Androidのシンプルなクライアントサーバー（インターネットメッセンジャー）

CREATE TABLE `chat` ( `_id` int(11) NOT NULL AUTO_INCREMENT, `author` text CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL, `client` text CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL, `data` bigint(20) NOT NULL, `text` text CHARACTER SET utf8 COLLATE utf8_unicode_ci NOT NULL, PRIMARY KEY (`_id`) ) 

 <?php //   utf-8 ! // ----------------------------------------------------------         $mysql_host = "localhost"; // sql  $mysql_user = "l29340eb_chat"; //  $mysql_password = "123456789"; //  $mysql_database = "l29340eb_chat"; //    chat // ----------------------------------------------------------       //  ...chat.php?action=select //----------------------------------------------------------- //  action  : // select -    chat  JSON    // insert -      chat,    4  : // / //        ,      // delete -      chat -      // -------------------------------------------   action if (isset($_GET["action"])) { $action = $_GET['action']; } // -------------------------------------------  action=insert    author|client|text if (isset($_GET["author"])) { $author = $_GET['author']; } if (isset($_GET["client"])) { $client = $_GET['client']; } if (isset($_GET["text"])) { $text = $_GET['text']; } // -------------------------------------------  action=select    data -       if (isset($_GET["data"])) { $data = $_GET['data']; } mysql_connect($mysql_host, $mysql_user, $mysql_password); //    SQL mysql_select_db($mysql_database); //      mysql_set_charset('utf8'); //  // ------------------------------------------------------------      if($action == select){ //   SELECT if($data == null){ //    chat         JSON $q=mysql_query("SELECT * FROM chat"); }else{ //    chat          JSON $q=mysql_query("SELECT * FROM chat WHERE data > $data"); } while($e=mysql_fetch_assoc($q)) $output[]=$e; print(json_encode($output)); } if($action == insert && $author != null && $client != null && $text != null){ //   INSERT      //  =      ! $current_time = round(microtime(1) * 1000); //    : // chat.php?action=insert&author=author&client=client&text=text //      mysql_query("INSERT INTO `chat`(`author`,`client`,`data`,`text`) VALUES ('$author','$client','$current_time','$text')"); } if($action == delete){ //   DELETE //     mysql_query("TRUNCATE TABLE `chat`"); } mysql_close(); ?> 

 <?php //  utf-8 ! // --------------------------------------------------------------------------   $mysql_host = "localhost"; // sql  $mysql_user = "l29340eb_chat"; //  $mysql_password = "123456789"; //  $mysql_database = "l29340eb_chat"; //    chat // --------------------------------------------------------------------------    if (!mysql_connect($mysql_host, $mysql_user, $mysql_password)){ echo "<h2> !</h2>"; exit; }else{ // --------------------------------------------------------------------------    echo "<h2> !</h2>"; mysql_select_db($mysql_database); mysql_set_charset('utf8'); // --------------------------------------------------------------------------  JSON $q=mysql_query("SELECT * FROM chat"); echo "<h3>Json :</h3>"; //  json while($e=mysql_fetch_assoc($q)) $output[]=$e; print(json_encode($output)); // --------------------------------------------------------------------------   $q=mysql_query("SELECT * FROM chat"); echo "<h3> :</h3>"; echo "<table border=\"1\" width=\"100%\" bgcolor=\"#999999\">"; echo "<tr><td>_id</td><td>author</td>"; echo "<td>client</td><td>data</td><td>text</td></tr>"; for ($c=0; $c<mysql_num_rows($q); $c++){ $f = mysql_fetch_array($q); echo "<tr><td>$f[_id]</td><td>$f[author]</td><td>$f[client]</td><td>$f[data]</td><td>$f[text]</td></tr>"; } echo "</tr></table>"; } mysql_close(); // --------------------------------------------------------------------------     ?> 

