Android之基于xmpp openfire smack开发之Android客户端开发[3]
16lz
2021-01-23
http://blog.csdn.net/shimiso/article/details/11225873
在上两篇文章中，我们依次介绍openfire部署以及smack常用API的使用，这一节中我们着力介绍如何基于asmack开发一个Android的客户端，本篇的重点在实践，讲解和原理环节，大家可以参考前两篇的文章
1.源码结构介绍
![Android之基于xmpp openfire smack开发之Android客户端开发[3]_第1张图片](https://img.16lz.com/image/info5/4f32cce4ea954bdc85889c28c81f5786.jpg)
activity包下存放一些android页面交互相关的控制程序，还有一个些公共帮助类
db包为sqlite的工具类封装，这里做了一些自定义的改造，稍微仿Spring的JdbcTemplate结构，使用起来更加方便一点
manager包留下主要是一些管理组件，包括联系人管理，消息管理，提醒管理，离线消息管理，用户管理，xmpp连接管理
model包中都是一些对象模型，传输介质
service中存放一些android后台的核心服务，主要包括聊天服务，联系人服务，系统消息服务，重连接服务
task包中存放一些耗时的异步操作
util中存放一些常用的工具类
view中一些和android的UI相关的显示控件
![Android之基于xmpp openfire smack开发之Android客户端开发[3]_第2张图片](https://img.16lz.com/image/info5/ff04c39772ff42bd8675effed0ef2bbb.jpg)
anim中存放一些动画元素的配置
layout是布局页面
menu是地步菜单布局页面
values中存放一些字符，颜色，样式，参数的配置信息
其中strings.xml中，保存的缺省配置为gtalk的服务器信息，大家如果有谷歌gtalk的账号可以直接登录，否则需要更改这里的配置才可以使用其他的xmpp服务器
<!-- 缺省的服务器配置 --> <integer name="xmpp_port">5222</integer> <string name="xmpp_host">talk.google.com</string> <string name="xmpp_service_name">gmail.com</string> <bool name="is_remember">true</bool> <bool name="is_autologin">false</bool> <bool name="is_novisible">false</bool>AndroidManifest.xml为android功能清单的配置文件，我们这里开放的权限并不多
<!-- 访问Internet --> <uses-permission android:name="android.permission.INTERNET" /> <!--- 访问网络状态 --> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <!-- 往SDCard写入数据权限 --> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> <span style="WHITE-SPACE: pre"> </span><!-- 在SDCard中创建与删除文件权限 --> <span style="WHITE-SPACE: pre"> </span><uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"/> <span style="WHITE-SPACE: pre"> </span><!-- 往SDCard写入数据权限 --> <span style="WHITE-SPACE: pre"> </span><uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
2.核心类介绍
1.ActivitySupport类package csdn.shimiso.eim.activity; import android.app.Activity; import android.app.AlertDialog; import android.app.Notification; import android.app.NotificationManager; import android.app.PendingIntent; import android.app.ProgressDialog; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.content.SharedPreferences; import android.location.LocationManager; import android.net.ConnectivityManager; import android.net.NetworkInfo; import android.os.Bundle; import android.os.Environment; import android.provider.Settings; import android.view.inputmethod.InputMethodManager; import android.widget.Toast; import csdn.shimiso.eim.R; import csdn.shimiso.eim.comm.Constant; import csdn.shimiso.eim.model.LoginConfig; import csdn.shimiso.eim.service.IMChatService; import csdn.shimiso.eim.service.IMContactService; import csdn.shimiso.eim.service.IMSystemMsgService; import csdn.shimiso.eim.service.ReConnectService; /** * Actity 工具支持类 * * @author shimiso * */ public class ActivitySupport extends Activity implements IActivitySupport { protected Context context = null; protected SharedPreferences preferences; protected EimApplication eimApplication; protected ProgressDialog pg = null; protected NotificationManager notificationManager; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); context = this; preferences = getSharedPreferences(Constant.LOGIN_SET, 0); notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE); pg = new ProgressDialog(context); eimApplication = (EimApplication) getApplication(); eimApplication.addActivity(this); } @Override protected void onStart() { super.onStart(); } @Override protected void onResume() { super.onResume(); } @Override protected void onPause() { super.onPause(); } @Override protected void onStop() { super.onStop(); } @Override public void onDestroy() { super.onDestroy(); } @Override