openfire+asmack搭建的安卓即时通讯（七） 15.5.27

本地化之章！

　往期传送门：

　　1.http://www.cnblogs.com/lfk-dsk/p/4398943.html

　　2.http://www.cnblogs.com/lfk-dsk/p/4411625.html

　　3.http://www.cnblogs.com/lfk-dsk/p/4412126.html

　　4.http://www.cnblogs.com/lfk-dsk/p/4413693.html

　　5.http://www.cnblogs.com/lfk-dsk/p/4419418.html

　　6.http://www.cnblogs.com/lfk-dsk/p/4433319.html

真没想到这东西居然还会写到第七篇，很多亲们的反馈和鼓励给了我很大的动力啊，最近正好朋友也在做这个东西，但是我们用一样的库和后端做的东西居然不一样（他用这个做了联网弹幕！），不过确实发现了一些问题比如asmack的库内容参差不齐，很多提供方法都不一样，看来使用者们都或多或少的对源码进行了一些修改，都变得乱糟糟的呢！

这里就提供一下我自己用的asmack库吧，省的大家用的不一样：http://files.cnblogs.com/files/lfkdsk/asmack.zip

这次的博文先从完成的效果开始吧，这个并不是最终稿，因为虽然完成了很多的功能啊，但是还有一些问题，比如接收数据没用广播啊，监听的ChatListener没放在server里啊，好友系统并不完善啊，很多的东西还没有完成，到时候还要根据这些东西进行一些修改，但是现在需要的功能已经够用了，接着的那些东西也不过是要应用asmack库里的东西而已了，好了先上效果图：

（1.首先登录界面增加了Ip的选项，更具有Spark的android版的感觉，通用性强了，不过我之后要是想上线让大家用可能会删掉）

（2.现在不打开具体的聊天窗口，程序也不会蹦了，因为原来是直接向listview里面添加数据，可是listview还没初始化所以会崩）

（3.打开具体的useractivity就会取出原来的数据然后还有新打印的出来的）

（4.信息由于是走数据库了，所以分发也不会想原来一样出错了）                                                                                                      　　　　　　　　　

　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 

（5.我不想用传统的通知栏，那个用户能禁用，哈哈哈哈哈哈哈，我用了定制的Toast，在桌面的时候接到消息就会弹出一个Toast提示！）

好了这就是我们本次要达成的效果，让我们一个一个来！

1.首先从主界面的输入IP开始：

  <TableRow>
             <TextView
                 android:textColor="#ffc2c6c6"
                 android:layout_height="wrap_content"
                 android:text="Ip"/>
             <EditText
                 android:id="@+id/login_ip"
                 android:hint="Input your Ip"
                 android:maxLines="1"
                 android:layout_height="wrap_content"
                 />
         </TableRow>

先在TableLayout里添加。

静态数据类里添加：

     //ip名称
     public static String My_Ip = "";

主活动的添加：

ip = (EditText) findViewById(R.id.login_ip);

check_init()函数里添加：

  private void checkbox_init() {//checkbox判断函数
         //判断记住密码多选框的状态
         if(sp.getBoolean("ISCHECK", false))
         {
             //设置默认是记录密码状态
             check_save.setChecked(true);
             ip.setText(sp.getString("USER_IP", ""));
             name.setText(sp.getString("USER_NAME",""));
             password.setText(sp.getString("PASSWORD",""));
             //判断自动登陆多选框状态
             if(sp.getBoolean("AUTO_ISCHECK", false))
             {
                 //设置默认是自动登录状态
                 check_auto.setChecked(true);
                 //跳转界面
                 //account=sp.getString("USER_NAME","");
                 //pwd=sp.getString("PASSWORD","");
                 Log.i("======================"+account,pwd+"===================================");
                 accountLogin();
             }
         }
     }
     private void setCheck_save(){
         if(check_save.isChecked())
         {
             //记住用户名、密码、
             editor = sp.edit();
             editor.putString("USER_IP", user.My_Ip);
             editor.putString("USER_NAME", account);
             editor.putString("PASSWORD",pwd);
             editor.apply();
         }
     }

这个是把Ip添加进记录。

修改登录的方法：

    private void accountLogin() {
         new Thread() {
             public void run() {
                 user.My_Ip = ((EditText)findViewById(R.id.login_ip))
                         .getText().toString();
                 account = ((EditText) findViewById(R.id.login_name))
                         .getText().toString();
                 pwd = ((EditText) findViewById(R.id.login_password)).getText()
                         .toString();
                 boolean is = ConnecMethod.login(account, pwd);
                 if (is) {
                     insHandler.sendEmptyMessage(1);
                     // 将用户名保存
                     user.UserName = account+"@lfkdsk/Spark 2.6.3";
                     user.UserName_= account;
                     setCheck_save();
                 } else {
                     insHandler.sendEmptyMessage(0);
                 }
             }
         }.start();
     }

