Blackberry JAVA DEVELOPMENT ENVIRONMENT - - CRYPTOGRAPHIC SMART CARD DRIVER - DEVELOPMENT GUIDE Průvodce řešením problémů stáhnout pdf (Strana 218)

218

BlackBerry Java Development Environment Development Guide

Code sample: Listening for data from a web server

Example: HTTPPushDemo.java

/**

* The client side of a simple HTTP Push system.

* This application will listen for image data on the specified port and

* render the data when it arrives.

package com.rim.samples.docs.httppush;

import java.io.*;

import javax.microedition.io.*;

import net.rim.device.api.ui.*;

import net.rim.device.api.ui.component.*;

import net.rim.device.api.ui.container.*;

import net.rim.device.api.i18n.*;

import net.rim.device.api.system.*;

import com.rim.samples.docs.resource.*;

import net.rim.device.api.util.*;

import net.rim.device.api.io.http.*;

public class HTTPPushDemo extends UiApplication implements HTTPPushDemoResResource

{

// Constants.

private static final String URL = “http://:100”; //PORT 100

private static final int CHUNK_SIZE = 256;

// Fields.

private ListeningThread _listeningThread;

private MainScreen _mainScreen;

private RichTextField _infoField;

private RichTextField _imageField;

//statics ------------------------------------------------------------------

private static ResourceBundle _resources =

ResourceBundle.getBundle(HTTPPushDemoResResource.BUNDLE_ID,

HTTPPushDemoResResource.BUNDLE_NAME);

public static void main(String[] args) {

HTTPPushDemo theApp = new HTTPPushDemo();

theApp.enterEventDispatcher();

}

/**

* Create a separate listening thread so that you do not

* block the application’s main event thread.

private class ListeningThread extends Thread {

Close the stream connection notifier. >Invoke close() on the stream connection notifier.

_notify.close();

Task Steps

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