startport.java

来自「GPS Track connects to a GPS and records 」· Java 代码 · 共 39 行

// J2ME GPS Track
// Copyright (C) 2006 Dana Peters
// http://www.qcontinuum.org/gpstrack

package org.qcontinuum.gpstrack;

import javax.microedition.lcdui.*;

public class StartPort extends List implements CommandListener {

    private Displayable mParent;
    private Command mOkCommand, mCancelCommand;
    
    public StartPort(Displayable parent) {
        super("Serial Port", List.IMPLICIT);
        mParent = parent;
        String comPorts = System.getProperty("microedition.commports");
        StringTokenizer stringTokenizer = new StringTokenizer();
        String[] comPortArray = stringTokenizer.getArray(comPorts, ",");
        for (int n = 0; n < comPortArray.length; n++)
            append(comPortArray[n], null);
        addCommand(mOkCommand = new Command("OK", Command.OK, 0));
        addCommand(mCancelCommand = new Command("Cancel", Command.CANCEL, 0));
        setCommandListener(this);
    }

    public void commandAction(Command c, Displayable d)  {
        if (c == mOkCommand || c == SELECT_COMMAND) {
            Preferences preferences = GpsTrack.getPreferences();
            String port = getString(getSelectedIndex());
            preferences.setPort(port);
            GpsTrack.display(new StartBaud(mParent));
        } else if (c == mCancelCommand) {
            GpsTrack.display(mParent);
        }
    }

}