public ProgressDialog getProgressDialog() { return pg; } @Override public void startService() { // 好友联系人服务 Intent server = new Intent(context, IMContactService.class); context.startService(server); // 聊天服务 Intent chatServer = new Intent(context, IMChatService.class); context.startService(chatServer); // 自动恢复连接服务 Intent reConnectService = new Intent(context, ReConnectService.class); context.startService(reConnectService); // 系统消息连接服务 Intent imSystemMsgService = new Intent(context, IMSystemMsgService.class); context.startService(imSystemMsgService); } /** * * 销毁服务. * * @author shimiso * @update 2012-5-16 下午12:16:08 */ @Override public void stopService() { // 好友联系人服务 Intent server = new Intent(context, IMContactService.class); context.stopService(server); // 聊天服务 Intent chatServer = new Intent(context, IMChatService.class); context.stopService(chatServer); // 自动恢复连接服务 Intent reConnectService = new Intent(context, ReConnectService.class); context.stopService(reConnectService); // 系统消息连接服务 Intent imSystemMsgService = new Intent(context, IMSystemMsgService.class); context.stopService(imSystemMsgService); } @Override public void isExit() { new AlertDialog.Builder(context).setTitle("确定退出吗?") .setNeutralButton("确定", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { stopService(); eimApplication.exit(); } }) .setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.cancel(); } }).show(); } @Override public boolean hasInternetConnected() { ConnectivityManager manager = (ConnectivityManager) context .getSystemService(context.CONNECTIVITY_SERVICE); if (manager != null) { NetworkInfo network = manager.getActiveNetworkInfo(); if (network != null && network.isConnectedOrConnecting()) { return true; } } return false; } @Override public boolean validateInternet() { ConnectivityManager manager = (ConnectivityManager) context .getSystemService(context.CONNECTIVITY_SERVICE); if (manager == null) { openWirelessSet(); return false; } else { NetworkInfo[] info = manager.getAllNetworkInfo(); if (info != null) { for (int i = 0; i < info.length; i++) { if (info[i].getState() == NetworkInfo.State.CONNECTED) { return true; } } } } openWirelessSet(); return false; } @Override public boolean hasLocationGPS() { LocationManager manager = (LocationManager) context .getSystemService(context.LOCATION_SERVICE); if (manager .isProviderEnabled(android.location.LocationManager.GPS_PROVIDER)) { return true; } else { return false; } } @Override public boolean hasLocationNetWork() { LocationManager manager = (LocationManager) context .getSystemService(context.LOCATION_SERVICE); if (manager .isProviderEnabled(android.location.LocationManager.NETWORK_PROVIDER)) { return true; } else { return false; } } @Override public void checkMemoryCard() { if (!Environment.MEDIA_MOUNTED.equals(Environment .getExternalStorageState())) { new AlertDialog.Builder(context) .setTitle(R.string.prompt) .setMessage("请检查内存卡") .setPositiveButton(R.string.menu_settings, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.cancel(); Intent intent = new Intent( Settings.ACTION_SETTINGS); context.startActivity(intent); } }) .setNegativeButton("退出", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.cancel(); eimApplication.exit(); } }).create().show(); } } public void openWirelessSet() { AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(context); dialogBuilder .setTitle(R.string.prompt) .setMessage(context.getString(R.string.check_connection)) .setPositiveButton(R.string.menu_settings, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.cancel(); Intent intent = new