 package by.andreidanilevich.temp_chat; import java.io.BufferedReader; import java.io.InputStream; import java.io.InputStreamReader; import java.net.HttpURLConnection; import java.net.URL; import org.json.JSONArray; import org.json.JSONObject; import android.app.Notification; import android.app.PendingIntent; import android.app.Service; import android.content.ContentValues; import android.content.Context; import android.content.Intent; import android.database.Cursor; import android.database.sqlite.SQLiteDatabase; import android.graphics.BitmapFactory; import android.os.IBinder; import android.util.Log; public class FoneService extends Service { //   (url   ) //  http://l29340eb.bget.ru String server_name = "http://l29340eb.bget.ru"; SQLiteDatabase chatDBlocal; HttpURLConnection conn; Cursor cursor; Thread thr; ContentValues new_mess; Long last_time; //     ,      //   ,     @Override public IBinder onBind(Intent intent) { return null; } public void onStart(Intent intent, int startId) { Log.i("chat", "+ FoneService -  "); chatDBlocal = openOrCreateDatabase("chatDBlocal.db", Context.MODE_PRIVATE, null); chatDBlocal .execSQL("CREATE TABLE IF NOT EXISTS chat (_id integer primary key autoincrement, author, client, data, text)"); //    notification //     "" //       Intent iN = new Intent(getApplicationContext(), MainActivity.class); intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP); PendingIntent pI = PendingIntent.getActivity(getApplicationContext(), 0, iN, PendingIntent.FLAG_CANCEL_CURRENT); Notification.Builder bI = new Notification.Builder( getApplicationContext()); bI.setContentIntent(pI) .setSmallIcon(R.drawable.ic_launcher) .setLargeIcon( BitmapFactory.decodeResource(getApplicationContext() .getResources(), R.drawable.ic_launcher)) .setAutoCancel(true) .setContentTitle(getResources().getString(R.string.app_name)) .setContentText("..."); Notification notification = bI.build(); startForeground(101, notification); startLoop(); } //  ,     //        // . //    -     // ListView  ChatActivity private void startLoop() { thr = new Thread(new Runnable() { // ansver =    // lnk =    String ansver, lnk; public void run() { while (true) { //    //        cursor = chatDBlocal.rawQuery( "SELECT * FROM chat ORDER BY data", null); //  -   -   //       if (cursor.moveToLast()) { last_time = cursor.getLong(cursor .getColumnIndex("data")); lnk = server_name + "/chat.php?action=select&data=" + last_time.toString(); //      -   //     } else { lnk = server_name + "/chat.php?action=select"; } cursor.close(); //   ----------------------------------> try { Log.i("chat", "+ FoneService ---------------  "); conn = (HttpURLConnection) new URL(lnk) .openConnection(); conn.setReadTimeout(10000); conn.setConnectTimeout(15000); conn.setRequestMethod("POST"); conn.setRequestProperty("User-Agent", "Mozilla/5.0"); conn.setDoInput(true); conn.connect(); } catch (Exception e) { Log.i("chat", "+ FoneService : " + e.getMessage()); } //   ----------------------------------> try { InputStream is = conn.getInputStream(); BufferedReader br = new BufferedReader( new InputStreamReader(is, "UTF-8")); StringBuilder sb = new StringBuilder(); String bfr_st = null; while ((bfr_st = br.readLine()) != null) { sb.append(bfr_st); } Log.i("chat", "+ FoneService -   :\n" + sb.toString()); //     string //     ,    "]" //  , .. json     //       -   ansver = sb.toString(); ansver = ansver.substring(0, ansver.indexOf("]") + 1); is.close(); //   br.close(); //   } catch (Exception e) { Log.i("chat", "+ FoneService : " + e.getMessage()); } finally { conn.disconnect(); Log.i("chat", "+ FoneService ---------------  "); } //     ----------------------------------> if (ansver != null && !ansver.trim().equals("")) { Log.i("chat", "+ FoneService ----------   JSON:"); try { //    JSON  JSONArray ja = new JSONArray(ansver); JSONObject jo; Integer i = 0; while (i < ja.length()) { //  JSON   jo = ja.getJSONObject(i); Log.i("chat", "=================>>> " + jo.getString("author") + " | " + jo.getString("client") + " | " + jo.getLong("data") + " | " + jo.getString("text")); //    new_mess = new ContentValues(); new_mess.put("author", jo.getString("author")); new_mess.put("client", jo.getString("client")); new_mess.put("data", jo.getLong("data")); new_mess.put("text", jo.getString("text")); //      chatDBlocal.insert("chat", null, new_mess); new_mess.clear(); i++; //    ChatActivity //    -   ListView sendBroadcast(new Intent( "by.andreidanilevich.action.UPDATE_ListView")); } } catch (Exception e) { //       JSON Log.i("chat", "+ FoneService ----------   :\n" + e.getMessage()); } } else { //     Log.i("chat", "+ FoneService ----------    JSON!"); } try { Thread.sleep(15000); } catch (Exception e) { Log.i("chat", "+ FoneService -  : " + e.getMessage()); } } } }); thr.setDaemon(true); thr.start(); } } 

