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J2ME 通讯录代码
摘要: 花了两天时间搞定了通讯录,基本功能能实现, 现在拿出来给大家一起交流,希望大家能找出BUG.
花了两天时间搞定了J2ME 通讯录,基本功能能实现
现在拿出来给大家一起交流,希望大家能找出BUG
以下是代码:请保留作者版权,谢谢
//=====================MessageMIDlet主类===============================
package messagemidlet;
//主类
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
public class MessageMIDlet extends MIDlet {
public static MessageMIDlet messagemidlet;
private MenuMIDLet menumidlet = new MenuMIDLet();
/** Constructor */
public MessageMIDlet() {
messagemidlet = this;
}
/** Main method */
public void startApp() {
Display.getDisplay(this).setCurrent(menumidlet);
}
/** Handle pausing the MIDlet */
public void pauseApp() {
}
/** Handle destroying the MIDlet */
public void destroyApp(boolean unconditional) {
}
/** Quit the MIDlet */
public static void quitApp() {
messagemidlet.destroyApp(true);
messagemidlet.notifyDestroyed();
messagemidlet = null;
}
}
//=========================end================================
//=========================SetGet操作用到的属性================================
package messagemidlet;
///JAVA为什么不像c#一样有GET SET 来设置属性，所以麻烦点，我还是喜欢C#
public class SetGet {
public static int Id = 0;
public static int DelId = 0;
public static int ModId = 0;
public static String Str = null;
public static boolean IsOK =true ;
/** Constructor */
public SetGet() {
}
public static void SetId(int id){
Id = id;
}
public static int GetId(){
return Id;
}
public static void SetDelId(int id) {
DelId = id;
}
public static int GetDelId() {
return DelId;
}
public static void SetModId(int id) {
ModId = id;
}
public static int GetModId() {
return ModId;
}
public static void SetStr(String str){
Str = str;
}
public static String GetStr(){
return Str;
}
public static void SetIsTrue(boolean istrue){
IsOK = istrue;
}
public static boolean GetIsTrue(){
return IsOK;
}
}
//=========================end================================
//=========================PubClass公共类(集成一些常用属性和方法,方便调用)================================
package messagemidlet;
import javax.microedition.lcdui.*;
import javax.microedition.rms.*;
import java.io.*;
public class PubClass {
public static PubClass pubclass;
public Display display; //舞台对象
public Command exitCommand; //离开按钮对象
public Command selectCommand; //选择按钮对象
public Command menuCommand; //主目录
public Command okCommand ;
public Command operCommand;
public String[] menulist = {'通讯录','关于作者'}; //主菜单选项
public String[] mainlist ={'浏览联系人','查找联系人','添加联系人','其他'};
public String[] operatelist={'编辑联系人','删除联系人','全部删除'}; //操作
//只需修改personpro属性，其他自动生成，构造
public String[] personpro ={'姓名','手机','Email','地址','其他'}; //用户属性
public int Length = personpro.length; //用户属性个数
public String dataname = 'messages'; //数据库名
public boolean existingOrNot = existing(dataname);
RecordStore rs = null;
public TextField[] person = new TextField[Length];
public StringItem[] persondetail = new StringItem[Length];
/** 构造函数 */
public PubClass() {
for(int i=0;i ＜ LENGTH;I++){ class=kwd person[i]="new TextField(personpro[i], '', 256, TextField.ANY);
persondetail[i] = new StringItem(personpro[i],'');
}
}
//取得主目录列表
public String Get_MenuList(int i){
if(this.mainlist.length＜0){
return '';
}
return this.menulist[i];
}
//取得通讯录列表
public String Get_MainList(int j){
if(this.mainlist.length＜0){
return '';
}
return this.mainlist[j];
}
//取得联系人操作列表
public String Get_OperateList(int j){
if(this.operatelist.length＜0){
return '';
}
return this.operatelist[j];
}
//返回关于
public void Return_AboutMIDlet() {
AboutMIDlet aboutmidlet = new AboutMIDlet();
display.getDisplay(MessageMIDlet.messagemidlet).setCurrent(aboutmidlet);
}
//返回主目录
public void Return_MainMIDLet() {
MainMIDLet mainmidlet = new MainMIDLet();
display.getDisplay(MessageMIDlet.messagemidlet).setCurrent(mainmidlet);
}
//返回通讯录列表
public void Return_MenuMIDLet(){
MenuMIDLet menumidlet = new MenuMIDLet();
display.getDisplay(MessageMIDlet.messagemidlet).setCurrent(menumidlet);
}
//返回联系人列表
public void Return_PersonListMIDLet(){
PersonListMIDlet personlistmidlet = new PersonListMIDlet();
display.getDisplay(MessageMIDlet.messagemidlet).setCurrent(personlistmidlet);
}
//返回查找联系人
public void Return_SearchPersonMIDlet(){
}
//返回添加联系人
public void Return_AddPersonMIDLet(){
