commandtype.java

用Eclipse开发J2me书籍的程序源码。

import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Form;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;

public class CommandType extends MIDlet {

    Display display;
    Form frmMain = new Form("命令按钮类型演示");
    
    //命令按钮
    Command cmdScreen1 = new Command("SCREEN1", Command.SCREEN, 1);
    Command cmdScreen2 = new Command("SCREEN2", Command.SCREEN, 1);
    
    Command cmdItem1 = new Command("ITEM1", Command.ITEM, 1);
    Command cmdItem2 = new Command("ITEM2", Command.ITEM, 1);
    
    Command cmdExit2 = new Command("EXIT2", Command.EXIT, 1);
    Command cmdExit1 = new Command("EXIT1", Command.EXIT, 1);
    
    Command cmdBack1 = new Command("BACK1", Command.BACK, 1);
    Command cmdBack2 = new Command("BACK2", Command.BACK, 1);
    
    Command cmdCancel1 = new Command("CANCEL1", Command.CANCEL, 1);
    Command cmdCancel2 = new Command("CANCEL2", Command.CANCEL, 1);
    
    Command cmdHelp1 = new Command("HELP1", Command.HELP, 1);
    Command cmdHelp2 = new Command("HELP2", Command.HELP, 1);
    
    Command cmdOk1 = new Command("OK1", Command.OK, 1);
    Command cmdOk2 = new Command("OK2", Command.OK, 1);
    
    Command cmdStop1 = new Command("STOP1", Command.STOP, 1);
    Command cmdStop2 = new Command("STOP2", Command.STOP, 1);
    
    
    public CommandType() {
        super();
        // TODO Auto-generated constructor stub
    }


    protected void startApp() throws MIDletStateChangeException {
        display = Display.getDisplay(this);
        frmMain.addCommand(cmdBack1);
        frmMain.addCommand(cmdCancel1);
        frmMain.addCommand(cmdHelp1);
        frmMain.addCommand(cmdOk1);
        frmMain.addCommand(cmdStop1);
        frmMain.addCommand(cmdScreen1);
        frmMain.addCommand(cmdItem1);
        
        frmMain.addCommand(cmdBack2);
        frmMain.addCommand(cmdCancel2);
        frmMain.addCommand(cmdHelp2);
        frmMain.addCommand(cmdOk2);
        frmMain.addCommand(cmdStop2);
        
        
        frmMain.addCommand(cmdExit1);
        frmMain.addCommand(cmdExit2);
        

        frmMain.addCommand(cmdScreen2);
        frmMain.addCommand(cmdItem2);
        
        display.setCurrent(frmMain);
    }

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

    }

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

    }
}