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POHow to keep bluetooth activity active
 

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  1. POHow to keep bluetooth activity active
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    <p>In my application, I am using <a href="http://bazaar.launchpad.net/~janos-gyerik/bluetoothviewer/main/files" rel="nofollow">Janos Gyerik's BluetoothViewer</a> code to connect via Bluetooth. </p> <p>I also have a <code>TCPServer</code> Class to connect via USB. </p> <pre><code>public void connectViaUSB() { if (GlobalVariables.connectionstatus == 0) { mTCPServer = new TCPServer(2222, getCurrentActivity()); mTCPServer.start(); mTCPServer.setResponseReceivedListener(this); } </code></pre> <p>The problem is, <code>BluetoothViewer</code> is written as an <code>Activity</code>. One needs to start the activity to connect, but when I switch to another activity connection is lost. </p> <p>I need to either keep that activity up all the time, or find a way to modify it. How can I fix this situation?</p> <p><strong>EDIT</strong> </p> <p>`<br> public class MyService extends Service {</p> <pre><code>private static final String TAG = "MyService"; @Override public IBinder onBind(Intent intent) { return null; } @Override public void onCreate() { Toast.makeText(this, "My Service Created", Toast.LENGTH_LONG).show(); Log.d(TAG, "onCreate"); BluetoothAdapter mAdapter = BluetoothAdapter.getDefaultAdapter(); mAdapter.enable(); BluetoothChatService mChatService = new BluetoothChatService(mHandler); BluetoothDevice device = BluetoothAdapter.getDefaultAdapter().getRemoteDevice("00:12:11:13:19:26"); mChatService.connect(device); } @Override public void onDestroy() { Toast.makeText(this, "My Service Stopped", Toast.LENGTH_LONG).show(); //stop thread } @Override public void onStart(Intent intent, int startid) { Toast.makeText(this, "My Service Started", Toast.LENGTH_LONG).show(); Log.d(TAG, "onStart"); //start thread (again) } </code></pre> <p>}` </p> <p>How can I make the Bluetooth connection from this Service Class? It requires me to move mHandler and I did. Now I'm getting RuntimeException: Unable to create .MyService: NullPointerException</p>
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