Intent( Settings.ACTION_WIRELESS_SETTINGS); context.startActivity(intent); } }) .setNegativeButton(R.string.close, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int whichButton) { dialog.cancel(); } }); dialogBuilder.show(); } /** * * 显示toast * * @param text * @param longint * @author shimiso * @update 2012-6-28 下午3:46:18 */ public void showToast(String text, int longint) { Toast.makeText(context, text, longint).show(); } @Override public void showToast(String text) { Toast.makeText(context, text, Toast.LENGTH_SHORT).show(); } /** * * 关闭键盘事件 * * @author shimiso * @update 2012-7-4 下午2:34:34 */ public void closeInput() { InputMethodManager inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE); if (inputMethodManager != null && this.getCurrentFocus() != null) { inputMethodManager.hideSoftInputFromWindow(this.getCurrentFocus() .getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS); } } /** * * 发出Notification的method. * * @param iconId * 图标 * @param contentTitle * 标题 * @param contentText * 你内容 * @param activity * @author shimiso * @update 2012-5-14 下午12:01:55 */ public void setNotiType(int iconId, String contentTitle, String contentText, Class activity, String from) { /* * 创建新的Intent，作为点击Notification留言条时， 会运行的Activity */ Intent notifyIntent = new Intent(this, activity); notifyIntent.putExtra("to", from); // notifyIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); /* 创建PendingIntent作为设置递延运行的Activity */ PendingIntent appIntent = PendingIntent.getActivity(this, 0, notifyIntent, 0); /* 创建Notication，并设置相关参数 */ Notification myNoti = new Notification(); // 点击自动消失 myNoti.flags = Notification.FLAG_AUTO_CANCEL; /* 设置statusbar显示的icon */ myNoti.icon = iconId; /* 设置statusbar显示的文字信息 */ myNoti.tickerText = contentTitle; /* 设置notification发生时同时发出默认声音 */ myNoti.defaults = Notification.DEFAULT_SOUND; /* 设置Notification留言条的参数 */ myNoti.setLatestEventInfo(this, contentTitle, contentText, appIntent); /* 送出Notification */ notificationManager.notify(0, myNoti); } @Override public Context getContext() { return context; } @Override public SharedPreferences getLoginUserSharedPre() { return preferences; } @Override public void saveLoginConfig(LoginConfig loginConfig) { preferences.edit() .putString(Constant.XMPP_HOST, loginConfig.getXmppHost()) .commit(); preferences.edit() .putInt(Constant.XMPP_PORT, loginConfig.getXmppPort()).commit(); preferences .edit() .putString(Constant.XMPP_SEIVICE_NAME, loginConfig.getXmppServiceName()).commit(); preferences.edit() .putString(Constant.USERNAME, loginConfig.getUsername()) .commit(); preferences.edit() .putString(Constant.PASSWORD, loginConfig.getPassword()) .commit(); preferences.edit() .putBoolean(Constant.IS_AUTOLOGIN, loginConfig.isAutoLogin()) .commit(); preferences.edit() .putBoolean(Constant.IS_NOVISIBLE, loginConfig.isNovisible()) .commit(); preferences.edit() .putBoolean(Constant.IS_REMEMBER, loginConfig.isRemember()) .commit(); preferences.edit() .putBoolean(Constant.IS_ONLINE, loginConfig.isOnline()) .commit(); preferences.edit() .putBoolean(Constant.IS_FIRSTSTART, loginConfig.isFirstStart()) .commit(); } @Override public LoginConfig getLoginConfig() { LoginConfig loginConfig = new LoginConfig(); String a = preferences.getString(Constant.XMPP_HOST, null); String b = getResources().getString(R.string.xmpp_host); loginConfig.setXmppHost(preferences.getString(Constant.XMPP_HOST, getResources().getString(R.string.xmpp_host))); loginConfig.setXmppPort(preferences.getInt(Constant.XMPP_PORT, getResources().getInteger(R.integer.xmpp_port))); loginConfig.setUsername(preferences.getString(Constant.USERNAME, null)); loginConfig.setPassword(preferences.getString(Constant.PASSWORD, null)); loginConfig.setXmppServiceName(preferences.getString( Constant.XMPP_SEIVICE_NAME, getResources().getString(R.string.xmpp_service_name))); loginConfig.setAutoLogin(preferences.getBoolean(Constant.IS_AUTOLOGIN, getResources().getBoolean(R.bool.is_autologin))); loginConfig.setNovisible(preferences.getBoolean(Constant.IS_NOVISIBLE, getResources().getBoolean(R.bool.is_novisible))); loginConfig.setRemember(preferences.getBoolean(Constant.IS_REMEMBER, getResources().getBoolean(R.bool.is_remember))); loginConfig.setFirstStart(preferences.getBoolean( Constant.IS_FIRSTSTART, true)); return loginConfig; } @Override public boolean getUserOnlineState() { // preferences = getSharedPreferences(Constant.LOGIN_SET,0); return preferences.getBoolean(Constant.IS_ONLINE, true); } @Override public void setUserOnlineState(boolean isOnline) { // preferences = getSharedPreferences(Constant.LOGIN_SET,0); preferences.edit().putBoolean(Constant.IS_ONLINE, isOnline).commit(); } @Override public EimApplication getEimApplication() { return eimApplication; } } 大家写android程序会发现，不同的activity之间经常需要调用一些公共的资源，这里的资源不仅包括android自身的，还有我们自己的管理服务类，甚至相互之间传递一些参数，这里我仿照struts2的设计，提炼出一个ActivitySupport类，同时抽取一个接口，让所有的Activity都集成这个类，因为有了接口，我们便可以采用回调模式，非常方便的传递数据和使用公共的资源，这种好处相信大家使用之后都能有深刻的体会，通过接口回调传递参数和相互调用的方式无疑是最优雅的，spring和hibernate源码中曾经大量使用这种结构。 2.SQLiteTemplate类
package csdn.shimiso.eim.db; import java.util.ArrayList; import java.util.List; import android.content.ContentValues; import android.database.Cursor; import android.database.sqlite.SQLiteDatabase; /** * SQLite数据库模板工具类 * * 该类提供了数据库操作常用的增删改查,以及各种复杂条件匹配,分页,排序等操作 * * @see SQLiteDatabase */ public class SQLiteTemplate { /** * Default Primary key */ protected String mPrimaryKey = "_id"; /** * DBManager */ private DBManager dBManager; /** * 是否为一个事务 */ private boolean isTransaction = false; /** * 数据库连接 */ private SQLiteDatabase dataBase = null; private SQLiteTemplate() { } private SQLiteTemplate(DBManager dBManager, boolean isTransaction) { this.dBManager = dBManager; this.isTransaction = isTransaction; } /** * isTransaction 是否属于一个事务 注:一旦isTransaction设为true * 所有的SQLiteTemplate方法都不会自动关闭资源,需在事务成功后手动关闭 * * @return */ public static SQLiteTemplate getInstance(DBManager dBManager, boolean isTransaction) { return new SQLiteTemplate(dBManager, isTransaction); } /** * 执行一条sql语句 * * @param name * @param tel */ public void execSQL(String sql) { try { dataBase = dBManager.openDatabase(); dataBase.execSQL(sql); } catch (Exception e) { e.printStackTrace(); } finally { if (!isTransaction) { closeDatabase(null); } } } /** * 执行一条sql语句 * * @param name * @param tel */ public void execSQL(String sql, Object[] bindArgs) { try { dataBase = dBManager.openDatabase(); dataBase.execSQL(sql, bindArgs); } catch (Exception e) { e.printStackTrace(); } finally { if (!isTransaction) { closeDatabase(null); } } } /** * 向数据库表中插入一条数据 * * @param table * 表名 * @param content * 字段值 */ public long insert(String table, ContentValues content) { try { dataBase = dBManager.openDatabase(); // insert方法第一参数：数据库表名，第二个参数如果CONTENT为空时则向表中插入一个NULL,第三个参数为插入的内容 return dataBase.insert(table, null, content); } catch (Exception e) { e.printStackTrace(); } finally { if (!isTransaction) { closeDatabase(null); } } return 0; } /** * 批量删除指定主键数据 * * @param ids */ public void deleteByIds(String table, Object... primaryKeys) { try { if (primaryKeys.length > 0) { StringBuilder sb = new StringBuilder(); for (@SuppressWarnings("unused") Object id : primaryKeys) { sb.append("?").append(","); } sb.deleteCharAt(sb.length() - 1); dataBase = dBManager.openDatabase(); dataBase.execSQL("delete from " + table + " where " + mPrimaryKey + " in(" + sb + ")", (Object[]) primaryKeys); } } catch (Exception e) { e.printStackTrace(); } finally { if (!isTransaction) { closeDatabase(null); } } } /** * 根据某一个字段和值删除一行数据, 如 name="jack" * * @param table * @param field * @param value * @return 返回值大于0表示删除成功 */ public int deleteByField(String table, String field, String value) { try { dataBase = dBManager.openDatabase(); return dataBase.delete(table, field + "=?", new String[] { value }); } catch (Exception e) { e.printStackTrace(); } finally { if (!isTransaction) { closeDatabase(null); } } return 0; } /** * 根据条件删除数据 * * @param table * 表名 * @param whereClause * 查询语句 参数采用? * @param whereArgs * 参数值 * @return 返回值大于0表示删除成功 */ public int deleteByCondition(String table, String whereClause, String[] whereArgs) { try { dataBase = dBManager.openDatabase(); return dataBase.delete(table, whereClause, whereArgs); } catch (Exception e) { e.printStackTrace(); } finally { if (!isTransaction) { closeDatabase(null); } } return 0; } /** * 根据主键删除一行数据 * * @param table * @param id * @return 返回值大于0表示删除成功 */ public int deleteById(String table, String id) { try { dataBase = dBManager.openDatabase(); return deleteByField(table, mPrimaryKey, id); } catch (Exception e) { e.printStackTrace(); } finally { if (!isTransaction) { closeDatabase(null); } } return 0; } /** * 根据主键更新一行数据 * * @param table * @param id * @param values * @return 返回值大于0表示更新成功 */ public int updateById(String table, String id, ContentValues values) { try { dataBase = dBManager.openDatabase(); return dataBase.update(table, values, mPrimaryKey + "=?", new String[] { id }); } catch (Exception e) { e.printStackTrace(); } finally { if (!isTransaction) { closeDatabase(null); } } return 0; } /** * 更新数据 * * @param table * @param values * @param whereClause * @param whereArgs * @return 返回值大于0表示更新成功 */ public int update(String table, ContentValues values, String whereClause, String[] whereArgs) { try { dataBase = dBManager.openDatabase(); return dataBase.update(table, values, whereClause, whereArgs); } catch (Exception e) { e.printStackTrace(); } finally { if (!isTransaction) { closeDatabase(null); } } return 0; } /** * 根据主键查看某条数据是否存在 * * @param table * @param id * @return */ public Boolean isExistsById(String table, String id) { try { dataBase = dBManager.openDatabase(); return isExistsByField(table, mPrimaryKey, id); } catch (Exception e) { e.printStackTrace(); } finally { if (!isTransaction) { closeDatabase(null); } } return null; } /** * 根据某字段/值查看某条数据是否存在 * * @param status * @return */ public Boolean isExistsByField(String table, String field, String value) { StringBuilder sql = new StringBuilder(); sql.append("SELECT COUNT(*) FROM ").append(table).append(" WHERE ") .append(field).append(" =?"); try { dataBase = dBManager.openDatabase(); return isExistsBySQL(sql.toString(), new String[] { value }); } catch (Exception e) { e.printStackTrace(); } finally { if (!isTransaction) { closeDatabase(null); } } return null; } /** * 使用SQL语句查看某条数据是否存在 * * @param sql * @param selectionArgs * @return */ public Boolean isExistsBySQL(String sql, String[] selectionArgs) { Cursor cursor = null; try { dataBase = dBManager.openDatabase(); cursor = dataBase.rawQuery(sql, selectionArgs); if (cursor.moveToFirst()) { return (cursor.getInt(0) > 0); } else { return false; } } catch (Exception e) { e.printStackTrace(); } finally { if (!isTransaction) { closeDatabase(cursor); } } return null; } /** * 查询一条数据 * * @param rowMapper * @param sql * @param args * @return */ public <T> T queryForObject(RowMapper<T> rowMapper, String sql, String[] args) { Cursor cursor = null; T object = null; try { dataBase = dBManager.openDatabase(); cursor = dataBase.rawQuery(sql, args); if (cursor.moveToFirst()) { object = rowMapper.mapRow(cursor, cursor.getCount()); } } finally { if (!isTransaction) { closeDatabase(cursor); } } return object; } /** * 查询 * * @param rowMapper * @param sql * @param startResult * 开始索引 注:第一条记录索引为0 * @param maxResult * 步长 * @return */ public <T> List<T> queryForList(RowMapper<T> rowMapper, String sql, String[] selectionArgs) { Cursor cursor = null; List<T> list = null; try { dataBase = dBManager.openDatabase(); cursor = dataBase.rawQuery(sql, selectionArgs); list = new ArrayList<T>(); while (cursor.moveToNext()) { list.add(rowMapper.mapRow(cursor, cursor.getPosition())); } } finally { if (!isTransaction) { closeDatabase(cursor); } } return list; } /** * 分页查询 * * @param rowMapper * @param sql * @param startResult * 开始索引 注:第一条记录索引为0 * @param maxResult * 步长 * @return */ public <T> List<T> queryForList(RowMapper<T> rowMapper, String sql, int startResult, int maxResult) { Cursor cursor = null; List<T> list = null; try { dataBase = dBManager.openDatabase(); cursor = dataBase.rawQuery(sql + " limit ?,?", new String[] { String.valueOf(startResult), String.valueOf(maxResult) }); list = new ArrayList<T>(); while (cursor.moveToNext()) { list.add(rowMapper.mapRow(cursor, cursor.getPosition())); } } finally { if (!isTransaction) { closeDatabase(cursor); } } return list; } /** * 获取记录数 * * @return */ public Integer getCount(String sql, String[] args) { Cursor cursor = null; try { dataBase = dBManager.openDatabase(); cursor = dataBase.rawQuery("select count(*) from (" + sql + ")", args); if (cursor.moveToNext()) { return cursor.getInt(0); } } catch (Exception e) { e.printStackTrace(); } finally { if (!isTransaction) { closeDatabase(cursor); } } return 0; } /** * 分页查询 * * @param rowMapper * @param table * 检索的表 * @param columns * 由需要返回列的列名所组成的字符串数组，传入null会返回所有的列。 * @param selection * 查询条件子句，相当于select语句where关键字后面的部分，在条件子句允许使用占位符"?" * @param selectionArgs * 对应于selection语句中占位符的值，值在数组中的位置与占位符在语句中的位置必须一致，否则就会有异常 * @param groupBy * 对结果集进行分组的group by语句（不包括GROUP BY关键字）。传入null将不对结果集进行分组 * @param having * 对查询后的结果集进行过滤,传入null则不过滤 * @param orderBy * 对结果集进行排序的order by语句（不包括ORDER BY关键字）。传入null将对结果集使用默认的排序 * @param limit * 指定偏移量和获取的记录数，相当于select语句limit关键字后面的部分,如果为null则返回所有行 * @return */ public <T> List<T> queryForList(RowMapper<T> rowMapper, String table, String[] columns, String selection, String[] selectionArgs, String groupBy, String having, String orderBy, String limit) { List<T> list = null; Cursor cursor = null; try { dataBase = dBManager.openDatabase(); cursor = dataBase.query(table, columns, selection, selectionArgs, groupBy, having, orderBy, limit); list = new ArrayList<T>(); while (cursor.moveToNext()) { list.add(rowMapper.mapRow(cursor, cursor.getPosition())); } } finally { if (!isTransaction) { closeDatabase(cursor); } } return list; } /** * Get Primary Key * * @return */ public String getPrimaryKey() { return mPrimaryKey; } /** * Set Primary Key * * @param primaryKey */ public void setPrimaryKey(String primaryKey) { this.mPrimaryKey = primaryKey; } /** * * @author shimiso * * @param <T> */ public interface RowMapper<T> { /** * * @param cursor * 游标 * @param index * 下标索引 * @return */ public T mapRow(Cursor cursor, int index); } /** * 关闭数据库 */ public void closeDatabase(Cursor cursor) { if (null != dataBase) { dataBase.close(); } if (null != cursor) { cursor.close(); } } } 我们希望在android操作数据库是优雅的一种方式，这里不必关注事务，也不用担心分页，更不用为了封装传递对象烦恼，总之一切就像面向对象那样，简单，模板类的出现正是解决这个问题，虽然它看上去可能不是那么完美有待提高，这里我封装了很多sqlite常用的工具，大家可以借鉴使用。 3.XmppConnectionManager管理类
