ttt.java

来自「Writing an interactive Java program with」· Java 代码 · 共 59 行

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

public class TTT extends MIDlet implements CommandListener {
  private canvasTTT canvasttt;
  private Display display;
  
  public TTT()
  {
		display = Display.getDisplay(this);
  }
  
  // List
  public void startApp() {
  	
  		List l =new List("Size", Choice.IMPLICIT);	
		l.append("3x3 map", null);
		l.append("4x4 map", null);
		l.append("5x5 map", null);
		l.setCommandListener(this);
		display.setCurrent(l);

  }
  
  
  public void pauseApp() {}
  
  public void destroyApp(boolean unconditional) {}
  
  public void commandAction(Command c, Displayable s) 
  {
    if (c.getCommandType() == Command.EXIT)
    {
      destroyApp(true);
      notifyDestroyed();
    }
    
    if(c == List.SELECT_COMMAND)
	{
	      List tmp = (List)s;

	      int size = tmp.getSelectedIndex() + 3;
	      System.out.println("Item => "+size);

	      if (canvasttt == null) 
	      {
      		canvasttt = new canvasTTT(Display.getDisplay(this));
      		canvasttt.size = size;
      		Command exitCommand = new Command("Exit", Command.EXIT, 0);
      		canvasttt.addCommand(exitCommand);
      		canvasttt.setCommandListener(this);
    	  }
    
    		// Start up the canvas
    	  canvasttt.start();
	}
  }
}