welcome.java

里面是关于手机通讯部的开发 主要实现了帐号的登陆

package pass;

import javax.microedition.lcdui.*;
public class welcome extends Canvas implements Runnable  {
  Image welcome;
  Thread thread=null;
  int endw=1;
  int twid,thei;
  mypass tmain;
  Display display;



  public welcome(mypass main) {
    try {
      tmain=main;
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }

  private void jbInit() throws Exception {
   display=Display.getDisplay(tmain);
   welcome=Image.createImage("/welcome.png");
   thread=new Thread(this);
   thread.start();
  }

  public void run() {


    while(true)
    {
    try {
      thread.sleep(50);
    }
    catch (InterruptedException ex) {
    }
    if(endw<=twid-3)
    {
      endw++;
      repaint();
    }
    else
    {
      passmain();
      break;
   }
    }
  }

  protected void paint(Graphics g) {
    twid=g.getClipWidth();
    thei=g.getClipHeight();
    g.setColor(255,255,255);
    g.fillRect(0,0,twid,thei);
    g.drawImage(welcome,0,0,g.LEFT | g.TOP);
    g.setColor(0,0,0);
    g.drawString("Loading..",2,thei-30,g.LEFT | g.TOP);
    g.setColor(27,22,225);
    g.fillRect(1,thei-15,endw-1,8);
  }


private void passmain()
  {
  int i;
  setpass displayable = new setpass(tmain);
  login displayable1 = new login(tmain);
  RecordSet first = new RecordSet();
  first.open("userpass",true);
  i=first.Recordcount();
  first.close();
  if(i==0)
    display.setCurrent(displayable);
  else
     display.setCurrent(displayable1);
  }
}