Android never receives UDP packet
- by Quandary
The below code results in a timeout.
It works fine on non-Android Java. What's the matter?
//@Override
public static void run()
{
//System.out.println ( "Local Machine IP : "+addrStr.toString ( ) ) ;
HelloWorldActivity.tv.setText("Trace 1");
try
{
// Retrieve the ServerName
InetAddress serverAddr; //= InetAddress.getByName(Server.SERVERIP);
InetAddress ias[] = InetAddress.getAllByName(Server.SERVERNAME);
serverAddr = ias[0];
Log.d("UDP", "C: Connecting...");
/* Create new UDP-Socket */
DatagramSocket socket = new DatagramSocket();
/* Prepare some data to be sent. */
String strQuery="ÿÿÿÿgetservers"+" "+Server.iProtocol+" "+"'all'";
Log.d("UDP", strQuery);
//byte[] buf = ("ÿÿÿÿgetservers 68 'all'").getBytes();
byte[] buf = strQuery.getBytes();
/* Create UDP-packet with
* data & destination(url+port) */
DatagramPacket packet = new DatagramPacket(buf, buf.length, serverAddr, Server.SERVERPORT);
Log.d("UDP", "C: Sending: '" + new String(buf) + "'");
/* Send out the packet */
socket.setSoTimeout(5000);
socket.send(packet);
Log.d("UDP", "C: Sent.");
Log.d("UDP", "C: Done.");
// http://code.google.com/p/android/issues/detail?id=2917
byte[] buffer= new byte[1024*100];
DatagramPacket receivePacket = new DatagramPacket(buffer, buffer.length); //, serverAddr, Server.SERVERPORT);
socket.receive(receivePacket);
HelloWorldActivity.tv.setText("TTT");
String x = new String(receivePacket.getData());
Log.d("UDP", "C: Received: '" + x + "'");
HelloWorldActivity.tv.setText(x);
} catch (Exception e)
{
HelloWorldActivity.tv.setText(e.getMessage());
Log.e("UDP", "C: Error", e);
}
}
public class Server
{
/*
//public static java.lang.string SERVERIP;
public static String SERVERNAME = "monster.idsoftware.com";
public static String SERVERIP = "192.246.40.56";
public static int SERVERPORT = 27950;
public static int PROTOCOL = 68;
*/
//public static String SERVERNAME="monster.idsoftware.com";
public static String SERVERNAME="dpmaster.deathmask.net";
public static String SERVERIP="192.246.40.56";
public static int SERVERPORT=27950;
//public static int iProtocol= 68; // Quake3
public static int iProtocol=71; // OpenArena
}
Android manifest:
<?xml version="1.0" encoding="utf-8"?>
<use-permission id="android.permission.READ_CONTACTS" />
<use-permission android:name="android.permission.WRITE_SETTINGS" />
<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.CALL_PHONE" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_GPS" />
<uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_ASSISTED_GPS" />
<uses-permission android:name="android.permission.ACCESS_CELL_ID" />
<uses-permission android:name="android.permission.RECEIVE_SMS" />
<uses-permission android:name="android.permission.VIBRATE" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<application
android:icon="@drawable/icon"
android:label="AAA New Application"
>
<activity android:name="HelloWorldActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN"/>
<category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>
</activity>
</application>