 package by.andreidanilevich.temp_chat; import java.net.HttpURLConnection; import java.net.URL; import java.net.URLEncoder; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.HashMap; import android.annotation.SuppressLint; import android.app.Activity; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.database.Cursor; import android.database.sqlite.SQLiteDatabase; import android.os.AsyncTask; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.ListView; import android.widget.SimpleAdapter; import android.widget.Toast; public class ChatActivity extends Activity { //   (url   ) //  http://l29340eb.bget.ru String server_name = "http://l29340eb.bget.ru"; ListView lv; //   EditText et; Button bt; SQLiteDatabase chatDBlocal; String author, client; INSERTtoChat insert_to_chat; //       UpdateReceiver upd_res; //         - //  ListView @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.chat); //  2        : // author -      // client -    Intent intent = getIntent(); author = intent.getStringExtra("author"); client = intent.getStringExtra("client"); Log.i("chat", "+ ChatActivity -  author = " + author + " | client = " + client); lv = (ListView) findViewById(R.id.lv); et = (EditText) findViewById(R.id.et); bt = (Button) findViewById(R.id.bt); chatDBlocal = openOrCreateDatabase("chatDBlocal.db", Context.MODE_PRIVATE, null); chatDBlocal .execSQL("CREATE TABLE IF NOT EXISTS chat (_id integer primary key autoincrement, author, client, data, text)"); //      upd_res = new UpdateReceiver(); registerReceiver(upd_res, new IntentFilter( "by.andreidanilevich.action.UPDATE_ListView")); create_lv(); } //  lv =     lv    @SuppressLint("SimpleDateFormat") public void create_lv() { Cursor cursor = chatDBlocal.rawQuery( "SELECT * FROM chat WHERE author = '" + author + "' OR author = '" + client + "' ORDER BY data", null); if (cursor.moveToFirst()) { //       //    //  ,  hashmap     // cursor ArrayList<HashMap<String, Object>> mList = new ArrayList<HashMap<String, Object>>(); HashMap<String, Object> hm; do { //   !!! //    =  //    =  if (cursor.getString(cursor.getColumnIndex("author")).equals( author) && cursor.getString(cursor.getColumnIndex("client")) .equals(client)) { hm = new HashMap<>(); hm.put("author", author); hm.put("client", ""); hm.put("list_client", ""); hm.put("list_client_time", ""); hm.put("list_author", cursor.getString(cursor.getColumnIndex("text"))); hm.put("list_author_time", new SimpleDateFormat( "HH:mm - dd.MM.yyyy").format(new Date(cursor .getLong(cursor.getColumnIndex("data"))))); mList.add(hm); } //   !!!!!!! //    =  //     =  if (cursor.getString(cursor.getColumnIndex("author")).equals( client) && cursor.getString(cursor.getColumnIndex("client")) .equals(author)) { hm = new HashMap<>(); hm.put("author", ""); hm.put("client", client); hm.put("list_author", ""); hm.put("list_author_time", ""); hm.put("list_client", cursor.getString(cursor.getColumnIndex("text"))); hm.put("list_client_time", new SimpleDateFormat( "HH:mm - dd.MM.yyyy").format(new Date(cursor .getLong(cursor.getColumnIndex("data"))))); mList.add(hm); } } while (cursor.moveToNext()); //  lv SimpleAdapter adapter = new SimpleAdapter(getApplicationContext(), mList, R.layout.list, new String[] { "list_author", "list_author_time", "list_client", "list_client_time", "author", "client" }, new int[] { R.id.list_author, R.id.list_author_time, R.id.list_client, R.id.list_client_time, R.id.author, R.id.client }); lv.setAdapter(adapter); cursor.close(); } Log.i("chat", "+ ChatActivity ========================   "); } public void send(View v) { //     //     if (!et.getText().toString().trim().equals("")) { //    bt.setEnabled(false); //    - ! insert_to_chat = new INSERTtoChat(); insert_to_chat.execute(); } else { //    -    et.setText(""); } } //     private class INSERTtoChat extends AsyncTask<Void, Void, Integer> { HttpURLConnection conn; Integer res; protected Integer doInBackground(Void... params) { try { //       String post_url = server_name + "/chat.php?action=insert&author=" + URLEncoder.encode(author, "UTF-8") + "&client=" + URLEncoder.encode(client, "UTF-8") + "&text=" + URLEncoder.encode(et.getText().toString().trim(), "UTF-8"); Log.i("chat", "+ ChatActivity -     : " + et.getText().toString().trim()); URL url = new URL(post_url); conn = (HttpURLConnection) url.openConnection(); conn.setConnectTimeout(10000); //  10 conn.setRequestMethod("POST"); conn.setRequestProperty("User-Agent", "Mozilla/5.0"); conn.connect(); res = conn.getResponseCode(); Log.i("chat", "+ ChatActivity -   (200 -  ): " + res.toString()); } catch (Exception e) { Log.i("chat", "+ ChatActivity -  : " + e.getMessage()); } finally { //   conn.disconnect(); } return res; } protected void onPostExecute(Integer result) { try { if (result == 200) { Log.i("chat", "+ ChatActivity -   ."); //    et.setText(""); } } catch (Exception e) { Log.i("chat", "+ ChatActivity -   :\n" + e.getMessage()); Toast.makeText(getApplicationContext(), "  ", Toast.LENGTH_SHORT).show(); } finally { //   bt.setEnabled(true); } } } //      FoneService //   ,       -  ListView public class UpdateReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { Log.i("chat", "+ ChatActivity -    -  ListView"); create_lv(); } } //    public void onBackPressed() { Log.i("chat", "+ ChatActivity - "); unregisterReceiver(upd_res); finish(); } } 

