问题
I am trying to make XMPP client for android using
http://davanum.wordpress.com/2007/12/31/android-just-use-smack-api-for-xmpp/
I have been facing multiple issues in it
First of all my host name and service name are both same i.e. web.vlivetech.com
Then i do not know which jar file do i ned to include in my lib folder as i previously have included
1- asmack-android-7
but it was giving me error on some classes that NoClassDefFound
then now i have removed it and included
smack-3.4.1-0cec571.jar
but it is giving me error
NetworkOnMainThread
Here is my code for XMPPClient
public class XMPPClient extends Activity {
private ArrayList<String> messages = new ArrayList();
private Handler mHandler = new Handler();
private SettingsDialog mDialog;
private EditText mRecipient;
private EditText mSendText;
private ListView mList;
private XMPPConnection connection;
/**
* Called with the activity is first created.
*/
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.activity_xmppclient);
mRecipient = (EditText) this.findViewById(R.id.recipient);
mSendText = (EditText) this.findViewById(R.id.sendText);
mList = (ListView) this.findViewById(R.id.listMessages);
setListAdapter();
// Dialog for getting the xmpp settings
mDialog = new SettingsDialog(this);
// Set a listener to show the settings dialog
Button setup = (Button) this.findViewById(R.id.setup);
setup.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
mHandler.post(new Runnable() {
public void run() {
mDialog.show();
}
});
}
});
// Set a listener to send a chat text message
Button send = (Button) this.findViewById(R.id.send);
send.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
String to = mRecipient.getText().toString();
String text = mSendText.getText().toString();
Log.i("XMPPClient", "Sending text [" + text + "] to [" + to + "]");
Message msg = new Message(to, Message.Type.chat);
msg.setBody(text);
connection.sendPacket(msg);
messages.add(connection.getUser() + ":");
messages.add(text);
setListAdapter();
}
});
}
/**
* Called by Settings dialog when a connection is establised with the XMPP server
*
* @param connection
*/
public void setConnection
(XMPPConnection
connection) {
this.connection = connection;
if (connection != null) {
// Add a packet listener to get messages sent to us
PacketFilter filter = new MessageTypeFilter(Message.Type.chat);
connection.addPacketListener(new PacketListener() {
public void processPacket(Packet packet) {
Message message = (Message) packet;
if (message.getBody() != null) {
String fromName = StringUtils.parseBareAddress(message.getFrom());
Log.i("XMPPClient", "Got text [" + message.getBody() + "] from [" + fromName + "]");
messages.add(fromName + ":");
messages.add(message.getBody());
// Add the incoming message to the list view
mHandler.post(new Runnable() {
public void run() {
setListAdapter();
}
});
}
}
}, filter);
}
}
private void setListAdapter
() {
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.two_line_list_item,
messages);
mList.setAdapter(adapter);
}
}
and here is the code for SettingsDiologue
public class SettingsDialog extends Dialog implements android.view.View.OnClickListener {
private XMPPClient xmppClient;
public SettingsDialog(XMPPClient xmppClient) {
super(xmppClient);
this.xmppClient = xmppClient;
}
protected void onStart() {
super.onStart();
setContentView(R.layout.settings);
getWindow().setFlags(4, 4);
setTitle("XMPP Settings");
Button ok = (Button) findViewById(R.id.ok);
ok.setOnClickListener(this);
}
public void onClick(View v) {
String host = "web.vlivetech.com"; //getText(R.id.host);
String port = "5222"; //getText(R.id.port);
String service = "web.vlivetech.com"; //getText(R.id.service);
String username = "khubaib"; //getText(R.id.userid);
String password = "khubaib"; //getText(R.id.password);
// Create a connection
ConnectionConfiguration connConfig =
new ConnectionConfiguration(host, Integer.parseInt(port));
XMPPConnection connection = new XMPPConnection(connConfig);
try {
connection.connect();
Log.i("XMPPClient", "[SettingsDialog] Connected to " + connection.getHost());
} catch (XMPPException ex) {
Log.e("XMPPClient", "[SettingsDialog] Failed to connect to " + connection.getHost());
xmppClient.setConnection(null);
}
try {
connection.login(username, password);
Log.i("XMPPClient", "Logged in as " + connection.getUser());
// Set the status to available
Presence presence = new Presence(Presence.Type.available);
connection.sendPacket(presence);
xmppClient.setConnection(connection);
} catch (XMPPException ex) {
Log.e("XMPPClient", "[SettingsDialog] Failed to log in as " + username);
xmppClient.setConnection(null);
}
dismiss();
}
private String getText(int id) {
EditText widget = (EditText) this.findViewById(id);
return widget.getText().toString();
}
Am i missing something? or is there really problem with the jar file? any suggestions?