　 但是要是逐层的为函数添加参数，然后无限的传参也是一种不太现实的方法，所以我们在XMpp连接的地方直接调用静态存储的IP:

     public static boolean openConnection() {
         try {
             connConfig = new ConnectionConfiguration(user.My_Ip, 5222);
             // 设置登录状态为离线
             connConfig.setSendPresence(false);
             // 断网重连
             connConfig.setReconnectionAllowed(true);
             con = new XMPPConnection(connConfig);
             con.connect();
             return true;
         } catch (Exception e) {

         }
         return false;
     }

　 这样我们登陆的时候就能手动指定ip或者是域名了，增强了通用性。

　　 2.本地化数据的具体操作：

　　1.新建一个类作为本地数据库的模版：

 package com.lfk.webim.appli;

 import android.util.Log;

 /**
  * Created by Administrator on 2015/5/26.
  */
 public class TalkLogs {
     private String ID = "_id";              //数据库主键，自增
     private String With_Id ="with_id";      //和谁聊天
     private String Logs = "talklogs";       //聊天记录
     private String If_read = "_ifread";     //是否已读
     private String dbname;                  //数据表名---为用户名，即user.UserName_
     private String CREAT_DB = "";           //数据库新建的语句

     public TalkLogs(String dbname){
         this.dbname = dbname;
         giveanameto(dbname);
         Log.e("dbname=====", this.dbname);
         Log.e("dbname参数=====",dbname);
     }
     private void giveanameto(String dbname){
         CREAT_DB = "CREATE TABLE if not exists "+dbname+"("
                 +this.ID +" integer primary key autoincrement,"
                 +this.With_Id+","
                 +this.If_read+" integer,"
                 + this.Logs+")";
     }
     public String returnAString(){
         Log.e("CREAT_DB===========",CREAT_DB);
         return CREAT_DB;
     }
 }

 package com.lfk.webim.appli;

 import android.content.Context;
 import android.database.sqlite.SQLiteDatabase;
 import android.database.sqlite.SQLiteOpenHelper;
 import android.widget.Toast;

 /**
  * Created by Administrator on 2015/5/25.
  */
 public class SQLiteHelper extends SQLiteOpenHelper {
     private Context mcontext;
     public SQLiteHelper(Context context, String name, SQLiteDatabase.CursorFactory factory, int version) {
         super(context, name, factory, version);
         mcontext = context;
     }
     @Override
     public void onCreate(SQLiteDatabase db) {
         //db.execSQL(CREAT_DB);
         Toast.makeText(mcontext, "succeed collect！", Toast.LENGTH_SHORT).show();
     }

     @Override
     public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
     }
 }

　　写一个空的SQLiteHelper，把表放在后面。

　　代码里做了详细的注释，类里面传入用户名，返回新建表的String语句。

     public void CreateNewTable(){
         sqLiteHelper = new SQLiteHelper(this,"user_logs.db",null,1);    //新建.db文件
         sqLiteDatabase = sqLiteHelper.getWritableDatabase();
         TalkLogs talklog = new TalkLogs(user.UserName_);                //获取新建表的语句
         sqLiteDatabase.execSQL(talklog.returnAString());                //新建表
         Toast.makeText(friend.this, user.UserName_+" Create success",Toast.LENGTH_SHORT).show();
         Log.e(user.UserName_, "success!!!");
         //sqLiteDatabase.close();
         }

　　在friend的activity里面，新建该方法，每次进入朋友界面，新建以用户名为名的表，因为用的SQL语句写了if exist 所以已有的不会新建。

 final ClientConServer server = new ClientConServer(this,mhandler,this.sqLiteDatabase);

　　对工具类进行实例化，可以解决静态方法不能用在非静态上下文的问题，这里传入context，handler，和数据库，数据库是为了防止打开重复，传入handler是为了桌面Toast

　　2.修改后的friend活动：

 package com.lfk.webim;

 import android.content.Intent;
 import android.database.sqlite.SQLiteDatabase;
 import android.os.Bundle;
 import android.os.Handler;
 import android.support.v4.widget.SwipeRefreshLayout;
 import android.util.Log;
 import android.view.Gravity;
 import android.view.KeyEvent;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.AdapterView;
 import android.widget.ArrayAdapter;
 import android.widget.ImageView;
 import android.widget.ListView;
 import android.widget.TextView;
 import android.widget.Toast;

 import com.lfk.webim.appli.BaseActivity;
 import com.lfk.webim.appli.SQLiteHelper;
 import com.lfk.webim.appli.TalkLogs;
 import com.lfk.webim.appli.user;
 import com.lfk.webim.server.Myserver;
 import com.lfk.webim.server.connect;

 public class friend extends BaseActivity {
     public static ArrayAdapter<String> mArrayAdapter;
     public SwipeRefreshLayout swipeLayout;
     private SQLiteDatabase sqLiteDatabase;
     private SQLiteHelper sqLiteHelper;
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_friend);

