Hi,
I'm would like to connect to android phones with raw sockets but i
can't get it to work. I use the following simple code...
[android activity server]
package org.androidapp.threadserver;
import java.io.IOException;
import java.net.*;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
public class Server extends Activity {
/** Called when the activity is first created. */
TextView tv;
ServerSocket ss;
Socket s;
int port = 20000;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
tv = (TextView) findViewById(R.id.info);
Thread thread = new Thread(new Runnable() {
public void run() {
try {
ss = new ServerSocket(port);
tv.setText("Server listening on port "+
port +"...\n");
s = ss.accept();
tv.append("Connection established!\n");
// TODO Server-side logic
ss.close();
s.close();
tv.append("Connection closed.");
} catch (IOException e) {
// TODO Auto-generated catch block
tv.setText(e.toString());
}
}
});
thread.start();
}
}
[android activity client]
package org.androidapp.threadclient;
import java.io.IOException;
import java.net.*;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
public class Client extends Activity {
/** Called when the activity is first created. */
TextView tv;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
tv = (TextView)findViewById(R.id.info);
}
public void onStart(){
super.onStart();
Thread thread = new Thread(new Runnable() {
public void run() {
try {
Socket s = new Socket("10.0.2.2",10000);
s.getKeepAlive();
tv.setText("Connection established!\n");
// TODO Client-side logic
s.close();
tv.append("Connection closed.\n");
} catch (IOException e) {
// TODO Auto-generated catch block
tv.setText(e.toString());
}
}
});
thread.start();
}
}
I always get the server activity to stop unexpectedly. what am i doing
wrong? could anyone show me some simple android code for establishing
a tcp socket connection between two android's?
Thank you for the help.
Gonzalo.
pd. i do add tcp redirection (redir add tcp:10000:20000). the client
seems to connect but that make the server stop unexpectedly.
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