mainmidlet.java

48小时的闹钟,专为倒班人士定作.稍加改动即可对更多倒班类型作提醒

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package Main;

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import javax.microedition.rms.*;
import java.io.*;
import java.util.Calendar;
import java.util.Date;
import java.util.TimerTask;
import java.util.Timer;
import javax.microedition.media.*;
/**
 * @author HolyCat
 */
public class MainMIDlet extends MIDlet implements CommandListener {

    private boolean midletPaused = false;

    //<editor-fold defaultstate="collapsed" desc=" Generated Fields ">//GEN-BEGIN:|fields|0|
    private Command exitCommand;
    private Command ChangeCommand;
    private Form form;
    private DateField dateField1;
    private StringItem stringItem;
    private DateField dateField;
    //</editor-fold>//GEN-END:|fields|0|

    //
    public class MyTimerTask extends TimerTask
    {
        public void run()
        {
            Ringing(System.currentTimeMillis());
        }        
    }
    //
    long NextDate;
    Timer timer=new Timer();
    MyTimerTask MyTask=new MyTimerTask();
    Player player;
    //
    public static long bytes2long(byte[] b)
    {

        int mask=0xff;
        long temp=0;
        long res=0;
        for(int i=0;i <8;i++){
            res <<=8;
            temp=b[i]&mask;
            res|=temp;
        }
        return res;
    }

    public static byte[] long2bytes(long num)
    {
        byte[] b=new byte[8];
        for(int i=0;i <8;i++){
            b[i]=(byte)(num>>>(56-i*8));
        }
        return b;
    }
    
    public void Ringing(long NowDate){
        Date date=new Date();
        try{
            if (NowDate>NextDate){
                date.setTime(NextDate);
                dateField1.setDate(date);
                player.start();
            }
            date.setTime(NowDate);
            dateField.setDate(date);
        }
        catch(Exception e){
            System.out.println("@@@@@@@@@@@@@@@@@@@@@"+e);
        }
    }
    /**
     * The MainMIDlet constructor.
     */
    public MainMIDlet() {
    }

    //<editor-fold defaultstate="collapsed" desc=" Generated Methods ">//GEN-BEGIN:|methods|0|
    //</editor-fold>//GEN-END:|methods|0|

    //<editor-fold defaultstate="collapsed" desc=" Generated Method: initialize ">//GEN-BEGIN:|0-initialize|0|0-preInitialize
    /**
     * Initilizes the application.
     * It is called only once when the MIDlet is started. The method is called before the <code>startMIDlet</code> method.
     */
    private void initialize() {//GEN-END:|0-initialize|0|0-preInitialize
        // write pre-initialize user code here
//GEN-LINE:|0-initialize|1|0-postInitialize
        // write post-initialize user code here
    }//GEN-BEGIN:|0-initialize|2|
    //</editor-fold>//GEN-END:|0-initialize|2|

    //<editor-fold defaultstate="collapsed" desc=" Generated Method: startMIDlet ">//GEN-BEGIN:|3-startMIDlet|0|3-preAction
    /**
     * Performs an action assigned to the Mobile Device - MIDlet Started point.
     */
    public void startMIDlet() {//GEN-END:|3-startMIDlet|0|3-preAction
        // write pre-action user code here
        switchDisplayable(null, getForm());//GEN-LINE:|3-startMIDlet|1|3-postAction
        // write post-action user code here

        //初始化上回闹铃记录
        RecordStore RSMain = null;
        Date date;
        InputStream is;
        //默认初始时间2009年1月1日0点1分
        Calendar cale=Calendar.getInstance();
        cale.set(Calendar.YEAR, 2009);
        cale.set(Calendar.MONTH, Calendar.JANUARY);
        cale.set(Calendar.DATE,1);
        cale.set(Calendar.HOUR_OF_DAY,0);
        cale.set(Calendar.MINUTE,1);
        date=cale.getTime();
        dateField1.setDate(date);
        long ldate=date.getTime();
        byte[] bdate=long2bytes(ldate);
        try{
        //打开读取上次响铃记录
        RSMain = RecordStore.openRecordStore("RS",true,RecordStore.AUTHMODE_ANY ,false);
        if (RSMain.getNumRecords()==0){
            RSMain.addRecord(bdate, 0, 8);
        }
        bdate=RSMain.getRecord(1);
        ldate=bytes2long(bdate);
        date.setTime(ldate);
        dateField1.setDate(date);
        //计算下回闹铃时间
        do{
            ldate+=172800000L;
        }while (ldate<System.currentTimeMillis ());
        NextDate=ldate;
        date.setTime(ldate);
        stringItem.setText(date.toString());

        //启动计时器
        is=this.getClass().getResourceAsStream("/ring.wav");
        player=Manager.createPlayer(is,"audio/x-wav");
        //关闭
        RSMain.closeRecordStore();
    }
    catch(Exception e){System.out.print("@@@@@@@@@@@@@@@@@@@@@"+e);};
    }//GEN-BEGIN:|3-startMIDlet|2|
    //</editor-fold>//GEN-END:|3-startMIDlet|2|