AddPersonMIDLet addpersonmidlet = new AddPersonMIDLet();
display.getDisplay(MessageMIDlet.messagemidlet).setCurrent(addpersonmidlet);
}
//返回操作
public void Return_OperateMIDLet(){
OperateMIDlet operatemidlet = new OperateMIDlet();
display.getDisplay(MessageMIDlet.messagemidlet).setCurrent(operatemidlet);
}
//返回查找
public void Return_SearchMIDlet() {
SearchMIDlet searrchmidlet = new SearchMIDlet();
display.getDisplay(MessageMIDlet.messagemidlet).setCurrent(searrchmidlet);
}
//返回查找结果
public void Return_SearchOutMIDlet() {
SearchOutMIDlet searrchoutmidlet = new SearchOutMIDlet();
display.getDisplay(MessageMIDlet.messagemidlet).setCurrent(searrchoutmidlet);
}
//返回编辑
public void Return_ModifyPersonMIDlet() {
ModifyPersonMIDlet modiftpersonmidlet = new ModifyPersonMIDlet();
display.getDisplay(MessageMIDlet.messagemidlet).setCurrent(modiftpersonmidlet);
}
//返回联系人详细列表,并传入对应ID值 ModifyPersonMIDlet
public void Return_PersonDetailMIDlet(){
PersonDetailMIDlet persondetailmidlet = new PersonDetailMIDlet();
display.getDisplay(MessageMIDlet.messagemidlet).setCurrent(persondetailmidlet);
}
//警告窗口
public void Alert(String alertstring){
Alert alert = new Alert('提示',alertstring,createImage('/images/1.png'),AlertType.ERROR);
alert.setTimeout(2000);
display.getDisplay(MessageMIDlet.messagemidlet).setCurrent(alert);
}
//警告窗口,提示后返回MainMIDLet
public void Alert(String alertstring,MainMIDLet mainmidlet){
Alert alert = new Alert('提示',alertstring,createImage('/images/1.png'),AlertType.ERROR);
alert.setTimeout(2000);
display.getDisplay(MessageMIDlet.messagemidlet).setCurrent(alert,mainmidlet);
}
//警告窗口,提示后返回PersonListMIDlet
public void Alert(String alertstring, PersonListMIDlet Personlistmidlet) {
Alert alert = new Alert('提示', alertstring, createImage('/images/1.png'),AlertType.ERROR);
alert.setTimeout(2000);
display.getDisplay(MessageMIDlet.messagemidlet).setCurrent(alert, Personlistmidlet);
}
//创建图像
public static Image createImage(String name){
Image aImage = null;
try{
aImage = Image.createImage(name);
}
catch(IOException e){
}
return aImage;
}
//判断数据库是否存在，打开,然会RecordStore对象
public RecordStore Open(){
boolean existingOrNot = false;
boolean OK = true;
existingOrNot = this.existing(dataname);
if (existingOrNot) {
try {
rs = RecordStore.openRecordStore(dataname, false);
}
catch (Exception e) {
OK = false;
}
}
else {
try {
rs = RecordStore.openRecordStore(dataname, true);
OK = true;
}
catch (Exception e) {
OK = false;
}
}
return rs;
}
//判断字符大小
public boolean existing(String recordStoreString) {
boolean existingOrNot = false;
RecordStore rs = null;
if (recordStoreString.length() ＞ 32)
return false;
try {
rs = RecordStore.openRecordStore(recordStoreString, false);
}
catch (RecordStoreNotFoundException e) {
existingOrNot = false;
}
catch (Exception e) {
}
finally {
try {
rs.closeRecordStore();
}
catch (Exception e) {
}
}
return existingOrNot;
}
}
//=========================end================================
//=========================PersonClass用户属性类================================
package messagemidlet;
//联系人属性类
import java.io.*;
import javax.microedition.rms.*;
public class PersonClass {
private static PersonClass personclass;
//构造公共类实例
private PubClass pubclass = new PubClass();
public static int Id = -1; //设置静态ID，赋值后不需要重新构造而不能调用
//联系人属性,数组
public String[] PersonPro = new String[pubclass.Length] ;
public void Write(String[] PersonPro){
for(int i = 0;i＜PERSONPRO.LENGTH class=kwd this.PersonPro[i] = PersonPro[i];
}
}
//设置ID，起修改，删除，显示作用
public void SetRecordID(int Id){
this.Id = Id;
}
//取得ID
public static int GetRecordID(){
return Id;
}
//转换为字节
public byte[] changeToByteArray(){
byte[] data = null;
try{
ByteArrayOutputStream baos = new ByteArrayOutputStream();
DataOutputStream dos = new DataOutputStream(baos);
for(int j=0;j＜this.PersonPro.length;j++){
dos.writeUTF(this.PersonPro[j]);
}
data = baos.toByteArray();
baos.close();
dos.close();
}
catch(Exception e){
return null;
}
return data;
}
public void changeFromByteArray(byte[] data) {
try {
ByteArrayInputStream bais = new ByteArrayInputStream(data);
DataInputStream dis = new DataInputStream(bais);
for(int k=0;k＜PERSONPRO.LENGTH;K++){ class=kwd this.PersonPro[k] = dis.readUTF();
}
