waitcanvas.java

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package com.j2medev.chapter3;

import javax.microedition.lcdui.*;

public class WaitCanvas extends Canvas implements CommandListener,Runnable{
    
    private int percent = 0;
    private int height = 15;
    private int dert = 0;
    private int x = 0;
    private boolean stop = false;
    private Command cancel =  new Command("Cancel",Command.CANCEL,1);
    
    public WaitCanvas() {
        dert = getWidth()/10;
        x = (getWidth()-10*dert)/2;
        addCommand(cancel);
        setCommandListener(this);
        new Thread(this).start();
    }
    
    public void paint(Graphics g){
        int color = g.getColor();
        g.setColor(0xFFFFFF);
        g.fillRect(0,0,getWidth(),getHeight());
        g.setColor(255,0,0);
        g.drawRoundRect(x,getHeight()/2,10*dert,height,2,2);
        g.setColor(0x6699cc);
        g.fillRoundRect(x+1,getHeight()/2+1,dert*percent-1,height-1,2,2);
    }
    
    public void run(){
        while(!stop){
            percent++;
            repaint();
            try{
                Thread.sleep(200);
            }catch(InterruptedException ex){
                
            }
            if(percent == 10){
                stop = true;
                Alert alert = new Alert("Finished","The article has been posted!",null,AlertType.INFO);
                alert.setTimeout(2000);
                StackMIDlet.moveNext(alert,new MainMenu());
            }
        }
    }
    
    public void commandAction(Command cmd,Displayable displayable){
        if(cmd == cancel){
            stop = true;
            StackMIDlet.goBack();
        }else if(cmd.getCommandType() == Command.EXIT){
            StackMIDlet.handleCommandAction(cmd,displayable);
        }
    }
}