         CreateNewTable();
         final ClientConServer server = new ClientConServer(this,mhandler,this.sqLiteDatabase);

         swipeLayout = (SwipeRefreshLayout)findViewById(R.id.swipe_refresh);
         TextView textView=(TextView)findViewById(R.id.name);
         textView.setText(user.UserName_ + "的朋友");

         Intent intentServer= new Intent(this, Myserver.class);
         startService(intentServer);

         final ListView listView=(ListView)findViewById(R.id.friend_list);
         mArrayAdapter= new ArrayAdapter<String>(this, R.layout.list_item);
         listView.setAdapter(mArrayAdapter);

         //server.getFriends();
         //server.getChat();

         listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
             @Override
             public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
                                     long arg3) {
                 String temp = (String) ((TextView) arg1).getText();
                 Intent intent = new Intent();
                 String temper = temp + "@lfkdsk/Smack";
                 Log.e(temp + "================", temper);
                 user.FromName = temper;
                 user.FromName_ = temp;
                 intent.putExtra("FromName", temper);
                 intent.setClass(friend.this, useractivity.class);
                 startActivity(intent);
                 Toast.makeText(getApplicationContext(),
                         "Chat with " + temp,
                         Toast.LENGTH_SHORT).show();
                 mArrayAdapter.notifyDataSetChanged();
             }
         });

         swipeLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
             @Override
             public void onRefresh() {
                 new Handler().postDelayed(new Runnable() {//延迟跳转=-=
                     public void run() {
                         swipeLayout.setRefreshing(true);
                         mArrayAdapter.clear();
                         server.getFriends();
                         swipeLayout.setRefreshing(false);
                     }
                 }, 500);
             }
         });
     }

     public void CreateNewTable(){
         sqLiteHelper = new SQLiteHelper(this,"user_logs.db",null,1);    //新建.db文件
         sqLiteDatabase = sqLiteHelper.getWritableDatabase();
         TalkLogs talklog = new TalkLogs(user.UserName_);                //获取新建表的语句
         sqLiteDatabase.execSQL(talklog.returnAString());                //新建表
         Toast.makeText(friend.this, user.UserName_+" Create success",Toast.LENGTH_SHORT).show();
         Log.e(user.UserName_, "success!!!");
         //sqLiteDatabase.close();
         }
     public  Handler mhandler = new Handler()
     {
         public void handleMessage(android.os.Message message)
         {
             switch (message.what) {
                 case 0:
                     Bundle bundle = (Bundle)message.obj;            //桌面Toast的解决方法
                     String s1 = bundle.getString("name");
                     String s2 = bundle.getString("text");
                     showCustomToast(s1,s2);
                     break;
                 case 1: {
                     String temp = (String) message.obj;
                     friend.mArrayAdapter.add(temp);
                     break;
                 }
             }
         }
     };
     protected void onDestroy()
     {
         super.onDestroy();
         connect.closeConnection();
         Intent stopintent=new Intent(this, Myserver.class);
         stopService(stopintent);
     }
     private long exitTime = 0;
     @Override
     public boolean onKeyDown(int keyCode, KeyEvent event) {
         if(keyCode == KeyEvent.KEYCODE_BACK && event.getAction() == KeyEvent.ACTION_DOWN){
             Intent home = new Intent(Intent.ACTION_MAIN);
             home.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
             home.addCategory(Intent.CATEGORY_HOME);
             startActivity(home);
             return true;
         }
         return super.onKeyDown(keyCode, event);
     }
     public void showCustomToast(String s1, String s2) {//新建显示TOAST
         // 通用的布局加载器
         LayoutInflater inflater = getLayoutInflater();
         // 加载根容器，方便用于后面的view的定位
         View layout = inflater.inflate(R.layout.toast_view, (ViewGroup)findViewById(R.id.llToast));
         // 设置图片的源文件
         ImageView image = (ImageView) layout.findViewById(R.id.tvImageToast);
         image.setImageResource(R.drawable.toast_image);
         // 设置title及内容
         TextView title = (TextView) layout.findViewById(R.id.tvTitleToast);
         title.setText(s1);
         TextView text = (TextView) layout.findViewById(R.id.tvTextToast);
         text.setText(s2);
         Toast tempToast = new Toast(getApplicationContext());
         // 设置位置
         tempToast.setGravity(Gravity.CENTER_HORIZONTAL | Gravity.CENTER, 0, 0);
         // 设置显示时间
         tempToast.setDuration(Toast.LENGTH_SHORT);
         tempToast.setView(layout);
         tempToast.show();
     }
 }