bais.close();
dis.close();
}
catch (Exception e) {
}
}
public String getPerson(int m) {
return this.PersonPro[m];
}
public String GetListName(int RecordId){
return this.PersonPro[0];
}
}
//=========================end================================
//=========================MenuMIDLet主目录里表类================================
package messagemidlet;
import javax.microedition.lcdui.*;
import java.io.*;
public class MenuMIDLet extends List implements CommandListener {
//构造公共类实例
private PubClass pubclass = new PubClass();
/** Constructor */
public MenuMIDLet() {
super('通讯录',List.IMPLICIT);
for(int i=0;i＜PUBCLASS.MENULIST.LENGTH;I++){ class=kwd this.append(pubclass.Get_MenuList(i),pubclass.createImage('/images/tel.png'));
}
//构造按钮
pubclass.selectCommand = new Command('选择', Command.SCREEN, 2);
pubclass.exitCommand = new Command('离开', Command.EXIT, 1);
//添加监听
this.addCommand(pubclass.exitCommand);
this.addCommand(pubclass.selectCommand);
this.setCommandListener(this);
}
public void commandAction(Command c, Displayable d) {
if(c == pubclass.selectCommand ){
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_MainMIDLet();
}
if (selectitem == 1) {
pubclass.Return_AboutMIDlet();
}
}
//退出
if(c == pubclass.exitCommand){
MessageMIDlet.quitApp();
}
}
}
//=========================end================================
//=========================AboutMIDlet关于作者类(显示作者信息)================================
package messagemidlet;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.Displayable;
public class AboutMIDlet extends Form implements CommandListener {
//构造公共类实例
private PubClass pubclass = new PubClass();
/** Constructor */
public AboutMIDlet() {
super('');
this.setTitle('关于作者');
StringItem stringitem = new StringItem('作者介绍','01网通(2)02号. 姓名:Sukey. 版权所有:Sukey.');
this.append(stringitem);
//构造按钮
pubclass.menuCommand = new Command('主目录', Command.SCREEN, 1);
pubclass.exitCommand = new Command('离开', Command.BACK, 1);
//添加监听
this.addCommand(pubclass.menuCommand);
this.addCommand(pubclass.exitCommand);
this.setCommandListener(this);
}
public void commandAction(Command c, Displayable d) {
if(c ==pubclass.menuCommand ){
pubclass.Return_MenuMIDLet();
}
if(c == pubclass.exitCommand){
MessageMIDlet.quitApp();
}
}
}
//=========================end================================
//=========================MainMIDLet通讯录里表类================================
package messagemidlet;
//
import javax.microedition.lcdui.*;
public class MainMIDLet extends List implements CommandListener {
//构造公共类实例
private PubClass pubclass = new PubClass();
/** Constructor */
public MainMIDLet() {
super('通讯录',List.IMPLICIT);
//显示列表
for(int i=0;i＜PUBCLASS.MAINLIST.LENGTH;I++){ class=kwd this.append(pubclass.Get_MainList(i),pubclass.createImage('/images/tel.png'));
}
//构造按钮
pubclass.selectCommand = new Command('选择', Command.OK, 1);
pubclass.menuCommand = new Command('主目录', Command.EXIT, 2);
//添加监听
this.addCommand(pubclass.selectCommand);
this.addCommand(pubclass.menuCommand);
this.setCommandListener(this);
}
public void commandAction(Command c, Displayable d) {
if (c == pubclass.selectCommand) {
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_PersonListMIDLet();
}
if (selectitem == 1) {
pubclass.Return_SearchMIDlet();
}
if (selectitem == 2) {
pubclass.Return_AddPersonMIDLet();
}
if (selectitem == 3) {
}
}
if(c == pubclass.menuCommand){
pubclass.Return_MenuMIDLet();
}
}
}
//=========================end================================
//=========================AddPersonMIDLet添加联系人类================================
package messagemidlet;
import javax.microedition.lcdui.*;
import javax.microedition.rms.*;
public class AddPersonMIDLet extends Form implements CommandListener {
//构造公共类实例
private PubClass pubclass = new PubClass();
/** Constructor */
public AddPersonMIDLet() {
super('');
this.setTitle('添加联系人');
for(int i=0;i＜PUBCLASS.PERSON.LENGTH;I++){ class=kwd this.append(pubclass.person[i]);
}
//构造按钮
pubclass.exitCommand = new Command('返回', Command.OK, 1);
pubclass.okCommand = new Command('保存', Command.BACK, 2);
//添加监听
this.addCommand(pubclass.exitCommand);
this.addCommand(pubclass.okCommand);
this.setCommandListener(this);
}
//添加记录
private void AddRecord(){