package csdn.shimiso.eim.manager; import org.jivesoftware.smack.Connection; import org.jivesoftware.smack.ConnectionConfiguration; import org.jivesoftware.smack.Roster; import org.jivesoftware.smack.XMPPConnection; import org.jivesoftware.smack.provider.ProviderManager; import org.jivesoftware.smackx.GroupChatInvitation; import org.jivesoftware.smackx.PrivateDataManager; import org.jivesoftware.smackx.packet.ChatStateExtension; import org.jivesoftware.smackx.packet.LastActivity; import org.jivesoftware.smackx.packet.OfflineMessageInfo; import org.jivesoftware.smackx.packet.OfflineMessageRequest; import org.jivesoftware.smackx.packet.SharedGroupsInfo; import org.jivesoftware.smackx.provider.DataFormProvider; import org.jivesoftware.smackx.provider.DelayInformationProvider; import org.jivesoftware.smackx.provider.DiscoverInfoProvider; import org.jivesoftware.smackx.provider.DiscoverItemsProvider; import org.jivesoftware.smackx.provider.MUCAdminProvider; import org.jivesoftware.smackx.provider.MUCOwnerProvider; import org.jivesoftware.smackx.provider.MUCUserProvider; import org.jivesoftware.smackx.provider.MessageEventProvider; import org.jivesoftware.smackx.provider.MultipleAddressesProvider; import org.jivesoftware.smackx.provider.RosterExchangeProvider; import org.jivesoftware.smackx.provider.StreamInitiationProvider; import org.jivesoftware.smackx.provider.VCardProvider; import org.jivesoftware.smackx.provider.XHTMLExtensionProvider; import org.jivesoftware.smackx.search.UserSearch; import csdn.shimiso.eim.model.LoginConfig; /** * * XMPP服务器连接工具类. * * @author shimiso */ public class XmppConnectionManager { private XMPPConnection connection; private static ConnectionConfiguration connectionConfig; private static XmppConnectionManager xmppConnectionManager; private XmppConnectionManager() { } public static XmppConnectionManager getInstance() { if (xmppConnectionManager == null) { xmppConnectionManager = new XmppConnectionManager(); } return xmppConnectionManager; } // init public XMPPConnection init(LoginConfig loginConfig) { Connection.DEBUG_ENABLED = false; ProviderManager pm = ProviderManager.getInstance(); configure(pm); connectionConfig = new ConnectionConfiguration( loginConfig.getXmppHost(), loginConfig.getXmppPort(), loginConfig.getXmppServiceName()); connectionConfig.setSASLAuthenticationEnabled(false);// 不使用SASL验证，设置为false connectionConfig .setSecurityMode(ConnectionConfiguration.SecurityMode.enabled); // 允许自动连接 connectionConfig.setReconnectionAllowed(false); // 允许登陆成功后更新在线状态 connectionConfig.setSendPresence(true); // 收到好友邀请后manual表示需要经过同意,accept_all表示不经同意自动为好友 Roster.setDefaultSubscriptionMode(Roster.SubscriptionMode.manual); connection = new XMPPConnection(connectionConfig); return connection; } /** * * 返回一个有效的xmpp连接,如果无效则返回空. * * @return * @author shimiso * @update 2012-7-4 下午6:54:31 */ public XMPPConnection getConnection() { if (connection == null) { throw new RuntimeException("请先初始化XMPPConnection连接"); } return connection; } /** * * 销毁xmpp连接. * * @author shimiso * @update 2012-7-4 下午6:55:03 */ public void disconnect() { if (connection != null) { connection.disconnect(); } } public void configure(ProviderManager pm) { // Private Data Storage pm.addIQProvider("query", "jabber:iq:private", new PrivateDataManager.PrivateDataIQProvider()); // Time try { pm.addIQProvider("query", "jabber:iq:time", Class.forName("org.jivesoftware.smackx.packet.Time")); } catch (ClassNotFoundException e) { } // XHTML pm.addExtensionProvider("html", "http://jabber.org/protocol/xhtml-im", new XHTMLExtensionProvider()); // Roster Exchange pm.addExtensionProvider("x", "jabber:x:roster", new RosterExchangeProvider()); // Message Events pm.addExtensionProvider("x", "jabber:x:event", new MessageEventProvider()); // Chat State pm.addExtensionProvider("active", "http://jabber.org/protocol/chatstates", new