twittering.java

一个J2ME Twitter 客户端的NetBeans项目

/*
 ******************************************************************************
    Main Twittering midlet GUI and handling
    Copyright (C) 2007 Timothy Lim Sheng Hwee

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License along
    with this program; if not, write to the Free Software Foundation, Inc.,
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

 Author: Timothy Lim Sheng Hwee
 Email : [e-mail]
******************************************************************************
 */

package Twittering;

import java.util.Vector;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;

/**
 *
 * @author Administrator
 */
public class Twittering extends MIDlet implements CommandListener, ItemCommandListener, ItemStateListener
{
    
    /** Creates a new instance of Twittering */
    public Twittering()
    {
            initialize();
    }
    
    private Form formMain;//GEN-BEGIN:MVDFields
    private Form formSettings;
    private Command goToSettings;
    private Command goToTweets;
    private Command goToDirectMsgs;
    private Command exitApp;
    private Command saveSettings;
    private Command exitSettings;
    private TextField settingsUser;
    private TextField settingsPass;
    private TextField whatAreYouDoing;
    private StringItem sendTweetBtn;
    private Spacer spacer1;
    private TextField dmMsg;
    private StringItem sendDirectMessageBtn;
    private TextField dmUserText;
    private StringItem lblDM;
    private Command goToMainPage;
    private Command sendTweet;
    private Command sendDirectMsg;
    private Command popupSelectUser;
    private Command clearTweet;
    private Command clearDirectMsgText;
    private Form formSelectUser;
    private Command refreshUserList;
    private Command backToMain;
    private Command selectFriend;
    private Form formInitError;
    private Command exit;
    private Command clearSettings;
    private StringItem intiError;
    private Command sendTweetItem;
    private Command sendDirectMessageItem;
    private Command saveWhatAreYouDoing;
    private Command saveUsername;
    private Command saveDirectMessage;
    private Command clearUserName;
    private Command editWAYD;
    private Command cmdDone;
    private Command cmdBacktoMain;
    private Command editDM;
    private StringItem lblWAYD;
    private Form form1;
    private StringItem strLicense;
    private Spacer spacer2;
    private Command cmdAbout;//GEN-END:MVDFields

    public final int MODE_WAYD = 0;
    public final int MODE_DM = 1;
            
    private int mode;
    private Alert popup;
    private Data data;
    private DB_RS db;
    private ClientCommandHandler currCommand;
    
    public final String DB_STRING = "Twittering";
    public final String DB_USER = "U";
    public final String DB_PASS = "P";
    public final String DB_FRIENDS = "F";
    public final String DB_DM_USER = "DM_U";
    public final String DB_DM_MSG = "DM_MSG";
    public final String DB_TWEET_MSG = "TWT_MSG";
    
    public final int MAX_MSG = 160;
    public void itemStateChanged(Item item)
    {
        if (item == get_dmMsg())
        {
            updateCharsAvailable(true);
        }
        else if (item == get_whatAreYouDoing())
        {
            updateCharsAvailable(false);
        }
    }
//GEN-LINE:MVDMethods

    private void updateCharsAvailable(boolean directMsg)
    {
        if (directMsg)
        {
            get_dmMsg().setLabel("Characters available: " + (MAX_MSG - get_dmMsg().getString().length()));
        }
        else
        {
            get_whatAreYouDoing().setLabel("Characters available: " + (MAX_MSG - get_whatAreYouDoing().getString().length()));        
        }
    }
    /** Called by the system to indicate that a command has been invoked on a particular item.//GEN-BEGIN:MVDICABegin
     * @param command the Command that ws invoked
     * @param item the Item on which the command was invoked
     */
    public void commandAction(Command command, Item item)
    {//GEN-END:MVDICABegin
    // Insert global pre-action code here
        if (item == sendDirectMessageBtn)//GEN-BEGIN:MVDICABody
        {
            if (command == sendDirectMsg)
            {//GEN-END:MVDICABody
                // Insert pre-action code here
                sendDirectMessage();
                
                // Do nothing//GEN-LINE:MVDICAAction37
                // Insert post-action code here
            }//GEN-BEGIN:MVDICACase37
        }
        else if (item == sendTweetBtn)
        {
            if (command == sendTweet)
            {//GEN-END:MVDICACase37
                // Insert pre-action code here
                sendTweet();
                // Do nothing//GEN-LINE:MVDICAAction35
                // Insert post-action code here
            }//GEN-BEGIN:MVDICACase35
        }
        else if (item == dmUserText)
        {
            if (command == popupSelectUser)
            {//GEN-END:MVDICACase35
                // Insert pre-action code here
                getDisplay().setCurrent(get_formSelectUser());
                