friend活动

　  3.工具类进行了很大的修改，详细讲解：

 package com.lfk.webim;

 import android.app.ActivityManager;
 import android.content.ComponentName;
 import android.content.ContentValues;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.database.Cursor;
 import android.database.sqlite.SQLiteDatabase;
 import android.os.Bundle;
 import android.os.Handler;
 import android.util.Log;

 import com.lfk.webim.appli.user;
 import com.lfk.webim.server.connect;

 import org.jivesoftware.smack.Chat;
 import org.jivesoftware.smack.ChatManager;
 import org.jivesoftware.smack.ChatManagerListener;
 import org.jivesoftware.smack.MessageListener;
 import org.jivesoftware.smack.Roster;
 import org.jivesoftware.smack.RosterEntry;
 import org.jivesoftware.smack.RosterGroup;
 import org.jivesoftware.smack.packet.Message;

 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;

 public class ClientConServer {
     private Context context;
     private Handler handlers;
     private SQLiteDatabase sqLiteDatabase;

     ClientConServer(Context context,Handler handler,SQLiteDatabase sqLiteDatabase){
         this.context = context;
         this.handlers = handler;
         this.sqLiteDatabase = sqLiteDatabase;
         getFriends();
         getChat();
         System.out.print(isAppForground(context));
     }
     //这里收到消息
     private  Handler handler = new Handler(){
         public void handleMessage(android.os.Message m) {
             Message msg = new Message();
             msg = (Message) m.obj;
             //把从服务器获得的消息通过发送
             String[] message = new String[]{ msg.getFrom(), msg.getBody()};
             System.out.println("==========收到消息  From==========="+ message[0]);
             System.out.println("==========收到消息  Body===========" + message[1]);
             String s = msg.getFrom();
             String s1 = s.split("@")[0];
             ContentValues values = new ContentValues();
             if(message[1]!=null) {
                 if (user.UserName.equals(message[0])) {
                     values.put("with_id",s1);
                     values.put("talklogs", "ME: " + msg.getBody());
                     values.put("_ifread",0);
                     Log.e("存入：", "ME: " + msg.getBody());
                     sqLiteDatabase.insert("\"" + user.UserName_ + "\"", null, values);
                     values.clear();
                 } else {
                     values.put("with_id", s1);
                     values.put("talklogs", s1 + "说：" + msg.getBody());
                     values.put("_ifread", 0);
                     Log.e("存入：", s1 + "说：" + msg.getBody());
                     sqLiteDatabase.insert("\"" + user.UserName_ + "\"", null, values);
                     addUnread(values,s1);
                 }
                 if(isHome(context)){
                     sendToast(msg,s1);
                 }
             }
         }
     };
     public void getFriends(){
             //获取用户组、成员信息
             System.out.println("--------find start----------");
             Roster roster = connect.con.getRoster();
             Collection<RosterGroup> entriesGroup = roster.getGroups();
             System.out.println("team：" + entriesGroup.size());
             for(RosterGroup group: entriesGroup){
                 Collection<RosterEntry> entries = group.getEntries();
                 int temp=group.getEntryCount();
                 System.out.println("--------groupnumber--------" + "\n" + temp);
                 System.out.println("--------groupName----------" + "\n" + group.getName());
                 for (RosterEntry entry : entries) {
                     System.out.println("name："+entry.getName());
                     String string2 = entry.getName();
                     android.os.Message message_list = new android.os.Message();
                     message_list.obj = string2;
                     message_list.what = 1;
                     handlers.sendMessage(message_list);
                 }
             }
             System.out.println("--------find end--------");
     }
     private void addUnread(ContentValues values,String s1){
         if (isAppForground(context)&& s1.equals(user.FromName_)) {
             Cursor cursor = sqLiteDatabase.rawQuery("Select * From "+user.UserName_+" where with_id ="+"\""+user.FromName_+"\""+"And _ifread ="+0,null);
             if(cursor.moveToFirst()) {
                 do {
                     String talklogs = cursor.getString(cursor.getColumnIndex("talklogs"));
                     useractivity.mConversationArrayAdapter.add(talklogs);
                     Log.e(talklogs, "================");
                 }while (cursor.moveToNext());
             }
             if(!isAppForground(context))
                 useractivity.mConversationArrayAdapter.notifyDataSetChanged();
             cursor.close();
         }
         values.clear();
     }
     private void sendToast(Message msg,String s1){
         android.os.Message message_send = new android.os.Message();
         Bundle bundle = new Bundle();
         bundle.putString("name",s1);
         bundle.putString("text",msg.getBody());
         message_send.obj = bundle;
         message_send.what = 0;
         handlers.sendMessage(message_send);
     }
     private void getChat(){
         //在登陆以后应该建立一个监听消息的监听器，用来监听收到的消息：
         ChatManager chatManager = connect.con.getChatManager();
         chatManager.addChatListener(new MyChatManagerListener());
     }
     /** message listener*/
      class MyChatManagerListener implements ChatManagerListener {
         public void chatCreated(Chat chat, boolean arg1) {
             chat.addMessageListener(new MessageListener(){
                 @Override
                 public void processMessage(Chat chat, Message msg) {
                     android.os.Message m = handler.obtainMessage();
                     m.obj = msg;
                     m.sendToTarget();
                 }
             });
         }
     }
     public boolean isAppForground(Context mContext) {
         ActivityManager am = (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE);
         List<ActivityManager.RunningTaskInfo> tasks = am.getRunningTasks(1);
         if (!tasks.isEmpty()) {
             ComponentName topActivity = tasks.get(0).topActivity;
             if (!topActivity.getPackageName().equals(mContext.getPackageName())) {
                 return false;
             }
         }
         return true;
     }
     public boolean isHome(Context mContext){
         ActivityManager mActivityManager = (ActivityManager)mContext.getSystemService(Context.ACTIVITY_SERVICE);
         List<ActivityManager.RunningTaskInfo> rti = mActivityManager.getRunningTasks(1);
         return getHomes(mContext).contains(rti.get(0).topActivity.getPackageName());
         }
     /**
      * 获得属于桌面的应用的应用包名称
      * @return 返回包含所有包名的字符串列表
      */
     private List<String> getHomes(Context mContext) {
         List<String> names = new ArrayList<String>();
         PackageManager packageManager = mContext.getPackageManager();
         //属性
         Intent intent = new Intent(Intent.ACTION_MAIN);
         intent.addCategory(Intent.CATEGORY_HOME);
         List<ResolveInfo> resolveInfo = packageManager.queryIntentActivities(intent,
                 PackageManager.MATCH_DEFAULT_ONLY);
         for(ResolveInfo ri : resolveInfo){
             names.add(ri.activityInfo.packageName);
             System.out.println(ri.activityInfo.packageName);
         }
         return names;
     }
 }