 package by.andreidanilevich.temp_chat; import java.net.HttpURLConnection; import java.net.URL; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.database.sqlite.SQLiteDatabase; import android.os.AsyncTask; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.Spinner; import android.widget.Toast; public class MainActivity extends Activity { //   (url   ) //  http://l29340eb.bget.ru String server_name = "http://l29340eb.bget.ru"; Spinner spinner_author, spinner_client; String author, client; Button open_chat_btn, open_chat_reverce_btn, delete_server_chat; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Log.i("chat", "+ MainActivity -  "); open_chat_btn = (Button) findViewById(R.id.open_chat_btn); open_chat_reverce_btn = (Button) findViewById(R.id.open_chat_reverce_btn); delete_server_chat = (Button) findViewById(R.id.delete_server_chat); //  FoneService this.startService(new Intent(this, FoneService.class)); //  2         // 5   5   //   spinner_author = (Spinner) findViewById(R.id.spinner_author); spinner_client = (Spinner) findViewById(R.id.spinner_client); spinner_author.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, new String[] { "", "", "", "", "", "", "", "", "", "" })); spinner_client.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, new String[] { "", "", "", "", "", "", "", "", "", "" })); spinner_client.setSelection(5); open_chat_btn.setText(" : " + spinner_author.getSelectedItem().toString() + " > " + spinner_client.getSelectedItem().toString()); open_chat_reverce_btn.setText(" : " + spinner_client.getSelectedItem().toString() + " > " + spinner_author.getSelectedItem().toString()); spinner_author .setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { public void onItemSelected(AdapterView<?> parent, View itemSelected, int selectedItemPosition, long selectedId) { author = spinner_author.getSelectedItem().toString(); open_chat_btn.setText(" : " + spinner_author.getSelectedItem().toString() + " > " + spinner_client.getSelectedItem().toString()); open_chat_reverce_btn.setText(" : " + spinner_client.getSelectedItem().toString() + " > " + spinner_author.getSelectedItem().toString()); } public void onNothingSelected(AdapterView<?> parent) { } }); spinner_client .setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { public void onItemSelected(AdapterView<?> parent, View itemSelected, int selectedItemPosition, long selectedId) { client = spinner_client.getSelectedItem().toString(); open_chat_btn.setText(" : " + spinner_author.getSelectedItem().toString() + " > " + spinner_client.getSelectedItem().toString()); open_chat_reverce_btn.setText(" : " + spinner_client.getSelectedItem().toString() + " > " + spinner_author.getSelectedItem().toString()); } public void onNothingSelected(AdapterView<?> parent) { } }); } //        public void open_chat(View v) { //   if (author.equals(client)) { //      //    Toast.makeText(this, "author = client !", Toast.LENGTH_SHORT) .show(); } else { //    author > client Intent intent = new Intent(MainActivity.this, ChatActivity.class); intent.putExtra("author", author); intent.putExtra("client", client); startActivity(intent); } } //       ,   public void open_chat_reverce(View v) { //   if (author.equals(client)) { //      //    Toast.makeText(this, "author = client !", Toast.LENGTH_SHORT) .show(); } else { //    client > author Intent intent = new Intent(MainActivity.this, ChatActivity.class); intent.putExtra("author", client); intent.putExtra("client", author); startActivity(intent); } } //          public void delete_server_chats(View v) { Log.i("chat", "+ MainActivity -      "); delete_server_chat.setEnabled(false); delete_server_chat.setText(" . ..."); DELETEfromChat delete_from_chat = new DELETEfromChat(); delete_from_chat.execute(); } //     //     public void delete_local_chats(View v) { Log.i("chat", "+ MainActivity -     "); SQLiteDatabase chatDBlocal; chatDBlocal = openOrCreateDatabase("chatDBlocal.db", Context.MODE_PRIVATE, null); chatDBlocal.execSQL("drop table chat"); chatDBlocal .execSQL("CREATE TABLE IF NOT EXISTS chat (_id integer primary key autoincrement, author, client, data, text)"); Toast.makeText(getApplicationContext(), "    !", Toast.LENGTH_SHORT).show(); } //          //    -    //    (     ) // -   private class DELETEfromChat extends AsyncTask<Void, Void, Integer> { Integer res; HttpURLConnection conn; protected Integer doInBackground(Void... params) { try { URL url = new URL(server_name + "/chat.php?action=delete"); conn = (HttpURLConnection) url.openConnection(); conn.setConnectTimeout(10000); //  10 conn.setRequestMethod("POST"); conn.setRequestProperty("User-Agent", "Mozilla/5.0"); conn.connect(); res = conn.getResponseCode(); Log.i("chat", "+ MainActivity -   (200 = ): " + res.toString()); } catch (Exception e) { Log.i("chat", "+ MainActivity -   : " + e.getMessage()); } finally { conn.disconnect(); } return res; } protected void onPostExecute(Integer result) { try { if (result == 200) { Toast.makeText(getApplicationContext(), "   !", Toast.LENGTH_SHORT) .show(); } } catch (Exception e) { Toast.makeText(getApplicationContext(), "  .", Toast.LENGTH_SHORT) .show(); } finally { //    delete_server_chat.setEnabled(true); delete_server_chat.setText("    !"); } } } public void onBackPressed() { Log.i("chat", "+ MainActivity -   "); finish(); } } 

