Pls see the documentation for the solution: http://developer.android.com/resources/faq/commontasks.html#threading
On 16 October 2010 18:58, chcat <[email protected]> wrote: > I have an Activity with TextView that I am trying to update from > different thread. To do that i pass TextView to the "updater" thread > onCreate(..) > .. > txtStatus = (TextView)this.findViewById(R.id.status); > // start udp server as separate thread and pass TextView to that > thread to print text messages from udp socket > > new Thread(new TelemetryServer(txtStatus)).start(); > //see thread code below > > > As a result i have thread error, even though "updater" is > synchronized: > ERROR/UDP(282): android.view.ViewRoot$CalledFromWrongThreadException: > Only the original thread that created a view hierarchy can touch its > views. > Any other ideas how to solve this problem? > Tnank you, > -V > > > public class TelemetryServer implements Runnable { > public static final String SERVERIP = "127.0.0.1"; // 'Within' the > emulator! > public static final int SERVERPORT = 2222; > private TextView m_view; > private DatagramSocket socket; > private boolean loop; > private synchronized void update( String msg) > { > m_view.append("\n"); > m_view.append(msg); > } > > public TelemetryServer(TextView _view) > { > m_view = _view; > loop = true; > } > public void run() { > try { > InetAddress serverAddr = > InetAddress.getByName(SERVERIP); > Log.d("UDP", "S: Connecting..."); > > socket = new DatagramSocket(SERVERPORT, > serverAddr); > Log.i("TelemetryServer", "started"); > while(loop) { > byte[] buf = new byte[1024]; > DatagramPacket packet = new > DatagramPacket(buf, buf.length); > socket.receive(packet); > update(new > String(packet.getData())); > } > > } catch (Exception e) { > > Log.e("UDP", "S: Error", e); > > } // end of try > Log.d("UDP", "S: Done."); > socket.close(); > } > } > > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected]<android-developers%[email protected]> > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
