【发布时间】：2015-04-10 05:28:05
【问题描述】：
我正在为我的应用程序使用 aSmack 和 Openfire。和 Spark 进行测试。
我正在编写我的连接代码和广播接收器，它们在 STICKY 服务中监听网络状态。
当我关闭 wifi 时，互联网会关闭，但 Spark 仍将我显示为“可用”，3-4 分钟后它会将我的状态变为“不可用”。
我尝试了 xmppConnection.disconnect() 和 Presence.Type.unavailable。但没有一个为我工作。
如何在断开客户端的互联网连接后立即断开 XMPP 服务器/发送状态“不可用”？
这是我的代码：
// Connect XMPP Server
public void connectXMPPServer() {
Thread t = new Thread(new Runnable() {
@Override
public void run() {
// Create a connection
ConnectionConfiguration connConfig = new ConnectionConfiguration(
HOST, PORT, SERVICE);
connConfig.setReconnectionAllowed(true);
xmppConnection = new XMPPConnection(connConfig);
try {
xmppConnection.connect();
Log.i("XMPPChatDemoActivity", "Connected to "
+ xmppConnection.getHost());
} catch (XMPPException ex) {
Log.e("XMPPChatDemoActivity", "Failed to connect to "
+ xmppConnection.getHost());
Log.e("XMPPChatDemoActivity", ex.toString());
}
try {
if (xmppConnection.isConnected()) {
xmppConnection.login(USERNAME, PASSWORD);
Log.i("XMPPChatDemoActivity", "Logged in as "
+ xmppConnection.getUser());
Presence presence = new Presence(
Presence.Type.available);
xmppConnection.sendPacket(presence);
}
} catch (XMPPException ex) {
Log.e("XMPPChatDemoActivity", "Failed to log in as "
+ USERNAME);
Log.e("XMPPChatDemoActivity", ex.toString());
}
}
});
t.start();
}
// Broadcast receiver; listens to network state
public BroadcastReceiver networkStateReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
try {
if (isNetworkOn()) {
Log.i("BackgroundService-BroadcastReceiver",
"Network is on");
connectXMPPServer();
} else if (!isNetworkOn()) {
Log.i("BackgroundService-BroadcastReceiver",
"Network is off");
Presence presence = new Presence(Presence.Type.unavailable);
xmppConnection.sendPacket(presence);
xmppConnection.disconnect();
}
} catch (Exception e) {
Log.e("BackgroundService-networkStateReceiver", e.toString());
}
}
};
// Returns network state
public boolean isNetworkOn() {
ConnectivityManager connMngr = (ConnectivityManager) getApplicationContext()
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo netInfo = connMngr.getActiveNetworkInfo();
return (netInfo != null && netInfo.isConnected());
}
【问题讨论】：
-
互联网连接断开后，您的数据包不会传送/到达服务器，因此它会持续显示在服务器上。使用 ping-pong 进行端到端连接，30 秒后从服务器连续发送 ping 到客户端。如果 ping 未从服务器接收，则设置该用户不可用
标签： android xmpp asmack disconnect