newticketauction.java

这是手机下载网络图像源码 共初学者参考

/*
 * @(#)NewTicketAuction.java	1.2 03/01/22
 *
 * Copyright (c) 1999-2003 Sun Microsystems, Inc. All rights reserved. 
 * PROPRIETARY/CONFIDENTIAL
 * Use is subject to license terms
 */

package example.auction;

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

public class NewTicketAuction extends MIDlet implements CommandListener {

    Display display;
    /** user interface alert component. */
    Alert splashScreenAlert; 
    // Wait for 2sec
    static final int DefaultTimeout = 2000;
                   
    Image   splashScreen;

    boolean imageLoaded;
    Band   band = new Band();
    Login login = new Login();
    TextBox     addBand;
    RmBand      rmBand = new RmBand();
    static final Command BACK_CMD = new Command("Back", Command.BACK, 1);
    static final Command SAVE_CMD = new Command("Save", Command.SCREEN, 2);
    static final Command NEXT_CMD = new Command("Next", Command.SCREEN, 2);
    static final Command SUBMIT_CMD = new Command("Submit", Command.ITEM, 2);
    static final Command AUCTION_CMD = new Command("Auction", Command.ITEM, 2);
    static final Command CANCEL_CMD = new Command("Cancel", 
                                                      Command.CANCEL, 1);
    static final Command STOP_CMD = new Command("Stop", 
                                                      Command.STOP, 1);

    List        mainMenu, cateMenu, ticketList; // bandList, ticketList;
    Ticker      ticker;
    Alert       notImpl, savedMsg, alertMsg;
    Form        band_ticket_Form, ticketForm, enterForm, bidForm, submitMsg;
    TextField   enterText;
    ChoiceGroup bandCg, auctionCg;
    StringItem auctionName;
    UpdateAlert updateAlert = new UpdateAlert();

    Gauge         submitGauge;
    Timer TimerService;
    SetMenuForm setMenu2 = new SetMenuForm();

    // Band Name and Index number of the selected band in 
    // Band Screen band_ticket_Form
    String _bandName;
    int    _bandIndex = 0;

    static final Command EXIT_CMD = new Command("Exit", 
                                                      Command.EXIT, 1);
    static final Command ABOUT_CMD = new Command("About Tickets", 
                                                      Command.HELP, 1);
    // commands for Band Screen bandForm

    static final Command SHOW_CMD = new Command("Show Auctions", 
                                                      Command.SCREEN, 1);
    static final Command ADD_CMD = new Command("Add Bands", 
                                                      Command.SCREEN, 1);
    static final Command RMV_CMD = new Command("Remove Bands",
                                                      Command.SCREEN, 2);
    static final Command SETTING_CMD = new Command("Settings", 
                                                      Command.SCREEN, 3);

  
    // commands for  Auction Screen ticketList

    static final Command SHOW_INFO_CMD = new Command("Show More Info",
                                                      Command.ITEM, 1);
    static final Command MAKE_BID_CMD = new Command("Make a Bid",
                                                      Command.ITEM, 2);
    static final Command SET_ALERT_CMD = new Command("Set an Alert",
                                                      Command.ITEM, 3);

    // command for Bid screen ticketForm
    static final Command BAND_CMD = new Command("Bands", 
                                      Command.SCREEN, 1);
                                      
    private boolean firstTime;                                      

    public NewTicketAuction() {
        display = Display.getDisplay(this);
        notImpl = new Alert("Sorry!!!", "Not Implemented", null, null);

        savedMsg = new Alert(null, "Your new settings have been saved!",
                             null, null);

        alertMsg = new Alert(null, "Your alerts have been saved!",
                             null, null);


        submitGauge = new Gauge("", false, 100, 0);
        submitMsg = new Form("Submitting bid...");
        submitMsg.append(submitGauge);
        submitMsg.addCommand(STOP_CMD);
        submitMsg.setCommandListener(this);


        ticker = new Ticker("");
        ticker.setString(band.toTickerString(null));

        band_ticket_Form = new Form("Welcome To Tickets");

        band_ticket_Form.addCommand(SHOW_INFO_CMD);
        band_ticket_Form.addCommand(MAKE_BID_CMD);
        band_ticket_Form.addCommand(SET_ALERT_CMD);

        band_ticket_Form.addCommand(ADD_CMD);
        band_ticket_Form.addCommand(RMV_CMD);
        band_ticket_Form.addCommand(SETTING_CMD);
        band_ticket_Form.addCommand(ABOUT_CMD);
        band_ticket_Form.addCommand(EXIT_CMD);
        band_ticket_Form.setCommandListener(this);
        band_ticket_Form.setTicker(ticker);

