Maybe you should close the Bluetooth connection before opening it again?
On Tuesday, November 27, 2012 12:34:32 AM UTC-6, Antonis Kanaris wrote:
>
> Hello.I try this code
>
> package com.example.timer1;
> ;
>
> public class ReadWebArduino1 extends Activity {
>
> TextView txt;
>
> Handler handler = new Handler();
>
>
> @Override
> public void onCreate(Bundle savedInstanceState) {
> super.onCreate(savedInstanceState);
> setContentView(R.layout.activity_main);
> txt=(TextView)findViewById(R.id.txt);
> myLabel = (TextView)findViewById(R.id.label);
> }
>
> private class DownloadWebPageTask extends AsyncTask<String, Void,
> String> {
> @Override
> protected String doInBackground(String... urls) {
> String response = "";
> for (String url : urls) {
> DefaultHttpClient client = new DefaultHttpClient();
> HttpGet httpGet = new HttpGet(url);
> try {
> HttpResponse execute = client.execute(httpGet);
> InputStream content = execute.getEntity().getContent();
>
> BufferedReader buffer = new BufferedReader(new
> InputStreamReader(content));
> String s = "";
> while ((s = buffer.readLine()) != null) {
> response += s;
> }
>
> } catch (Exception e) {
> e.printStackTrace();
> }
> }
> return response;
> }
>
> @Override
> protected void onPostExecute(String result) {
> txt.setText(result);
> }
> }
>
> public void readWebpage(View view) {
>
> DownloadWebPageTask task = new DownloadWebPageTask();
> task.execute(new String[] { "http://www.site.net/LEDstate.txt";
> });
>
> }
>
>
> protected void onStart() {
> super.onStart();
> runnable.run();
> }
>
> private Runnable runnable = new Runnable()
> {
>
> public void run()
> {
>
> DownloadWebPageTask task = new DownloadWebPageTask();
> task.execute(new String[] { "http://www.site.net/LEDstate.txt";
> });
> try
> {
> findBT();
> openBT();
> sendData();
> }
> catch (IOException ex) { }
>
> handler.postDelayed(this, 10000);//Refresh page time is 10secs
> }
> };
>
> void findBT()
> {
> mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
> if(mBluetoothAdapter == null)
> {
> myLabel.setText("No bluetooth adapter available");
> }
>
> if(!mBluetoothAdapter.isEnabled())
> {
> Intent enableBluetooth = new
> Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
> startActivityForResult(enableBluetooth, 0);
> }
>
> Set<BluetoothDevice> pairedDevices =
> mBluetoothAdapter.getBondedDevices();
> if(pairedDevices.size() > 0)
> {
> for(BluetoothDevice device : pairedDevices)
> {
> if(device.getName().equals("HC-07"))
> {
> mmDevice = device;
> break;
> }
> }
> }
> myLabel.setText("Bluetooth Device Found");
> }
>
> void openBT() throws IOException
> {
> UUID uuid =
> UUID.fromString("00001101-0000-1000-8000-00805f9b34fb"); //Standard
> SerialPortService ID
> mmSocket =
> mmDevice.createRfcommSocketToServiceRecord(uuid);
> mmSocket.connect();
> mmOutputStream = mmSocket.getOutputStream();
> //mmInputStream = mmSocket.getInputStream();
>
> // beginListenForData();
>
> myLabel.setText("Bluetooth Opened");
> }
>
> void sendData() throws IOException
> {
> //String msg = myTextbox.getText().toString();
> String msg="H";
> msg += "\n";
> mmOutputStream.write(msg.getBytes());
> myLabel.setText("Data Sent");
> }
>
>
> }
>
> my problem is bt data no loop(work only the first time) and how sent the
> web data to msg variable for out to bt.Thanks.
>
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