首先要創建連接監聽器,用來監聽連接狀態,這裏我寫了一個類
繼承了ConnectionListener,重寫了裏面5個方法,最重要的兩個方法connectionClosed()和connectionClosedOnError()
前者爲連接正常斷開,後者是連接異常斷開,不管是正常還是異常,我們都要監聽到
這裏寫了一個定時器,兩秒進行連接一次,註釋寫的也很清楚,不做太多介紹
要注意的是我把用戶名和密碼都存到sharePreferences中了
- package com.techrare.listener;
- import java.util.Timer;
- import java.util.TimerTask;
- import org.jivesoftware.smack.ConnectionListener;
- import android.util.Log;
- import com.techrare.taxicall.MainActivity;
- import com.techrare.utils.Utils;
- import com.techrare.utils.XmppConnection;
- /**
- * 連接監聽類
- *
- * @author Administrator
- *
- */
- public class TaxiConnectionListener implements ConnectionListener {
- private Timer tExit;
- private String username;
- private String password;
- private int logintime = 2000;
- @Override
- public void connectionClosed() {
- Log.i("TaxiConnectionListener", "連接關閉");
- // 關閉連接
- XmppConnection.getInstance().closeConnection();
- // 重連服務器
- tExit = new Timer();
- tExit.schedule(new timetask(), logintime);
- }
- @Override
- public void connectionClosedOnError(Exception e) {
- Log.i("TaxiConnectionListener", "連接關閉異常");
- // 判斷為帳號已被登錄
- boolean error = e.getMessage().equals("stream:error (conflict)");
- if (!error) {
- // 關閉連接
- XmppConnection.getInstance().closeConnection();
- // 重連服務器
- tExit = new Timer();
- tExit.schedule(new timetask(), logintime);
- }
- }
- class timetask extends TimerTask {
- @Override
- public void run() {
- username = Utils.getInstance().getSharedPreferences("taxicall",
- "account", MainActivity.context);
- password = Utils.getInstance().getSharedPreferences("taxicall",
- "password", MainActivity.context);
- if (username != null && password != null) {
- Log.i("TaxiConnectionListener", "嘗試登錄");
- // 連接服務器
- if (XmppConnection.getInstance().login(username, password)) {
- Log.i("TaxiConnectionListener", "登錄成功");
- } else {
- Log.i("TaxiConnectionListener", "重新登錄");
- tExit.schedule(new timetask(), logintime);
- }
- }
- }
- }
- @Override
- public void reconnectingIn(int arg0) {
- }
- @Override
- public void reconnectionFailed(Exception arg0) {
- }
- @Override
- public void reconnectionSuccessful() {
- }
- }
其次就是給連接設置監聽器了,最好放在登錄方法裏,關閉連接方法裏移除監聽
- // 添加連接監聽
- TaxiConnectionListener connectionListener = new TaxiConnectionListener();
- getConnection().addConnectionListener(connectionListener);
- connection.removeConnectionListener(connectionListener);