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++){ class=cmt //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 {
//添加记录
recordId = rs.addRecord(data, 0, data.length);
}
SetGet.SetDelId(0);
MainMIDLet mainmidlet = new MainMIDLet();
pubclass.Alert('添加成功！返回中.......', mainmidlet);
}
catch (Exception e) {
pubclass.Alert('添加联系人失败');
}
}
public void commandAction(Command c, Displayable d) {
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{
//添加记录
AddRecord();
}
}
if(c == pubclass.exitCommand){
pubclass.Return_MainMIDLet();
}
}
}
//=========================end================================
//=========================PersonListMIDlet联系人列表类(显示联系人列表)================================
package messagemidlet;
import javax.microedition.lcdui.*;
import javax.microedition.rms.*;
public class PersonListMIDlet extends List implements CommandListener {
//构造公共类实例
private PubClass pubclass = new PubClass();
private PersonClass personclass = new PersonClass();
public int[] recordIDs;
/** Constructor */
public PersonListMIDlet() {
super('联系人列表',List.IMPLICIT);
PersonList();
//构造按钮
pubclass.selectCommand = new Command('查看', Command.SCREEN, 2);
pubclass.exitCommand = new Command('编辑', Command.EXIT, 1);
//添加监听
this.addCommand(pubclass.exitCommand);
this.addCommand(pubclass.selectCommand);
this.setCommandListener(this);
}
//用户列表
public void PersonList() {
RecordStore rs = null;
rs = pubclass.Open();
try {
byte[] data;
//建立枚举,取出记录
RecordEnumeration re = rs.enumerateRecords(null, null, false);
//判断是否又记录
if (re.hasNextElement()) {
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('还未添加联系人?', 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DelID
private void SetGetDelId() {
int itemid = this.getSelectedIndex();
SetGet.SetDelId(recordIDs[itemid]);
}
private void SetGetModId(){
int itemid = this.getSelectedIndex();
SetGet.SetModId(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.SetGetDelId();
this.SetGetModId();
pubclass.Return_OperateMIDLet();
}else{
AlerNone();
}
}
if(c ==pubclass.selectCommand ){
if (SetGet.GetIsTrue()){
this.SetGetId();
pubclass.Return_PersonDetailMIDlet();
}else{
AlerNone();
}
}
}
}
//=========================end================================
//=========================SearchMIDlet查找类================================
package messagemidlet;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.Displayable;
public class SearchMIDlet extends TextBox implements CommandListener{
//构造公共类实例
private PubClass pubclass = new PubClass();
/** Constructor */
public SearchMIDlet() {
super('查找联系人','',256,0);
//构造按钮
pubclass.menuCommand = new Command('查找', Command.SCREEN, 1);
pubclass.okCommand = new Command('主目录', Command.BACK, 1);
//添加监听
this.addCommand(pubclass.menuCommand);
this.addCommand(pubclass.okCommand);
this.setCommandListener(this);
}
public void commandAction(Command c, Displayable d) {
if(c ==pubclass.okCommand ){
pubclass.Return_MenuMIDLet();
}
if(c ==pubclass.menuCommand){
//设置全局变量
SetGet.SetStr(this.getString());
pubclass.Return_SearchOutMIDlet();
}
}
}
//=========================end================================
//=========================SearchOutMIDlet查找结果类================================
package messagemidlet;
import javax.microedition.lcdui.*;
import javax.microedition.rms.*;
import java.io.*;
public class SearchOutMIDlet extends List implements CommandListener {
//构造公共类实例
private PubClass pubclass = new PubClass();
private PersonClass personclass = new PersonClass();
public int[] recordIDs;
/** Constructor */
public SearchOutMIDlet() {
super('查找结果', List.IMPLICIT);
PersonList();
//构造按钮
pubclass.selectCommand = new Command('查看', Command.SCREEN, 2);
pubclass.exitCommand = new Command('编辑', Command.EXIT, 1);
//添加监听
this.addCommand(pubclass.exitCommand);
this.addCommand(pubclass.selectCommand);
this.setCommandListener(this);
}
//用户列表
public void PersonList() {
RecordStore rs = null;
rs = pubclass.Open();
try {
byte[] data;
//匹配
RecordFilter rf = new nameFilter();
//建立枚举,取出记录
RecordEnumeration re = rs.enumerateRecords(rf, null, false);
//判断是否又记录
if (re.hasNextElement()) {
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();
}
}
}
}
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