アプリの起動時にスプラッシュ画面を表示してhttpwebrequestを作成し、リクエストが終了したらスプラッシュ画面を非表示にしてメインページを表示します。
これは私のスプラッシュ画面です:
private void ShowPopup()
{
this.popup = new Popup();
this.popup.Child = new PopupSplash();
this.popup.IsOpen = true;
StartLoadingData();
}
private void StartLoadingData()
{
backgroundWorker = new BackgroundWorker();
backgroundWorker.DoWork += new DoWorkEventHandler(backgroundWorker_DoWork);
backgroundWorker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(backgroundWorker_RunWorkerCompleted);
backgroundWorker.RunWorkerAsync();
}
void backgroundWorker_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
this.Dispatcher.BeginInvoke(() =>
{
this.popup.IsOpen = false;
}
);
}
void backgroundWorker_DoWork(object sender, DoWorkEventArgs e)
{
using (var db = new ListDataContext(ListDataContext.DBConnectionString))
{
if (!db.DatabaseExists())
{
db.CreateDatabase();
}
}
Thread.Sleep(4000);
}
これは私のhttpwebrequestです:
private void main_WebResponseAvailableEventHandler(object sender, string response, string url)
{
SearchResult result = new SearchResult(response, url);
PhoneApplicationService.Current.State["result"] = result;
this.NavigationService.Navigate(new Uri("/SearchPivotPage.xaml", UriKind.Relative));
}
private void HandleWebResponse(IAsyncResult asyncResult)
{
WebRequestState state = (WebRequestState)asyncResult.AsyncState;
HttpWebRequest request = state.Request;
string url = request.RequestUri.ToString();
state.Response = (HttpWebResponse)request.EndGetResponse(asyncResult);
if (state.Response != null)
{
StreamReader reader = new StreamReader(state.Response.GetResponseStream());
StringBuilder sb = new StringBuilder();
while (!reader.EndOfStream)
sb.Append(reader.ReadLine());
string text = sb.ToString();
Dispatcher.BeginInvoke(() =>
{
if (WebResponseAvailable != null)
{
WebResponseAvailable(this, text, url);
}
});
}
}
コンストラクターMainPage()で
....
ShowPopup();
HttpWebRequest movieRequest = (HttpWebRequest)WebRequest.Create(url);
WebRequestState state = new WebRequestState();
state.Request = movieRequest;
movieRequest.BeginGetResponse(new AsyncCallback(HandleWebResponse), state);
WebResponseAvailable += main_WebResponseAvailableEventHandler;
....
どうすればやりたいことができるのでしょうか?または、両方が他のスレッドにあるということは、これは不可能ですか?