueWith(t =>
{
var updateInfo = t.Result;
if (updateInfo == null)
{
return;
}
if (App.CurrentApp.NewUpdateInfo == null || App.CurrentApp.NewUpdateInfo.NewVersion != t.Result.NewVersion)
{
App.CurrentApp.NewUpdateInfo = updateInfo;
Dispatcher.InvokeAsync(() => ShowUpdateInfo(updateInfo));
}
});
}
private static string GetVersionInfo()
{
return(OnlineUpdateManager.GetCurrentVersion().ToString());
}