工具类

 ClientConServer(Context context,Handler handler,SQLiteDatabase sqLiteDatabase){
         this.context = context;
         this.handlers = handler;
         this.sqLiteDatabase = sqLiteDatabase;
         getFriends();
         getChat();
         System.out.print(isAppForground(context));
     }

　　3.1构造函数，用于实例化。

  private void addUnread(ContentValues values,String s1){
         if (isAppForground(context)&& s1.equals(user.FromName_)) {
             Cursor cursor = sqLiteDatabase.rawQuery("Select * From "+user.UserName_+" where with_id ="+"\""+user.FromName_+"\""+"And _ifread ="+0,null);
             if(cursor.moveToFirst()) {
                 do {
                     String talklogs = cursor.getString(cursor.getColumnIndex("talklogs"));
                     useractivity.mConversationArrayAdapter.add(talklogs);
                     Log.e(talklogs, "================");
                 }while (cursor.moveToNext());
             }
             if(!isAppForground(context))
                 useractivity.mConversationArrayAdapter.notifyDataSetChanged();
             cursor.close();
         }
         values.clear();
     }

　　3.2搜索所有与我聊天的人的记录，并且为未读。

public boolean isAppForground(Context mContext) {
        ActivityManager am = (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE);
        List<ActivityManager.RunningTaskInfo> tasks = am.getRunningTasks(1);
        if (!tasks.isEmpty()) {
            ComponentName topActivity = tasks.get(0).topActivity;
            if (!topActivity.getPackageName().equals(mContext.getPackageName())) {
                return false;
            }
        }
        return true;
    }
    public boolean isHome(Context mContext){
        ActivityManager mActivityManager = (ActivityManager)mContext.getSystemService(Context.ACTIVITY_SERVICE);
        List<ActivityManager.RunningTaskInfo> rti = mActivityManager.getRunningTasks(1);
        return getHomes(mContext).contains(rti.get(0).topActivity.getPackageName());
        }
    /**
     * 获得属于桌面的应用的应用包名称
     * @return 返回包含所有包名的字符串列表
     */
    private List<String> getHomes(Context mContext) {
        List<String> names = new ArrayList<String>();
        PackageManager packageManager = mContext.getPackageManager();
        //属性
        Intent intent = new Intent(Intent.ACTION_MAIN);
        intent.addCategory(Intent.CATEGORY_HOME);
        List<ResolveInfo> resolveInfo = packageManager.queryIntentActivities(intent,
                PackageManager.MATCH_DEFAULT_ONLY);
        for(ResolveInfo ri : resolveInfo){
            names.add(ri.activityInfo.packageName);
            System.out.println(ri.activityInfo.packageName);
        }
        return names;
    }
}

