browserfieldを "; deviceside = true" with BlackBerry sim

Question

Apress Advanced BlackBerry Developmentに記載されているサンプルコードを使用しようとしています。問題は、MDSでシミュレータを起動すると、Webページが表示されることです。しかし、 "; deviceside = true"をurlに追加してから、MDSなしでシミュレータを起動すると、Webページは表示されません。白い画面のみが表示されます。

import java.io.IOException; 
import java.util.*; 

import javax.microedition.io.*; 

import net.rim.device.api.browser.field.*; 
import net.rim.device.api.io.http.HttpHeaders; 
import net.rim.device.api.system.Application; 
import net.rim.device.api.ui.*; 
import net.rim.device.api.ui.component.LabelField; 
import net.rim.device.api.ui.container.*; 

public class BrowserScreen extends MainScreen implements Runnable, 
     RenderingApplication 
{ 
    private RenderingSession renderSession; 
    private LabelField status; 
    private StatusUpdater updater; 
    private String url; 

    public BrowserScreen() 
    { 
     renderSession = RenderingSession.getNewInstance(); 
     status = new LabelField("Loading..."); 
     add(status); 
     updater = new StatusUpdater(status); 
     url = "http://www.google.com"; 
     (new Thread(this)).start(); 
    } 

    private class BrowserFieldContainer extends VerticalFieldManager 
    { 
     public BrowserFieldContainer() 
     { 
      super(Manager.VERTICAL_SCROLL | Manager.VERTICAL_SCROLLBAR 
        | Manager.FIELD_HCENTER); 
     } 

     public void sublayout(int maxWidth, int maxHeight) 
     { 
      int width = BrowserScreen.this.getWidth(); 
      int height = BrowserScreen.this.getHeight(); 
      super.sublayout((int) (width * .9), height/2); 
     } 
    } 

    public void run() 
    { 
     HttpConnection conn = null; 
     try 
     { 
      conn = (HttpConnection) Connector.open(url); 
      updater.sendDelayedMessage("Connection opened"); 
      BrowserContent browserContent = renderSession.getBrowserContent(
        conn, this, null); 
      if (browserContent != null) 
      { 
       Field field = browserContent.getDisplayableContent(); 
       if (field != null) 
       { 
        synchronized (Application.getEventLock()) 
        { 
         deleteAll(); 
         add(status); 
         add(new LabelField("Your search starts here.")); 
         BrowserFieldContainer container = 
          new BrowserFieldContainer(); 
         container.add(field); 
         add(container); 
         add(new LabelField("Don't forget to tip the service!")); 
        } 
       } 
       browserContent.finishLoading(); 
      } 
     } 
     catch (Exception e) 
     { 
      updater.sendDelayedMessage(e.getMessage()); 
     } 
     finally 
     { 
      try 
      { 
       if (conn != null) 
       { 
        conn.close(); 
       } 
      } 
      catch (Exception e) 
      { 
      } 
     } 
    } 

    public Object eventOccurred(Event event) 
    { 
     if (event.getUID() == Event.EVENT_URL_REQUESTED) 
     { 
      UrlRequestedEvent urlRequestedEvent = (UrlRequestedEvent) event; 
      url = urlRequestedEvent.getURL(); 
      (new Thread(this)).start(); 
     } 
     updater.sendDelayedMessage("Handle event " + event.getUID() + " for " 
       + event.getSourceURL()); 
     return null; 
    } 

    public int getAvailableHeight(BrowserContent browserContent) 
    { 
     return getHeight()/2; 
    } 

    public int getAvailableWidth(BrowserContent browserContent) 
    { 
     return (int) (getWidth() * .9); 
    } 

    public String getHTTPCookie(String url) 
    { 
     return null; 
    } 

    public int getHistoryPosition(BrowserContent browserContent) 
    { 
     return 0; 
    } 

protected HttpConnection getResourceConnection(String url, 
     HttpHeaders requestHeaders) 
{ 
    HttpConnection connection = null; 
    try 
    { 
     connection = (HttpConnection) Connector.open(url); 
     if (requestHeaders != null) 
     { 
      Hashtable headers = requestHeaders.toHashtable(); 
      if (headers != null) 
      { 
       Enumeration names = headers.keys(); 
       while (names.hasMoreElements()) 
       { 
        String name = (String) names.nextElement(); 
        String value = (String) headers.get(name); 
        connection.setRequestProperty(name, value); 
       } 
      } 
     } 
    } 
    catch (IOException ioe) 
    { 
     updater.sendDelayedMessage(ioe.getMessage()); 
    } 
    return connection; 
} 

    public HttpConnection getResource(final RequestedResource resource, 
      final BrowserContent referrer) 
    { 
     if (resource == null || resource.isCacheOnly()) 
     { 
      return null; 
     } 

     String url = resource.getUrl(); 

     if (url == null) 
     { 
      return null; 
     } 

     if (referrer == null) 
     { 
      return getResourceConnection(resource.getUrl(), resource 
        .getRequestHeaders()); 
     } 
     else 
     { 
      (new Thread() 
      { 
       public void run() 
       { 
        HttpConnection connection = getResourceConnection(resource 
          .getUrl(), resource.getRequestHeaders()); 
        resource.setHttpConnection(connection); 
        referrer.resourceReady(resource); 
       } 
      }).start(); 
     } 
     return null; 
    } 

    public void invokeRunnable(Runnable runnable) 
    { 
     (new Thread(runnable)).start(); 
    } 

} 

Answer 1

あなたの議論をdeviceSideにチェックしてください。あなたは "真"の代わりに "真実"とタイプします！