    //<editor-fold defaultstate="collapsed" desc=" Generated Method: resumeMIDlet ">//GEN-BEGIN:|4-resumeMIDlet|0|4-preAction
    /**
     * Performs an action assigned to the Mobile Device - MIDlet Resumed point.
     */
    public void resumeMIDlet() {//GEN-END:|4-resumeMIDlet|0|4-preAction
        // write pre-action user code here
//GEN-LINE:|4-resumeMIDlet|1|4-postAction
        // write post-action user code here
    }//GEN-BEGIN:|4-resumeMIDlet|2|
    //</editor-fold>//GEN-END:|4-resumeMIDlet|2|

    //<editor-fold defaultstate="collapsed" desc=" Generated Method: switchDisplayable ">//GEN-BEGIN:|5-switchDisplayable|0|5-preSwitch
    /**
     * Switches a current displayable in a display. The <code>display</code> instance is taken from <code>getDisplay</code> method. This method is used by all actions in the design for switching displayable.
     * @param alert the Alert which is temporarily set to the display; if <code>null</code>, then <code>nextDisplayable</code> is set immediately
     * @param nextDisplayable the Displayable to be set
     */
    public void switchDisplayable(Alert alert, Displayable nextDisplayable) {//GEN-END:|5-switchDisplayable|0|5-preSwitch
        // write pre-switch user code here
        Display display = getDisplay();//GEN-BEGIN:|5-switchDisplayable|1|5-postSwitch
        if (alert == null) {
            display.setCurrent(nextDisplayable);
        } else {
            display.setCurrent(alert, nextDisplayable);
        }//GEN-END:|5-switchDisplayable|1|5-postSwitch
        // write post-switch user code here
    }//GEN-BEGIN:|5-switchDisplayable|2|
    //</editor-fold>//GEN-END:|5-switchDisplayable|2|

    //<editor-fold defaultstate="collapsed" desc=" Generated Method: commandAction for Displayables ">//GEN-BEGIN:|7-commandAction|0|7-preCommandAction
    /**
     * Called by a system to indicated that a command has been invoked on a particular displayable.
     * @param command the Command that was invoked
     * @param displayable the Displayable where the command was invoked
     */
    public void commandAction(Command command, Displayable displayable) {//GEN-END:|7-commandAction|0|7-preCommandAction
        // write pre-action user code here
        if (displayable == form) {//GEN-BEGIN:|7-commandAction|1|24-preAction
            if (command == ChangeCommand) {//GEN-END:|7-commandAction|1|24-preAction
                // write pre-action user code here
                RecordStore RSMain = null;
                Date date;
                long ldate;
                byte[] bdate;
                try{
                    RSMain = RecordStore.openRecordStore("RS",true,RecordStore.AUTHMODE_ANY ,false);
                    date=dateField1.getDate();
                    ldate=date.getTime();
                    bdate=long2bytes(ldate);
                    RSMain.setRecord(1, bdate, 0, 8);
                    //计算下回闹铃时间
                    do{
                        ldate+=172800000L;
                    }while (ldate<System.currentTimeMillis ());
                    NextDate=ldate;
                    date.setTime(ldate);
                    stringItem.setText(date.toString());
                    player.stop();
                }
                catch(Exception e){System.out.print(e);};
                //Ringing(0);
//GEN-LINE:|7-commandAction|2|24-postAction
                // write post-action user code here
            } else if (command == exitCommand) {//GEN-LINE:|7-commandAction|3|19-preAction
                // write pre-action user code here
                Display display = getDisplay();
                display.setCurrent(null);
//GEN-LINE:|7-commandAction|4|19-postAction
                // write post-action user code here
            }//GEN-BEGIN:|7-commandAction|5|7-postCommandAction
        }//GEN-END:|7-commandAction|5|7-postCommandAction
        // write post-action user code here
    }//GEN-BEGIN:|7-commandAction|6|
    //</editor-fold>//GEN-END:|7-commandAction|6|

    //<editor-fold defaultstate="collapsed" desc=" Generated Getter: exitCommand ">//GEN-BEGIN:|18-getter|0|18-preInit
    /**
     * Returns an initiliazed instance of exitCommand component.
     * @return the initialized component instance
     */
    public Command getExitCommand() {
        if (exitCommand == null) {//GEN-END:|18-getter|0|18-preInit
            // write pre-init user code here
            exitCommand = new Command("\u8F6C\u81F3\u540E\u53F0", Command.EXIT, 0);//GEN-LINE:|18-getter|1|18-postInit
            // write post-init user code here
        }//GEN-BEGIN:|18-getter|2|
        return exitCommand;
    }
    //</editor-fold>//GEN-END:|18-getter|2|