　　3.3判断现在栈顶的活动是什么？还有是否在桌面。

　　3.4消息的分发机制

　　这里需要讲解一下我的聊天机制，ChatListener接收数据，然后存入数据库，如果现在的栈顶活动为朋友界面（有一个判断），就默默的存进去，如果是聊天界面就把所有数据库里的取出来，把所有的消息都设为已读（_ifread=1），放在listview里，

然后如果有新消息的话,就用3.1的方法把所有的_ifread的消息取出来，即时的显示在listview里面，如果现在为桌面，就把东西存入然后再Toast出来。

　　所以handler就是重要的消息分发机制：

  private  Handler handler = new Handler(){
         public void handleMessage(android.os.Message m) {
             Message msg = new Message();
             msg = (Message) m.obj;
             //把从服务器获得的消息通过发送
             String[] message = new String[]{ msg.getFrom(), msg.getBody()};
             System.out.println("==========收到消息  From==========="+ message[0]);
             System.out.println("==========收到消息  Body===========" + message[1]);
             String s = msg.getFrom();
             String s1 = s.split("@")[0];
             ContentValues values = new ContentValues();
             if(message[1]!=null) {
                 if (user.UserName.equals(message[0])) {
                     values.put("with_id",s1);
                     values.put("talklogs", "ME: " + msg.getBody());
                     values.put("_ifread",0);
                     Log.e("存入：", "ME: " + msg.getBody());
                     sqLiteDatabase.insert("\"" + user.UserName_ + "\"", null, values);
                     values.clear();
                 } else {
                     values.put("with_id", s1);
                     values.put("talklogs", s1 + "说：" + msg.getBody());
                     values.put("_ifread", 0);
                     Log.e("存入：", s1 + "说：" + msg.getBody());
                     sqLiteDatabase.insert("\"" + user.UserName_ + "\"", null, values);
                     addUnread(values,s1);
                 }
                 if(isHome(context)){
                     sendToast(msg,s1);
                 }
             }
         }
     };

　　4.改进后的聊天界面：

 package com.lfk.webim;

 import android.content.ContentValues;
 import android.database.Cursor;
 import android.database.sqlite.SQLiteDatabase;
 import android.os.Bundle;
 import android.os.Environment;
 import android.os.Handler;
 import android.util.Log;
 import android.view.View;
 import android.widget.ArrayAdapter;
 import android.widget.Button;
 import android.widget.EditText;
 import android.widget.ListView;
 import android.widget.TextView;
 import android.widget.Toast;

 import com.lfk.webim.appli.BaseActivity;
 import com.lfk.webim.appli.user;
 import com.lfk.webim.server.connect;

 import org.jivesoftware.smack.Chat;
 import org.jivesoftware.smack.ChatManager;
 import org.jivesoftware.smack.MessageListener;
 import org.jivesoftware.smack.XMPPConnection;
 import org.jivesoftware.smack.XMPPException;
 import org.jivesoftware.smack.packet.Message;

 import java.io.File;

 public class useractivity extends BaseActivity {
     private ListView listView;
     public static ArrayAdapter<String> mConversationArrayAdapter;
     private ClientConServer server;
     private SQLiteDatabase database;
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.useractivity);

         getActionBar().setDisplayHomeAsUpEnabled(true);

         //server = (ClientConServer)getIntent().getSerializableExtra("ClientConServer");

         listView = (ListView) findViewById(R.id.in);
         TextView textView = (TextView) findViewById(R.id.username);
         textView.setText("Talk with "+user.FromName_);

         mConversationArrayAdapter = new ArrayAdapter<String>(this, R.layout.message);
         listView.setAdapter(mConversationArrayAdapter);

         OpenDatabase();

         //server = new ClientConServer(mhandle);

         Button button = (Button)findViewById(R.id.button_send);

         button.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
                 EditText input = (EditText) findViewById(R.id.edit_text_out);
                 final String content = input.getText().toString();
                 String string = "ME" + ":" + content;
                 android.os.Message mm = new android.os.Message();
                 mm.what = 0;
                 mm.obj = content;
                 try {
                     XMPPConnection connection = connect.getConnection();
                     ChatManager cm = connection.getChatManager();
                     Chat chat = cm.createChat(user.FromName, new MessageListener() {
                         @Override
                         public void processMessage(Chat chat, Message msg) {
                             msg.setBody(content);
                             Log.i("---", msg.getFrom() + "说：" + msg.getBody());
                             //添加消息到聊天窗口
                         }
                     });
                     if (content.equals("")) {
                         mm.what = 1;
                         mhandle.handleMessage(mm);
                     } else {
                         mhandle.handleMessage(mm);
                         chat.sendMessage(content);
                     }
                     input.setText("");
                 } catch (XMPPException e) {
                     e.printStackTrace();
                 }
             }

