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POAndroid never receives UDP packet
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  1. POAndroid never receives UDP packet
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    copied!<p>The below code results in a timeout. </p> <p>It works fine on non-Android Java. What's the matter?</p> <pre><code> //@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 &amp; 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 } </code></pre> <p>Android manifest:</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; </code></pre> <p></p> <pre><code>&lt;use-permission id="android.permission.READ_CONTACTS" /&gt; &lt;use-permission android:name="android.permission.WRITE_SETTINGS" /&gt; &lt;uses-permission android:name="android.permission.READ_CONTACTS" /&gt; &lt;uses-permission android:name="android.permission.CALL_PHONE" /&gt; &lt;uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /&gt; &lt;uses-permission android:name="android.permission.ACCESS_GPS" /&gt; &lt;uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" /&gt; &lt;uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /&gt; &lt;uses-permission android:name="android.permission.INTERNET" /&gt; &lt;uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /&gt; &lt;uses-permission android:name="android.permission.ACCESS_LOCATION" /&gt; &lt;uses-permission android:name="android.permission.ACCESS_ASSISTED_GPS" /&gt; &lt;uses-permission android:name="android.permission.ACCESS_CELL_ID" /&gt; &lt;uses-permission android:name="android.permission.RECEIVE_SMS" /&gt; &lt;uses-permission android:name="android.permission.VIBRATE" /&gt; &lt;uses-permission android:name="android.permission.WAKE_LOCK" /&gt; &lt;application android:icon="@drawable/icon" android:label="AAA New Application" &gt; &lt;activity android:name="HelloWorldActivity"&gt; &lt;intent-filter&gt; &lt;action android:name="android.intent.action.MAIN"/&gt; &lt;category android:name="android.intent.category.LAUNCHER"/&gt; &lt;/intent-filter&gt; &lt;/activity&gt; &lt;/application&gt; </code></pre> <p></p>
 

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