messagemidlet.java

通讯录~功能有查找、添加、修改好友信息功能

        int records=re.numRecords();//取得记录数

         recordIDs=new int[records];//recordID记录数组

        for(int i=0;i＜RECORDS;I++){ class=cmt recordIDs[i]="re.nextRecordId();//保存id

            data = rs.getRecord(recordIDs[i]);

            personclass.changeFromByteArray(data);

            this.append(''+personclass.getPerson(0)+'',pubclass.createImage('/images/per.png'));//插入此record名称

          }

          SetGet.SetIsTrue(true);

      }

      else {

        this.append('对不起,没有查找到', null);

        SetGet.SetIsTrue(false);

      }

    }

    catch (Exception e) {

    }

  }

  //全局变量ID

  private void SetGetId() {

    int itemid = this.getSelectedIndex();

    SetGet.SetId(recordIDs[itemid]);

  }

  //全局变量ModID

  private void SetGetModId() {

    int itemid = this.getSelectedIndex();

    SetGet.SetModId(recordIDs[itemid]);

  }

  //全局变量DelID

  private void SetGetDelId() {

    int itemid = this.getSelectedIndex();

    SetGet.SetDelId(recordIDs[itemid]);

  }

  //提示信息并返回

  public void AlerNone(){

    MainMIDLet mainmidlet = new MainMIDLet();

    pubclass.Alert('无法操作',mainmidlet);

  }

  public void commandAction(Command c, Displayable d) {

    if(c ==pubclass.exitCommand ){

      if (SetGet.GetIsTrue()){

        this.SetGetModId();

        this.SetGetDelId();

        pubclass.Return_OperateMIDLet();

      }else{

        AlerNone();

      }

    }

    if(c ==pubclass.selectCommand ){

      if (SetGet.GetIsTrue()){

        this.SetGetId();

        pubclass.Return_PersonDetailMIDlet();

      }else{

        AlerNone();

      }

  }

}

}

class nameFilter implements RecordFilter{

        public boolean matches(byte[] candidate){

                DataInputStream person = new DataInputStream(new ByteArrayInputStream(candidate));

                String personcname = '';

                try{

                 personcname = person.readUTF();

           }

           catch(Exception e){

           }

           PersonClass personclass = new PersonClass();

           if(personcname.equals(SetGet.GetStr())) return true;

           else return false;

        }

}

//=========================end================================

//=========================PersonDetailMIDlet指定联系人详细信息================================

package messagemidlet;

import javax.microedition.lcdui.*;

import javax.microedition.rms.*;

public class PersonDetailMIDlet extends Form implements CommandListener {

  //构造公共类实例

  private PubClass pubclass = new PubClass();

  /** Constructor */

  public PersonDetailMIDlet() {

    super('');

    this.ConstructorList();

    //构造按钮

    pubclass.selectCommand = new Command('返回', Command.SCREEN, 2);

    pubclass.exitCommand = new Command('主目录', Command.EXIT, 1);

    //添加监听

    this.addCommand(pubclass.exitCommand);

    this.addCommand(pubclass.selectCommand);

    this.setCommandListener(this);

  }

  //构造LIST，显示详细信息

  private void ConstructorList() {

    try {

      this.GetPersonDetail();

    }

    catch (RecordStoreException ex) {

    }

  }

  //绑定对应ID数据，并显示

  private void GetPersonDetail() throws RecordStoreException {

    RecordStore rs = null;

    //打开数据库

    rs = pubclass.Open();

    //建立枚举,取得对应ID的详细信息

    try {

      byte[] data;

      RecordEnumeration re = rs.enumerateRecords(null, null, false);

      data = rs.getRecord(SetGet.GetId());

      //重新构造,并把byte转换为string类型

      PersonClass personclass = new PersonClass();

      personclass.changeFromByteArray(data);

      //重新设置用户ID

      int RecordId = rs.getNextRecordID();

      //给对应的属性赋值

      for (int i = 0; i ＜ pubclass.persondetail.length; i++) {

        this.append(pubclass.persondetail[i]);

        pubclass.persondetail[i].setText(personclass.getPerson(i));

      }

      //设置标题为用户名

      this.setTitle(personclass.getPerson(0));

    }

    catch (RecordStoreNotOpenException ex) {

    }

  }

  public void commandAction(Command c, Displayable d) {

    if(c == pubclass.selectCommand){

      pubclass.Return_PersonListMIDLet();

    }

    if(c == pubclass.exitCommand){

      pubclass.Return_MenuMIDLet();

    }

  }

}

//=========================end================================

//=========================OperateMIDlet操作联系人类(这里只有删除功能)================================

package messagemidlet;

import javax.microedition.midlet.*;

import javax.microedition.lcdui.*;

import javax.microedition.rms.*;

public class OperateMIDlet extends List implements CommandListener {

  //构造公共类实例

  private PubClass pubclass = new PubClass();

  /** Constructor */

  public OperateMIDlet() {

    super('联系人', List.IMPLICIT);

    for (int i = 0; i ＜ pubclass.operatelist.length; i++) {

      this.append(pubclass.Get_OperateList(i), pubclass.createImage('/images/edit.png'));

    }

    //构造按钮

    pubclass.operCommand = new Command('选择', Command.SCREEN, 2);

    pubclass.menuCommand = new Command('主目录', Command.EXIT, 1);

    //添加监听

    this.addCommand(pubclass.menuCommand);

    this.addCommand(pubclass.operCommand);

    this.setCommandListener(this);

  }

//删除指定记录

  public void Del(int delid) {

    PersonClass personclass = new PersonClass();