         });
     }
     public Handler mhandle = new Handler() {
         public void handleMessage(android.os.Message m) {
             switch (m.what) {
                 case 1:
                     Toast.makeText(useractivity.this, "不能发送空消息", Toast.LENGTH_SHORT).show();
                     break;
                 case 0:
                     String respond = (String) m.obj;
                     Log.i("---", respond);
                     ContentValues values = new ContentValues();
                     values.put("with_id",user.FromName_);
                     values.put("talklogs","ME: "+respond);
                     values.put("_ifread",0);
                     Log.e("存入：", "ME: " + respond);
                     database.insert("\"" + user.UserName_ + "\"", null, values);
                     values.clear();
                     mConversationArrayAdapter.add("ME: "+respond);
                     mConversationArrayAdapter.notifyDataSetChanged();
                     break;
                 case 2:
                     //addTheListview();
                     break;
             }
         }
     };
     private void OpenDatabase(){
         String DB_NAME = "user_logs.db"; //保存的数据库文件名
         String PACKAGE_NAME = "com.lfk.webim";// 应用的包名
         String DB_PATH = "/data"
                 + Environment.getDataDirectory().getAbsolutePath() +"/"
                 + PACKAGE_NAME+ "/databases"; // 在手机里存放数据库的位置
         File myDataPath = new File(DB_PATH);
         String dbfile = myDataPath+"/"+DB_NAME;
         database = SQLiteDatabase.openOrCreateDatabase(dbfile, null);
         if(!checkColumnExist1(database,user.UserName_,user.FromName_)){
             Cursor cursor = database.rawQuery("Select * From "+user.UserName_+" where with_id ="+"\""+user.FromName_+"\"",null);
             if(cursor.moveToFirst()) {
                 do {
                     String talklogs = cursor.getString(cursor.getColumnIndex("talklogs"));
                     mConversationArrayAdapter.add(talklogs);
                     Log.e(talklogs, "================");
                 }while (cursor.moveToNext());
             }
             database.execSQL("UPDATE "+user.UserName_+" SET _ifread = 1 "+"Where with_id ="+"\""+user.FromName_+"\"");
             cursor.close();
             //database.close();
         }
     }
     public static boolean checkColumnExist1(SQLiteDatabase db, String tableName, String columnName) {
         boolean result = false ;
         Cursor cursor = null ;
         try{
             //查询一行
             cursor = db.rawQuery( "SELECT * FROM " + tableName + " LIMIT 0", null );
             result = cursor != null && cursor.getColumnIndex(columnName) != -1 ;
         }catch (Exception e){
             Log.e("","checkColumnExists1..." + e.getMessage()) ;
         }finally{
             if(null != cursor && !cursor.isClosed()){
                 cursor.close() ;
             }
         }
         return result ;
     }
 }

聊天活动

     private void OpenDatabase(){
         String DB_NAME = "user_logs.db"; //保存的数据库文件名
         String PACKAGE_NAME = "com.lfk.webim";// 应用的包名
         String DB_PATH = "/data"
                 + Environment.getDataDirectory().getAbsolutePath() +"/"
                 + PACKAGE_NAME+ "/databases"; // 在手机里存放数据库的位置
         File myDataPath = new File(DB_PATH);
         String dbfile = myDataPath+"/"+DB_NAME;
         database = SQLiteDatabase.openOrCreateDatabase(dbfile, null);
         if(!checkColumnExist1(database,user.UserName_,user.FromName_)){
             Cursor cursor = database.rawQuery("Select * From "+user.UserName_+" where with_id ="+"\""+user.FromName_+"\"",null);
             if(cursor.moveToFirst()) {
                 do {
                     String talklogs = cursor.getString(cursor.getColumnIndex("talklogs"));
                     mConversationArrayAdapter.add(talklogs);
                     Log.e(talklogs, "================");
                 }while (cursor.moveToNext());
             }
             database.execSQL("UPDATE "+user.UserName_+" SET _ifread = 1 "+"Where with_id ="+"\""+user.FromName_+"\"");
             cursor.close();
             //database.close();
         }
     }

　　每次进入都先打开数据库，并且把所有的聊天对应的人的数据库信息取出来，然后把所有的已读标志设为1；

　　

     public static boolean checkColumnExist1(SQLiteDatabase db, String tableName, String columnName) {
         boolean result = false ;
         Cursor cursor = null ;
         try{
             //查询一行
             cursor = db.rawQuery( "SELECT * FROM " + tableName + " LIMIT 0", null );
             result = cursor != null && cursor.getColumnIndex(columnName) != -1 ;
         }catch (Exception e){
             Log.e("","checkColumnExists1..." + e.getMessage()) ;
         }finally{
             if(null != cursor && !cursor.isClosed()){
                 cursor.close() ;
             }
         }
         return result ;
     }

