netclientmidlet.java

j2me实例代码

package ConnectionImpl;

import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;
import java.lang.*;
import java.io.*;
import java.util.*;
import javax.microedition.lcdui.*;

public class NetClientMIDlet extends MIDlet implements CommandListener,Runnable {
	private Display display;
	private TextBox mainScr;
	private Command cmdOK;
	private Command cmdExit;
	private Form progress;
	public NetClientMIDlet() {
		super();
		display=Display.getDisplay(this);
		mainScr=new TextBox("NetClient","PressOKtoconnet to networkservice",1024,TextField.UNEDITABLE);
		cmdOK=new Command("OK",Command.SCREEN,1);
		cmdExit=new Command("Exit",Command.EXIT,1);
		mainScr.addCommand(cmdOK);
		mainScr.addCommand(cmdExit);
		mainScr.setCommandListener(this);
		display.setCurrent(mainScr);
		
		progress=new Form("Progress");
		Gauge g=new Gauge("Waiting...",false,Gauge.INDEFINITE,Gauge.CONTINUOUS_RUNNING);
		progress.append(g);
		progress.addCommand(cmdExit);
		progress.setCommandListener(this);
	}

	protected void startApp() throws MIDletStateChangeException {
		// TODO Auto-generated method stub

	}

	protected void pauseApp() {
		// TODO Auto-generated method stub

	}

	protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
		// TODO Auto-generated method stub

	}

	public void commandAction(Command c, Displayable d) {
		if(c==cmdOK){
			if(d==mainScr){
				display.setCurrent(progress);
				new Thread(this).start();
			}
		}else if(c==cmdExit){
			try{
				destroyApp(false);
				notifyDestroyed();
			}catch(Exception e){}
		}
		
	}

	public void run() {
		ConnectionManager h=new ConnectionManager();
		h.setMsg("Esse quam videri");
		h.setUser("book");
		h.setPassword("bkpasswd");
		
		byte[] data=h.Process();
		
		if(data==null||data.length==0){
			Alert alert=new Alert("Alert","No infomation available",null,AlertType.ERROR);
			display.setCurrent(alert,mainScr);
			
		}else{
			TextBox dataScr=new TextBox("Data Screen","",1,TextField.UNEDITABLE);
			dataScr.addCommand(cmdOK);
			dataScr.addCommand(cmdExit);
			dataScr.setCommandListener(this);
			
			dataScr.setMaxSize(data.length);
			dataScr.setString(new String(data));
			display.setCurrent(dataScr);
		}
		
	}

}