I am trying to use the sample code given in the Apress Advanced BlackBerry Development book. The problem is that when I launch the simulator with MDS, the web page gets displayed. But when I append ";deviceside=true" to the url, and then launch the simulator without MDS, the web page is not displayed. Only a white Screen is displayed.
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 in开发者_高级运维vokeRunnable(Runnable runnable)
{
(new Thread(runnable)).start();
}
}
check your argument to deviceSide; you type "ture" instead of "true"!
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