　　这里用到了一个方法，用来判断表里有没有你的这个字段，如果没有就不用添加到listview里，否则你没和他聊过会崩！！

     public Handler mhandle = new Handler() {
         public void handleMessage(android.os.Message m) {
             switch (m.what) {
                 case 1:
                     Toast.makeText(useractivity.this, "不能发送空消息", Toast.LENGTH_SHORT).show();
                     break;
                 case 0:
                     String respond = (String) m.obj;
                     Log.i("---", respond);
                     ContentValues values = new ContentValues();
                     values.put("with_id",user.FromName_);
                     values.put("talklogs","ME: "+respond);
                     values.put("_ifread",0);
                     Log.e("存入：", "ME: " + respond);
                     database.insert("\"" + user.UserName_ + "\"", null, values);
                     values.clear();
                     mConversationArrayAdapter.add("ME: "+respond);
                     mConversationArrayAdapter.notifyDataSetChanged();
                     break;
                 case 2:
                     //addTheListview();
                     break;
             }
         }
     };

　　在自己发送消息的时候，存入数据库，然后添加到listview里面。

　　3.桌面显示的Toast:

 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:id="@+id/llToast"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
     android:background="#ffffffff"
     android:orientation="vertical" >

     <TextView
         android:id="@+id/tvTitleToast"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_margin="1dip"
         android:background="#bb000000"
         android:gravity="center"
         android:text="Title"
         android:textColor="#ffffffff" />

     <LinearLayout
         android:id="@+id/llToastContent"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_marginBottom="1dip"
         android:layout_marginLeft="1dip"
         android:layout_marginRight="1dip"
         android:background="#44000000"
         android:orientation="vertical"
         android:padding="15dip" >

         <ImageView
             android:id="@+id/tvImageToast"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:layout_gravity="center"
             android:contentDescription="@string/hello_world"
             android:src="@drawable/toast_image" />

         <TextView
             android:id="@+id/tvTextToast"
             android:layout_width="128dp"
             android:layout_height="wrap_content"
             android:gravity="center"
             android:paddingLeft="10dip"
             android:paddingRight="10dip"
             android:singleLine="false"
             android:text="自定义显示语句"
             android:textColor="#ff000000" />
     </LinearLayout>

 </LinearLayout>

　　1.添加一个toast的布局文件，写出来的样子是这样的：　　

　　　　

　　2.friend里面添加一个方法进行处理：

     public void showCustomToast(String s1, String s2) {//新建显示TOAST
         // 通用的布局加载器
         LayoutInflater inflater = getLayoutInflater();
         // 加载根容器，方便用于后面的view的定位
         View layout = inflater.inflate(R.layout.toast_view, (ViewGroup)findViewById(R.id.llToast));
         // 设置图片的源文件
         ImageView image = (ImageView) layout.findViewById(R.id.tvImageToast);
         image.setImageResource(R.drawable.toast_image);
         // 设置title及内容
         TextView title = (TextView) layout.findViewById(R.id.tvTitleToast);
         title.setText(s1);
         TextView text = (TextView) layout.findViewById(R.id.tvTextToast);
         text.setText(s2);
         Toast tempToast = new Toast(getApplicationContext());
         // 设置位置
         tempToast.setGravity(Gravity.CENTER_HORIZONTAL | Gravity.CENTER, 0, 0);
         // 设置显示时间
         tempToast.setDuration(Toast.LENGTH_SHORT);
         tempToast.setView(layout);
         tempToast.show();
     }
 }

　　3.显示：

　　　刚才在friend里面我们对工具类进行了实例化，传入了handler，就是要在工具类用handler回调，用friend的handler进行处理：

　　

 if(isHome(context)){
                     sendToast(msg,s1);
                 }

　　如果在桌面：

 private void sendToast(Message msg,String s1){
         android.os.Message message_send = new android.os.Message();
         Bundle bundle = new Bundle();
         bundle.putString("name",s1);
         bundle.putString("text",msg.getBody());
         message_send.obj = bundle;
         message_send.what = 0;
         handlers.sendMessage(message_send);
     }

　　打包名字，信息发到friend的handler里去。

　　

  public  Handler mhandler = new Handler()
     {
         public void handleMessage(android.os.Message message)
         {
             switch (message.what) {
                 case 0:
                     Bundle bundle = (Bundle)message.obj;            //桌面Toast的解决方法
                     String s1 = bundle.getString("name");
                     String s2 = bundle.getString("text");
                     showCustomToast(s1,s2);
                     break;
                 case 1: {
                     String temp = (String) message.obj;
                     friend.mArrayAdapter.add(temp);
                     break;
                 }
             }
         }
     };

　　friend的Handler里处理一下，就能显示出来了。

　　这一次就说这么多吧，整个Demo已经能像正常的IM应用一样使用了，还有一些自己的修改方法，在下一篇的后续里会增加加好友啊，

加组，转入server里的一系列方法，敬请期待！

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