Here is the latest error Log
03-06 16:11:22.055: E/AndroidRuntime(6196): FATAL EXCEPTION: main
03-06 16:11:22.055: E/AndroidRuntime(6196): android.os.NetworkOnMainThreadException
03-06 16:11:22.055: E/AndroidRuntime(6196): at android.os.StrictMode$AndroidBlockGuardPolicy.onNetwork(StrictMode.java:1108)
03-06 16:11:22.055: E/AndroidRuntime(6196): at java.net.InetAddress.lookupHostByName(InetAddress.java:391)
03-06 16:11:22.055: E/AndroidRuntime(6196): at java.net.InetAddress.getAllByNameImpl(InetAddress.java:242)
03-06 16:11:22.055: E/AndroidRuntime(6196): at java.net.InetAddress.getByName(InetAddress.java:295)
03-06 16:11:22.055: E/AndroidRuntime(6196): at java.net.InetSocketAddress.<init>(InetSocketAddress.java:105)
03-06 16:11:22.055: E/AndroidRuntime(6196): at java.net.InetSocketAddress.<init>(InetSocketAddress.java:90)
03-06 16:11:22.055: E/AndroidRuntime(6196): at org.jivesoftware.smack.proxy.DirectSocketFactory.createSocket(DirectSocketFactory.java:45)
03-06 16:11:22.055: E/AndroidRuntime(6196): at org.jivesoftware.smack.XMPPConnection.connectUsingConfiguration(XMPPConnection.java:557)
03-06 16:11:22.055: E/AndroidRuntime(6196): at org.jivesoftware.smack.XMPPConnection.connect(XMPPConnection.java:1010)
03-06 16:11:22.055: E/AndroidRuntime(6196): at com.example.test.SettingsDialog.onClick(SettingsDialog.java:46)
03-06 16:11:22.055: E/AndroidRuntime(6196): at android.view.View.performClick(View.java:3574)
03-06 16:11:22.055: E/AndroidRuntime(6196): at android.view.View$PerformClick.run(View.java:14293)
03-06 16:11:22.055: E/AndroidRuntime(6196): at android.os.Handler.handleCallback(Handler.java:605)
03-06 16:11:22.055: E/AndroidRuntime(6196): at android.os.Handler.dispatchMessage(Handler.java:92)
03-06 16:11:22.055: E/AndroidRuntime(6196): at android.os.Looper.loop(Looper.java:137)
03-06 16:11:22.055: E/AndroidRuntime(6196): at android.app.ActivityThread.main(ActivityThread.java:4448)
03-06 16:11:22.055: E/AndroidRuntime(6196): at java.lang.reflect.Method.invokeNative(Native Method)
03-06 16:11:22.055: E/AndroidRuntime(6196): at java.lang.reflect.Method.invoke(Method.java:511)
03-06 16:11:22.055: E/AndroidRuntime(6196): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:823)
03-06 16:11:22.055: E/AndroidRuntime(6196): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:590)
03-06 16:11:22.055: E/AndroidRuntime(6196): at dalvik.system.NativeStart.main(Native Method)
UPDATED LOG FILE AFTER IMPLEMENTING THE WAY SUGGESTED BY NAVEEN
03-06 17:08:26.235: E/AndroidRuntime(12037): FATAL EXCEPTION: AsyncTask #1
03-06 17:08:26.235: E/AndroidRuntime(12037): java.lang.RuntimeException: An error occured while executing doInBackground()
03-06 17:08:26.235: E/AndroidRuntime(12037): at android.os.AsyncTask$3.done(AsyncTask.java:278)
03-06 17:08:26.235: E/AndroidRuntime(12037): at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273)
03-06 17:08:26.235: E/AndroidRuntime(12037): at java.util.concurrent.FutureTask.setException(FutureTask.java:124)
03-06 17:08:26.235: E/AndroidRuntime(12037): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307)
03-06 17:08:26.235: E/AndroidRuntime(12037): at java.util.concurrent.FutureTask.run(FutureTask.java:137)
03-06 17:08:26.235: E/AndroidRuntime(12037): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:208)
03-06 17:08:26.235: E/AndroidRuntime(12037): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
03-06 17:08:26.235: E/AndroidRuntime(12037): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
03-06 17:08:26.235: E/AndroidRuntime(12037): at java.lang.Thread.run(Thread.java:856)
03-06 17:08:26.235: E/AndroidRuntime(12037): Caused by: java.lang.NullPointerException
03-06 17:08:26.235: E/AndroidRuntime(12037): at com.example.test.NetworkOperation.doInBackground(NetworkOperation.java:33)
03-06 17:08:26.235: E/AndroidRuntime(12037): at com.example.test.NetworkOperation.doInBackground(NetworkOperation.java:1)
回答1:
You need to connect to Internet other that main thread i.e AsyncTask or any Thread.
If you run the network operation on main thread then you can get NetworkOnMainThreadException
// Button click
public void onClick(View v) {
new NetworkOperation().execute();
dialog.dismiss();
}
private class NetworkOperation extends AsyncTask<String, Void, String> {
@Override
protected String doInBackground(String... urls) {
String host = "web.vlivetech.com"; //getText(R.id.host);
String port = "5222"; //getText(R.id.port);
String service = "web.vlivetech.com"; //getText(R.id.service);
String username = "khubaib"; //getText(R.id.userid);
String password = "khubaib"; //getText(R.id.password);
// Create a connection
ConnectionConfiguration connConfig =
new ConnectionConfiguration(host, Integer.parseInt(port));
XMPPConnection connection = new XMPPConnection(connConfig);
try {
connection.connect();
Log.i("XMPPClient", "[SettingsDialog] Connected to " + connection.getHost());
} catch (XMPPException ex) {
Log.e("XMPPClient", "[SettingsDialog] Failed to connect to " + connection.getHost());
xmppClient.setConnection(null);
}
try {
connection.login(username, password);
Log.i("XMPPClient", "Logged in as " + connection.getUser());
// Set the status to available
Presence presence = new Presence(Presence.Type.available);
connection.sendPacket(presence);
xmppClient.setConnection(connection);
} catch (XMPPException ex) {
Log.e("XMPPClient", "[SettingsDialog] Failed to log in as " + username);
xmppClient.setConnection(null);
}
return null;
}
@Override
protected void onPostExecute(String result) {
}
}
回答2:
This exception is thrown when an application attempts to perform a networking operation on its main thread. Run your code in AsyncTask. and get this asmack-android-8-0.8.3.jar file to put in your libs. Suggestion: Why don't you write a service for XMPP ?
来源：https://stackoverflow.com/questions/22223022/xmpp-and-android