        // bandCg = new ChoiceGroup("Choose a Band", Choice.EXCLUSIVE);
        bandCg = new ChoiceGroup("Choose a Band", Choice.POPUP);
        band_ticket_Form.append(bandCg);
        String[] list = band.getList();
        for (int i = 0; i < list.length; i++) {
            bandCg.append(list[i], null);
        }

        String bandName = 
            band.getName(bandCg.getSelectedIndex());
        auctionCg = new ChoiceGroup(bandName + " Auctions:", 
				    Choice.EXCLUSIVE);
        auctionCg.setLayout(Item.LAYOUT_EXPAND);
        band_ticket_Form.append(auctionCg);
        reconstructList(auctionCg, band.getTicketList(bandName));
        band_ticket_Form.setItemStateListener(
            new ItemStateListener() {
                public void itemStateChanged(Item item) { 
                    if (item instanceof ChoiceGroup) {
                        ChoiceGroup obj = (ChoiceGroup) item;
                        if (obj == bandCg) {
                            int idx = obj.getSelectedIndex();
                            String bandName = band.getName(idx);
                            auctionCg.setLabel(bandName + " Auctions:");
                            reconstructList(auctionCg, 
                                band.getTicketList(bandName));
                        }
                    }
                }
            }
        );
        try {
            splashScreen = 
              Image.createImage("/example/auction/images/splashScreen.png");
            imageLoaded = true;
        } catch (java.io.IOException ex) {
        }

        splashScreenAlert = new Alert("Welcome to Ticket Auction", "", 
                             splashScreen, AlertType.INFO);
        splashScreenAlert.setTimeout(DefaultTimeout);

        

        ticketForm = new Form("dummy");
        ticketForm.append("dummy");
        ticketForm.addCommand(BACK_CMD);
        ticketForm.addCommand(BAND_CMD);
        ticketForm.addCommand(MAKE_BID_CMD);
        ticketForm.addCommand(SET_ALERT_CMD);
        ticketForm.setCommandListener(this);

        enterText = new TextField("Tell me when bid reaches:", "", 
                                  10, TextField.DECIMAL);

        enterForm = new Form("Set an Alert");
        enterForm.append(enterText);
        enterForm.addCommand(BACK_CMD);
        enterForm.addCommand(SAVE_CMD);
        enterForm.setCommandListener(this);

        addBand = new TextBox("Add Bands, Bands:", "", 100, TextField.ANY);
        addBand.addCommand(BACK_CMD);
        addBand.addCommand(SAVE_CMD);
        addBand.setCommandListener(this);
        firstTime = true;
    }

    public void startApp() {
        if (firstTime) {
            display.setCurrent(splashScreenAlert, band_ticket_Form);
            firstTime = false;
        }        
    }
    public void destroyApp(boolean unconditional) {
    }

    public void pauseApp() {
    }



    public void commandAction(Command c, Displayable s) {
          if (s instanceof Form) {
            Form obj = (Form) s;
            if (obj == band_ticket_Form) {
                int idx = auctionCg.getSelectedIndex();
                _bandIndex = idx;

                int bandIdx = bandCg.getSelectedIndex();
                String bandName = "";
                if (bandIdx >= 0) {
                    bandName =  band.getName(bandIdx);
                }
                 _bandName = bandName;

