btdemo.java

我自己写的蓝牙例子

import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;

public class BTDemo extends MIDlet implements CommandListener {

    public BTDemoCanvas btCanvas;

    public static BTDemo inc;
    
    public Command ok= new Command("进入", Command.OK, 1);

    private Command back;

    public BTDemo() {
        super();
        
        inc = this;
        
        btCanvas = new BTDemoCanvas(true);

        btCanvas.setCommandListener(this);

    }

    protected void startApp() throws MIDletStateChangeException {
        Display.getDisplay(this).setCurrent(btCanvas);
    }

    protected void pauseApp() {

    }

    protected void destroyApp(boolean arg0) throws MIDletStateChangeException {

    }
    
    public void commandAction(Command c, Displayable d) {
        if (c.getLabel() == "进入" || c.getLabel() == "菜单"
                || c.getLabel() == "确定") {
            btCanvas.doOkApp();
        } else if (c.getLabel() == "返回") {
            btCanvas.doOkApp();
        }
    }
    
    protected void removeAllcommands() {
        if(ok!=null)
            btCanvas.removeCommand(ok);
        if(back!=null)
            btCanvas.removeCommand(back);
    }
    
  public  void setTo(byte okFlag, byte backFlag) {

        if (okFlag != 0) {
            switch (okFlag) {
            case 1:
                ok = new Command("进入", Command.OK, 1);
                break;
            case 2:
                ok = new Command("菜单", Command.OK, 1);
                break;
            case 3:
                ok = new Command("确定", Command.OK, 1);
                break;
            }
            btCanvas.addCommand(ok);
        }
        if (backFlag != 0) {
            back = new Command("返回", Command.BACK, 0);
            btCanvas.addCommand(back);
        }
    }


}