 package by.andreidanilevich.temp_chat; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.util.Log; public class AutoRun extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { if (intent.getAction().equals("android.intent.action.BOOT_COMPLETED")) { //  boot_completed -  FoneService context.startService(new Intent(context, FoneService.class)); Log.i("chat", "+ AutoRun - "); } } } <b>:</b> 

 <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="by.andreidanilevich.temp_chat" android:versionCode="1" android:versionName="1.0" > <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" /> <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="22" /> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:name=".MainActivity" android:label="@string/app_name" android:screenOrientation="portrait" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:name=".ChatActivity" android:label="@string/app_name" android:screenOrientation="portrait" > </activity> <receiver android:name=".AutoRun" android:enabled="true" android:exported="false" > <intent-filter> <action android:name="android.intent.action.BOOT_COMPLETED" /> </intent-filter> </receiver> <service android:name=".FoneService" /> </application> </manifest> 

 <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#999999" > <ListView android:id="@+id/lv" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_marginBottom="60dp" android:scrollbars="none" android:stackFromBottom="true" android:transcriptMode="alwaysScroll" > </ListView> <LinearLayout android:layout_width="match_parent" android:layout_height="60dp" android:layout_alignParentBottom="true" android:background="#ffffff" > <EditText android:id="@+id/et" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_gravity="top" android:layout_weight="1" android:ems="10" > </EditText> <Button android:id="@+id/bt" android:layout_width="50dp" android:layout_height="wrap_content" android:layout_gravity="top" android:onClick="send" android:text=">" /> </LinearLayout> </RelativeLayout> 

 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" tools:context="${relativePackage}.${activityClass}" > <Spinner android:id="@+id/spinner_author" android:layout_width="match_parent" android:layout_height="wrap_content" /> <Spinner android:id="@+id/spinner_client" android:layout_width="match_parent" android:layout_height="wrap_content" /> <Button android:id="@+id/open_chat_btn" android:layout_width="match_parent" android:layout_height="wrap_content" android:onClick="open_chat" /> <Button android:id="@+id/open_chat_reverce_btn" android:layout_width="match_parent" android:layout_height="wrap_content" android:onClick="open_chat_reverce" /> <Button android:id="@+id/delete_server_chat" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="50dp" android:onClick="delete_server_chats" android:text="    !" /> <Button android:layout_width="match_parent" android:layout_height="wrap_content" android:onClick="delete_local_chats" android:text="     !" /> </LinearLayout> 

 <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content" android:background="#999999" android:orientation="vertical" > <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="5dp" > <TextView android:id="@+id/author" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="left" android:textColor="#c6c6c6" android:textSize="12sp" /> <TextView android:id="@+id/client" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="left" android:textColor="#c6c6c6" android:textSize="12sp" /> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginBottom="5dp" android:layout_marginTop="5dp" > <TextView android:id="@+id/list_author" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="left" android:textColor="#0000ff" android:textSize="14sp" android:textStyle="bold" /> <TextView android:id="@+id/list_client" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="left" android:textColor="#ffff00" android:textSize="14sp" android:textStyle="bold" /> </LinearLayout> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginBottom="5dp" > <TextView android:id="@+id/list_author_time" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="right" android:textColor="#c6c6c6" android:textSize="12sp" /> <TextView android:id="@+id/list_client_time" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="right" android:textColor="#c6c6c6" android:textSize="12sp" /> </LinearLayout> </LinearLayout>