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POAndroid Thread and class behavior question
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copied!<p>The project i am working on needs this type of behavior. The user will be presented with a UI that will give them the option to connect and disconnect to a server. I would also like this UI to show the status of the connection, 'connected or disconnected'. Whenever the user clicks connect, the application will start a thread that handles the connection to the server. The user will still be looking at the main UI. When they start that connection and while the connection remains, i would like the status of the connection to be 'connected'. If the connection is ever broken at any point i would like it to display disconnected. Listed below is what i have so far.</p> <p>My question is... Am i doing the threading right? So that the phone will not be crushed by the server connection while it is connected?</p> <p>Also, how do i get the main UI to reflect the connection status of the server and display when the connection is broken?</p> <p>Thanks in advance! If you have any further questions, please let me know.</p> <pre><code>The server connection thread. public class ConnectDevice implements Runnable { private boolean connected; private ObjectInputStream ois; public void run() { try { InetAddress host = InetAddress.getByName("192.168.234.1"); Socket socket = new Socket(host.getHostName(), 7777); connected = true; while (connected) { try { ois = new ObjectInputStream(socket.getInputStream()); String message = (String) ois.readObject(); System.out.println("Message: " + message); } catch (Exception e) { e.printStackTrace(); } } ois.close(); } catch (UnknownHostException e) { e.printStackTrace(); connected = false; } catch (IOException e) { e.printStackTrace(); connected = false; } /*catch (ClassNotFoundException e) { e.printStackTrace(); connected = false; }*/ } } The main UI and main class. public class SmartApp extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.intro); final Button firstTimeButton = (Button) findViewById(R.id.firstTimeButton); firstTimeButton.setOnClickListener( new View.OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub Intent userCreationIntent = new Intent(v.getContext(), UserCreation.class); startActivityForResult(userCreationIntent, 0); } }); final Button connectDeviceButton = (Button) findViewById(R.id.connectDeviceButton); connectDeviceButton.setOnClickListener( new View.OnClickListener() { @Override public void onClick(View v) { // TODO Auto-generated method stub //Intent connectDeviceIntent = new Intent(v.getContext(), ConnectDevice.class); //startActivityForResult(connectDeviceIntent, 0); Thread cThread = new Thread(new ConnectDevice()); cThread.start(); } }); } } </code></pre>

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