    RecordStore rs = null;

    rs = pubclass.Open();

    try {

      //判断是否又记录

      if(rs.getNumRecords()＜1){

        pubclass.Alert('还未添加记录！返回中.......');

      }else{

        //bug

        rs.deleteRecord(delid);

        AlertInfo('删除成功！返回中.......');

      }

    }

    catch (Exception e) {

      AlertInfo('删除失败！返回中.......');

    }

  }

//全部删除记录

  public void Delall() {

    PersonClass personclass = new PersonClass();

    RecordStore rs = null;

    rs = pubclass.Open();

    //判断是否又记录

    try {

      if (rs.getNumRecords() ＜ 1) {

        pubclass.Alert('还未添加记录！返回中.......');

      }

      else {

        //构造RecordEnumeration实例,取出记录

        RecordEnumeration re = rs.enumerateRecords(null, null, false);

        //根据ID,循环删除

        while (re.hasNextElement()) {

          int recoidId = re.nextRecordId();

          rs.deleteRecord(recoidId);

        }

        AlertInfo('删除成功！返回中.......');

      }

    }

    catch (Exception e) {

       AlertInfo('删除失败！返回中.......');

    }

  }

  public void AlertInfo(String info){

    PersonListMIDlet Personlistmidlet = new PersonListMIDlet();

    pubclass.Alert(in, fo,Personlistmidlet);

  }

  public void commandAction(Command c, Displayable d) {

    if(c ==pubclass.menuCommand  ){

      pubclass.Return_MenuMIDLet();

    }

    if(c ==pubclass.operCommand ){

      int selectitem = this.getSelectedIndex();

     //尽量不使用Switch，用If提高速度，虽然麻烦点，经验所得

     if (selectitem == 0) {

       pubclass.Return_ModifyPersonMIDlet();

     }

     if (selectitem == 1) {

       Del(SetGet.GetDelId());

       SetGet.SetDelId(0);

     }

     if (selectitem == 2) {

       Delall();

       SetGet.SetDelId(0);

     }

    }

  }

}

//=========================end================================

//=========================ModifyPersonMIDlet修改指定联系人详细信息================================

package messagemidlet;

import javax.microedition.lcdui.*;

import javax.microedition.rms.*;

public class ModifyPersonMIDlet extends Form implements CommandListener  {

  //构造公共类实例

  private PubClass pubclass = new PubClass();

  /** Constructor */

  public ModifyPersonMIDlet() {

    super('');

    try {

      this.GetPersonDetail();

    }

    catch (RecordStoreException ex) {

    }

     //构造按钮

    pubclass.exitCommand = new Command('主目录', Command.OK, 1);

    pubclass.okCommand = new Command('修改', Command.BACK, 2);

   //添加监听

    this.addCommand(pubclass.exitCommand);

    this.addCommand(pubclass.okCommand);

    this.setCommandListener(this);

  }

  //绑定对应ID数据，并显示

  private void GetPersonDetail() throws RecordStoreException {

    RecordStore rs = null;

    //打开数据库

    rs = pubclass.Open();

    //建立枚举,取得对应ID的详细信息

    try {

      byte[] data;

      RecordEnumeration re = rs.enumerateRecords(null, null, false);

      data = rs.getRecord(SetGet.GetModId());

      //重新构造,并把byte转换为string类型

      PersonClass personclass = new PersonClass();

      personclass.changeFromByteArray(data);

      //重新设置用户ID

      int RecordId = rs.getNextRecordID();

      //给对应的属性赋值

      for (int i = 0; i ＜ pubclass.person.length; i++) {

        this.append(pubclass.person[i]);

        pubclass.person[i].setString(personclass.getPerson(i));

      }

      //设置标题为用户名

      this.setTitle('修改'+personclass.getPerson(0));

    }

    catch (RecordStoreNotOpenException ex) {

    }

    rs.closeRecordStore();

  }

  //修改联系人

  public void UpdataPerson() {

    RecordStore rs = null;

    rs = pubclass.Open();

    try {

      //取得textfield每个直，以数组形式保存

      String[] getstring = new String[pubclass.Length];

      for (int i = 0; i ＜ pubclass.Length; i++) {

        getstring[i] = pubclass.person[i].getString();

      }

      //构造personclass实例

      PersonClass personclass = new PersonClass();

      personclass.Write(getstring);

      byte[] data = personclass.changeToByteArray();

      int recordId = personclass.GetRecordID();

      if (recordId != -1) {

        rs.setRecord(recordId, data, 0, data.length);

      }

      else {

        //修改记录

        rs.setRecord(SetGet.GetModId(),data,0,data.length);//rs.setRecord(SetGet.GetModId(), data,0, data.length);

        personclass.SetRecordID(recordId);

      }

      SetGet.SetModId(0);

      PersonListMIDlet Personlistmidlet = new PersonListMIDlet();

      pubclass.Alert('修改成功！返回中.......',Personlistmidlet);

    }

    catch (Exception e) {

      PersonListMIDlet Personlistmidlet = new PersonListMIDlet();

      pubclass.Alert('修改失败',Personlistmidlet);

    }

  }

  public void commandAction(Command c, Displayable d) {

    if(c == pubclass.exitCommand){

      pubclass.Return_MenuMIDLet();

    }

    if(c == pubclass.okCommand){

      //判断至少要填写姓名

      if (pubclass.person[0].getString() == null || pubclass.person[0].getString() == '') {

        pubclass.Alert('至少要填写姓名');

      }

      else {

        this.UpdataPerson();

      }

    }

  }

}