                // Do nothing//GEN-LINE:MVDICAAction41
                // Insert post-action code here
            }//GEN-BEGIN:MVDICACase41
            else if (command == saveUsername)
            {//GEN-END:MVDICACase41
                try
                {
                    db.open();
                    getData().setDirectMessageUser(get_dmUserText().getString());
                    if(getData().getDirectMessageUser() != null) db.write(DB_DM_USER, getData().getDirectMessageUser(), false);
                    db.close();
                }
                catch(Exception e)
                {
                    getDisplay().setCurrent(get_PopupPage("ERROR", "DB error: " + db.getError().getMessage(), null, AlertType.ERROR),getDisplay().getCurrent());
                }
                // Insert pre-action code here
                // Do nothing//GEN-LINE:MVDICAAction81
                // Insert post-action code here
            }//GEN-BEGIN:MVDICACase81
            else if (command == clearUserName)
            {//GEN-END:MVDICACase81
                get_dmUserText().setString("");
                
                try
                {
                    db.open();
                    db.delete(DB_DM_USER);
                    db.close();
                }
                catch(Exception e)
                {
                    getDisplay().setCurrent(get_PopupPage("ERROR", "DB error: " + db.getError().getMessage(), null, AlertType.ERROR),getDisplay().getCurrent());
                }
                // Insert pre-action code here
                // Do nothing//GEN-LINE:MVDICAAction85
                // Insert post-action code here
            }//GEN-BEGIN:MVDICACase85
        }
        else if (item == whatAreYouDoing)
        {
            if (command == clearTweet)
            {//GEN-END:MVDICACase85
                
                get_whatAreYouDoing().setString("");
                updateCharsAvailable(false);
                try
                {
                    db.open();
                    db.delete(DB_TWEET_MSG);
                    db.close();
                }
                catch(Exception e)
                {
                    getDisplay().setCurrent(get_PopupPage("ERROR", "DB error: " + db.getError().getMessage(), null, AlertType.ERROR),getDisplay().getCurrent());
                }
                // Insert pre-action code here
                // Do nothing//GEN-LINE:MVDICAAction47
                // Insert post-action code here
            }//GEN-BEGIN:MVDICACase47
            else if (command == sendTweetItem)
            {//GEN-END:MVDICACase47
                // Insert pre-action code here
                sendTweet();
                // Do nothing//GEN-LINE:MVDICAAction73
                // Insert post-action code here
            }//GEN-BEGIN:MVDICACase73
            else if (command == saveWhatAreYouDoing)
            {//GEN-END:MVDICACase73
                try
                {
                    db.open();
                    getData().setTweetMsg(get_whatAreYouDoing().getString());
                    if(getData().getTweetMsg() != null) db.write(DB_TWEET_MSG, getData().getTweetMsg(), false);
                    db.close();
                }
                catch(Exception e)
                {
                    getDisplay().setCurrent(get_PopupPage("ERROR", "DB error: " + db.getError().getMessage(), null, AlertType.ERROR),getDisplay().getCurrent());
                }
                // Insert pre-action code here
                // Do nothing//GEN-LINE:MVDICAAction79
                // Insert post-action code here
            }//GEN-BEGIN:MVDICACase79
        }
        else if (item == dmMsg)
        {
            if (command == clearDirectMsgText)
            {//GEN-END:MVDICACase79
                // Insert pre-action code here
                get_dmMsg().setString("");
                updateCharsAvailable(true);
                try
                {
                    db.open();
                    db.delete(DB_DM_MSG);
                    db.close();
                }
                catch(Exception e)
                {
                    getDisplay().setCurrent(get_PopupPage("ERROR", "DB error: " + db.getError().getMessage(), null, AlertType.ERROR),getDisplay().getCurrent());
                }

                // Do nothing//GEN-LINE:MVDICAAction49
                // Insert post-action code here
            }//GEN-BEGIN:MVDICACase49
            else if (command == sendDirectMessageItem)
            {//GEN-END:MVDICACase49
                // Insert pre-action code here
                sendDirectMessage();
                // Do nothing//GEN-LINE:MVDICAAction75
                // Insert post-action code here
            }//GEN-BEGIN:MVDICACase75
            else if (command == saveDirectMessage)
            {//GEN-END:MVDICACase75
                try
                {
                    db.open();
                    getData().setDirectMessageMsg(get_dmMsg().getString());
                    if(getData().getDirectMessageMsg() != null) db.write(DB_DM_MSG, getData().getDirectMessageMsg(), false);
                    db.close();
                }
                catch(Exception e)
                {
                    getDisplay().setCurrent(get_PopupPage("ERROR", "DB error: " + db.getError().getMessage(), null, AlertType.ERROR),getDisplay().getCurrent());
                }
                // Insert pre-action code here
                // Do nothing//GEN-LINE:MVDICAAction83
                // Insert post-action code here
            }//GEN-BEGIN:MVDICACase83
        }
        else if (item == strLicense)
        {
            if (command == cmdAbout)
            {//GEN-END:MVDICACase83
                // Insert pre-action code here
                getDisplay().setCurrent(get_PopupPage("", "" +
"Twittering\n" +
                        "http://sourceforge.net/projects/twittering\n" +
"Copyright (C) 2007, Timothy Lim Sheng Hwee. [e-mail]\n" +
"\n" +
"This program is free software; you can redistribute it and/or modify " +
"it under the terms of the GNU General Public License as published by " +
"the Free Software Foundation; either version 2 of the License, or " +
"(at your option) any later version.\n" +
"\n" +
"This program is distributed in the hope that it will be useful, " +
"but WITHOUT ANY WARRANTY; without even the implied warranty of " +
"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the " +
"GNU General Public License for more details.",null, AlertType.INFO),getDisplay().getCurrent());
                // Do nothing//GEN-LINE:MVDICAAction111
                // Insert post-action code here
            }//GEN-BEGIN:MVDICACase111
        }//GEN-END:MVDICACase111
        else if (command == selectFriend)
        {
            // Insert pre-action code here
            try
            {
                StringItem friend = (StringItem) item;
                get_dmUserText().setString(friend.getText());
                getDisplay().setCurrent(get_formMain());
            }
            catch (Exception e)
            {
            }