                if (c == SHOW_INFO_CMD) {
                    deleteFormItem(ticketForm);
                    ticketForm.setTitle(band.getTicketDataTitle(bandName, 
								idx));
                    band.getTicketData(ticketForm, bandName, idx);
                    display.setCurrent(ticketForm);
                } else if (c == MAKE_BID_CMD) {
                    login.setBandAttributes(bandName, _bandIndex);
                    deleteFormItem(login);
                    login.append(login.id);
                    login.id.setLabel("Enter Your ID:");
                    login.append(login.pd);
                    login.pd.setLabel("Enter PIN:");
                    login.append(login.curBid);
                    login.append(login.incBid);
                    login.append(login.minBid);
                    login.append(login.bidText);
                    login.id.setString(null);
                    login.pd.setString(null);
                    login.bidText.setString(null);
                    band.getTicketBidTitle(login, 
                                               _bandName, _bandIndex);
                    display.setCurrent(login);
                } else if (c == SET_ALERT_CMD) {
                    display.setCurrent(enterForm);
                } else if (c == ADD_CMD) {
                    display.setCurrent(addBand);
                } else if (c == RMV_CMD) {
                    display.setCurrent(rmBand);
                } else if (c == SETTING_CMD) {
                    display.setCurrent(setMenu2);
                } else if (c == ABOUT_CMD) {
                    example.About.showAbout(display);
                } else if (c == EXIT_CMD) {
                    notifyDestroyed();
                }
            } else if (obj == ticketForm) {
                if (c == BACK_CMD) {
                  display.setCurrent(band_ticket_Form);
                } else if (c == BAND_CMD) {
                    display.setCurrent(band_ticket_Form);
                } else if (c == MAKE_BID_CMD) {
                    login.setBandAttributes(band.getName(
					    bandCg.getSelectedIndex()),
					    _bandIndex);
                    deleteFormItem(login);
                    login.append(login.id);
                    login.id.setLabel("Enter Auction ID:");
                    login.append(login.pd);
                    login.pd.setLabel("Enter PIN:");
                    login.append(login.curBid);
                    login.append(login.incBid);
                    login.append(login.minBid);
                    login.append(login.bidText);
                    login.id.setString(null);
                    login.pd.setString(null);
                    login.bidText.setString(null);
                    band.getTicketBidTitle(login, 
                                               _bandName, _bandIndex);
                    display.setCurrent(login);
                } else if (c == SET_ALERT_CMD) {
                    deleteFormItem(enterForm);
             
                    int selectedBand = bandCg.getSelectedIndex();
                    String ticketID = 
                        band.getTicketID(band.getName(selectedBand),
					 login._bandIndex);
                    enterForm.append(new StringItem("Auction:", 
				     band.getName(selectedBand)+ " " +
						    ticketID));
                    String curBid = 
			band.getCurrentBid(band.getName(selectedBand),
					   login._bandIndex);
                    enterForm.append(new StringItem("Current Bid:",  
						    "$"+ curBid));
                    enterForm.append(enterText);
                    display.setCurrent(enterForm);
                }

            } else if (obj == enterForm) {
                 if (c == BACK_CMD) {
                    enterText.setString(null);
                    display.setCurrent(band_ticket_Form);
                } else if (c == SAVE_CMD) {
                    updateAlert.set(band.getName(bandCg.getSelectedIndex()), 
                                    enterText.getString());
                    display.setCurrent(alertMsg, band_ticket_Form);
                }
            } else if (obj == submitMsg) {
                if (c == STOP_CMD) {
                    TimerService.cancel();
                    display.setCurrent(login.confirm);
                }
            }
        } else if (s instanceof TextBox) {
            TextBox obj = (TextBox) s;
            if (obj == addBand) {
                if (c == BACK_CMD) {
                  // display.setCurrent(setMenu);
                  display.setCurrent(band_ticket_Form);
                } else if (c == SAVE_CMD) {
                    updateBandList(addBand.getString());
                    display.setCurrent(savedMsg, band_ticket_Form);
                }
            }
        }
    }

    class Login extends Form implements CommandListener {
        TextField id = new TextField("", "", 10, TextField.ANY);
        TextField pd = new TextField("", "", 10, 
                                     (TextField.NUMERIC|TextField.PASSWORD));
        TextField bidText = new TextField("Enter Bid:", "", 
					  10, TextField.DECIMAL);
        StringItem submitButton = new StringItem("", "Submit", Item.BUTTON);
        StringItem auctionHyperlink = new StringItem("Auction:", "", 
						     Item.HYPERLINK);

        StringItem curBid = new StringItem("Current Bid:", "");
        StringItem incBid = new StringItem("Increment:", "");
        StringItem minBid = new StringItem("Minimum Bid:", "");