I am trying to update TextView in my Activity with text messages from
DatagramServer ( see below)
The problem I have is that "backgound UDP server receives plenty of
traffic, but onProgessUpdate is ever executed only once so only the
first of the messages appear in the TextView
Any idea what is my error here would be appreciated...
public class MyActivity extends Activity {
TextView txtStatus;
// txtStatus initialized
new BackgroundAsyncTask().execute();
public class BackgroundAsyncTask extends
AsyncTask<Void, String, Void> {
public static final String SERVERIP = "127.0.0.1"; // 'Within'
the
emulator!
public static final int SERVERPORT = 2222;
private DatagramSocket socket;
protected Void doInBackground(Void... params)
{
try {
InetAddress serverAddr =
InetAddress.getByName(SERVERIP);
Log.d("UDP", "S: Waiting for connection...");
socket = new DatagramSocket(SERVERPORT,
serverAddr);
while(true)
{
byte[] buf = new byte[1024];
DatagramPacket packet = new
DatagramPacket(buf, buf.length);
Log.i("telemetry server", " waiting for
packet");
socket.receive(packet);
Log.i("received", new
Integer(packet.getLength()).toString());
Log.i("UDPServer received:", new
String(packet.getData()));
publishProgress(new
String(packet.getData()));
}
} catch (Exception e) {
Log.i("Dbg server", e.getMessage());
} // end of try
Log.i("Dbg server", "Dbg server: Done.");
socket.close();
return null;
}
@Override
protected void onPostExecute(Void result) {
// TODO Auto-generated method stub
//it will never been shown in this exercise...
}
@Override
protected void onPreExecute() {
// TODO Auto-generated method stub
}
@Override
protected void onProgressUpdate(String... values) {
txtStatus.append(values[0] + "\n");
}
}
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