ChatStateExtension.Provider()); pm.addExtensionProvider("composing", "http://jabber.org/protocol/chatstates", new ChatStateExtension.Provider()); pm.addExtensionProvider("paused", "http://jabber.org/protocol/chatstates", new ChatStateExtension.Provider()); pm.addExtensionProvider("inactive", "http://jabber.org/protocol/chatstates", new ChatStateExtension.Provider()); pm.addExtensionProvider("gone", "http://jabber.org/protocol/chatstates", new ChatStateExtension.Provider()); // FileTransfer pm.addIQProvider("si", "http://jabber.org/protocol/si", new StreamInitiationProvider()); // Group Chat Invitations pm.addExtensionProvider("x", "jabber:x:conference", new GroupChatInvitation.Provider()); // Service Discovery # Items pm.addIQProvider("query", "http://jabber.org/protocol/disco#items", new DiscoverItemsProvider()); // Service Discovery # Info pm.addIQProvider("query", "http://jabber.org/protocol/disco#info", new DiscoverInfoProvider()); // Data Forms pm.addExtensionProvider("x", "jabber:x:data", new DataFormProvider()); // MUC User pm.addExtensionProvider("x", "http://jabber.org/protocol/muc#user", new MUCUserProvider()); // MUC Admin pm.addIQProvider("query", "http://jabber.org/protocol/muc#admin", new MUCAdminProvider()); // MUC Owner pm.addIQProvider("query", "http://jabber.org/protocol/muc#owner", new MUCOwnerProvider()); // Delayed Delivery pm.addExtensionProvider("x", "jabber:x:delay", new DelayInformationProvider()); // Version try { pm.addIQProvider("query", "jabber:iq:version", Class.forName("org.jivesoftware.smackx.packet.Version")); } catch (ClassNotFoundException e) { } // VCard pm.addIQProvider("vCard", "vcard-temp", new VCardProvider()); // Offline Message Requests pm.addIQProvider("offline", "http://jabber.org/protocol/offline", new OfflineMessageRequest.Provider()); // Offline Message Indicator pm.addExtensionProvider("offline", "http://jabber.org/protocol/offline", new OfflineMessageInfo.Provider()); // Last Activity pm.addIQProvider("query", "jabber:iq:last", new LastActivity.Provider()); // User Search pm.addIQProvider("query", "jabber:iq:search", new UserSearch.Provider()); // SharedGroupsInfo pm.addIQProvider("sharedgroup", "http://www.jivesoftware.org/protocol/sharedgroup", new SharedGroupsInfo.Provider()); // JEP-33: Extended Stanza Addressing pm.addExtensionProvider("addresses", "http://jabber.org/protocol/address", new MultipleAddressesProvider()); } } 这个类是xmpp连接的管理类，如果大家使用smack的api对这个应该不会陌生，asmack对xmpp连接的管理，与smack的差别不大，但是部分细微区别也有，我们在使用中如果遇到问题，还要多加注意，我们这里将其设计成单例，毕竟重复创建连接是个非常消耗的过程。
3.演示效果
![Android之基于xmpp openfire smack开发之Android客户端开发[3]_第3张图片](https://img.16lz.com/image/info5/360b89b422ac41848823a691921a9ccb.jpg)
![Android之基于xmpp openfire smack开发之Android客户端开发[3]_第4张图片](https://img.16lz.com/image/info5/e262255d670847c18c5b2b9d37741fd9.jpg)
很像QQ吧，没错，这是2012年版本qq的安卓界面，只是界面元素一样，实现方式大不相同，下面简单列一下这个客户端实现的功能： 1.聊天 2.离线消息 3.添加，删除好友 4.添加，移动好友分组 5.设置昵称 6.监控好友状态 7.网络断开系统自动重连接 8.收到添加好友请求消息处理 9.收到系统广播消息处理 10.查看历史聊天记录 11.消息弹出提醒，和小气泡 .... 因为时间关系不是很完美，主要用于学习研究，欢迎大家给我提bug和改进意见。
4.源码下载
http://download.csdn.net/detail/shimiso/6224163
分数比较大，不是为了坑大家，是怕有伸手党出现，拿了源码出去招摇撞骗，请尊重作者原创！
参阅文献
Openfirehttp://www.igniterealtime.org/
push-notificationhttp://www.push-notification.org/
Claros chathttp://www.claros.org/
androidpnsourceforgehttp://sourceforge.net/projects/androidpn/
android消息推送解决方案http://www.cnblogs.com/hanyonglu/archive/2012/03/04/2378971.html
xmpp协议实现原理介绍http://www.cnblogs.com/hanyonglu/archive/2012/03/04/2378956.html
更多相关文章
- android 连接远程数据库
- Android[中级教程]第八章 Json数据的处理
- (转)Android从服务器端获取数据的几种方法
- 【Android Training - 04】保存数据 [ Lesson 2 - 保存文件]
- Android adb forward转发TCP端口连接数据
- Android：SNS客户端开发四：数据库操作(二)
- Android之MVP模式实现登录和网络数据加载