    //<editor-fold defaultstate="collapsed" desc=" Generated Getter: form ">//GEN-BEGIN:|14-getter|0|14-preInit
    /**
     * Returns an initiliazed instance of form component.
     * @return the initialized component instance
     */
    public Form getForm() {
        if (form == null) {//GEN-END:|14-getter|0|14-preInit
            // write pre-init user code here
            form = new Form("48Clock", new Item[] { getDateField1(), getStringItem(), getDateField() });//GEN-BEGIN:|14-getter|1|14-postInit
            form.addCommand(getExitCommand());
            form.addCommand(getChangeCommand());
            form.setCommandListener(this);//GEN-END:|14-getter|1|14-postInit
            // write post-init user code here
        }//GEN-BEGIN:|14-getter|2|
        return form;
    }
    //</editor-fold>//GEN-END:|14-getter|2|

    //<editor-fold defaultstate="collapsed" desc=" Generated Getter: dateField1 ">//GEN-BEGIN:|22-getter|0|22-preInit
    /**
     * Returns an initiliazed instance of dateField1 component.
     * @return the initialized component instance
     */
    public DateField getDateField1() {
        if (dateField1 == null) {//GEN-END:|22-getter|0|22-preInit
            // write pre-init user code here
            dateField1 = new DateField("\u4E0A\u6B21\u95F9\u94C3\u65F6\u95F4", DateField.DATE_TIME);//GEN-BEGIN:|22-getter|1|22-postInit
            dateField1.setDate(new java.util.Date(System.currentTimeMillis()));//GEN-END:|22-getter|1|22-postInit
            // write post-init user code here
        }//GEN-BEGIN:|22-getter|2|
        return dateField1;
    }
    //</editor-fold>//GEN-END:|22-getter|2|

    //<editor-fold defaultstate="collapsed" desc=" Generated Getter: ChangeCommand ">//GEN-BEGIN:|23-getter|0|23-preInit
    /**
     * Returns an initiliazed instance of ChangeCommand component.
     * @return the initialized component instance
     */
    public Command getChangeCommand() {
        if (ChangeCommand == null) {//GEN-END:|23-getter|0|23-preInit
            // write pre-init user code here
            ChangeCommand = new Command("\u4FEE\u6539\\\u6D88\u97F3", Command.ITEM, 0);//GEN-LINE:|23-getter|1|23-postInit
            // write post-init user code here
        }//GEN-BEGIN:|23-getter|2|
        return ChangeCommand;
    }
    //</editor-fold>//GEN-END:|23-getter|2|



    //<editor-fold defaultstate="collapsed" desc=" Generated Getter: stringItem ">//GEN-BEGIN:|26-getter|0|26-preInit
    /**
     * Returns an initiliazed instance of stringItem component.
     * @return the initialized component instance
     */
    public StringItem getStringItem() {
        if (stringItem == null) {//GEN-END:|26-getter|0|26-preInit
            // write pre-init user code here
            stringItem = new StringItem("\u4E0B\u6B21\u95F9\u94C3\u65F6\u95F4", "2009-01-01 00:01", Item.PLAIN);//GEN-LINE:|26-getter|1|26-postInit
            // write post-init user code here
        }//GEN-BEGIN:|26-getter|2|
        return stringItem;
    }
    //</editor-fold>//GEN-END:|26-getter|2|

    //<editor-fold defaultstate="collapsed" desc=" Generated Getter: dateField ">//GEN-BEGIN:|27-getter|0|27-preInit
    /**
     * Returns an initiliazed instance of dateField component.
     * @return the initialized component instance
     */
    public DateField getDateField() {
        if (dateField == null) {//GEN-END:|27-getter|0|27-preInit
            // write pre-init user code here
            dateField = new DateField("\u5F53\u524D\u7CFB\u7EDF\u65F6\u95F4", DateField.DATE_TIME);//GEN-BEGIN:|27-getter|1|27-postInit
            dateField.setDate(new java.util.Date(System.currentTimeMillis()));//GEN-END:|27-getter|1|27-postInit
            // write post-init user code here
        }//GEN-BEGIN:|27-getter|2|
        return dateField;
    }
    //</editor-fold>//GEN-END:|27-getter|2|



    /**
     * Returns a display instance.
     * @return the display instance.
     */
    public Display getDisplay () {
        return Display.getDisplay(this);
    }

    /**
     * Exits MIDlet.
     */
    public void exitMIDlet() {
        switchDisplayable (null, null);
        destroyApp(true);
        notifyDestroyed();
    }

    /**
     * Called when MIDlet is started.
     * Checks whether the MIDlet have been already started and initialize/starts or resumes the MIDlet.
     */
    public void startApp() {
        if (midletPaused) {
            resumeMIDlet ();
        } else {
            initialize ();
            startMIDlet ();
        }
        midletPaused = false;
        timer.schedule(MyTask, 100,60000);
        
    }

    /**
     * Called when MIDlet is paused.
     */
    public void pauseApp() {
        midletPaused = true;
    }

    /**
     * Called to signal the MIDlet to terminate.
     * @param unconditional if true, then the MIDlet has to be unconditionally terminated and all resources has to be released.
     */
    public void destroyApp(boolean unconditional) {
    }

}