Bluetoothアプリケーションが動作しません

Question

AndroidとArduinoの間でブルートゥースのソースが見つかりました と私はそれをコピーして貼り付けました。
コードにエラーは表示されません。
私はこれを実行しようとすると、それは問題であり、私が何をすべきどのようなメッセージ

"Fatal Error - In onResume() and an exception occureed during write : 
socket closde. Check that the SPP 
UUID:00001101-0000-1000-8000-00805f9b34fb exists on server" 

とオフtruns？ https://github.com/googlesamples/android-BluetoothChat：BluetoothChatService - - Googleからの偉大なサンプルがある

public class MainActivity extends Activity { 
private static final String TAG = "bluetooth1"; 

Button btnOn, btnOff; 

private BluetoothAdapter btAdapter = null; 
private BluetoothSocket btSocket = null; 
private OutputStream outStream = null; 

// SPP UUID service 
private static final UUID MY_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB"); 

// MAC-address of Bluetooth module (you must edit this line) 
private static String address = "00:15:FF:F2:19:5F"; 

/** Called when the activity is first created. */ 
@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 

    setContentView(R.layout.activity_main); 

    btnOn = (Button) findViewById(R.id.btnOn); 
    btnOff = (Button) findViewById(R.id.btnOff); 

    btAdapter = BluetoothAdapter.getDefaultAdapter(); 
    checkBTState(); 

    btnOn.setOnClickListener(new View.OnClickListener() { 
     public void onClick(View v) { 
      sendData("1"); 
      Toast.makeText(getBaseContext(), "Turn on LED", Toast.LENGTH_SHORT).show(); 
     } 
    }); 

    btnOff.setOnClickListener(new View.OnClickListener() { 
     public void onClick(View v) { 
      sendData("0"); 
      Toast.makeText(getBaseContext(), "Turn off LED", Toast.LENGTH_SHORT).show(); 
     } 
    }); 
} 

private BluetoothSocket createBluetoothSocket(BluetoothDevice device) throws IOException { 
    if(Build.VERSION.SDK_INT >= 10){ 
     try { 
      final Method m = device.getClass().getMethod("createRFCommSocketToServiceRecord", new Class[] { UUID.class }); 
      return (BluetoothSocket) m.invoke(device, MY_UUID); 
     } catch (Exception e) { 
      Log.e(TAG, "Could not create Insecure RFComm Connection",e); 
     } 
    } 
    return device.createRfcommSocketToServiceRecord(MY_UUID); 
} 

@Override 
public void onResume() { 
    super.onResume(); 

    Log.d(TAG, "...onResume - try connect..."); 

    // Set up a pointer to the remote node using it's address. 
    BluetoothDevice device = btAdapter.getRemoteDevice(address); 

    // Two things are needed to make a connection: 
    // A MAC address, which we got above. 
    // A Service ID or UUID. In this case we are using the 
    //  UUID for SPP. 

    try { 
     btSocket = createBluetoothSocket(device); 
    } catch (IOException e1) { 
     errorExit("Fatal Error", "In onResume() and socket create failed: " + e1.getMessage() + "."); 
    } 

    // Discovery is resource intensive. Make sure it isn't going on 
    // when you attempt to connect and pass your message. 
    btAdapter.cancelDiscovery(); 

    // Establish the connection. This will block until it connects. 
    Log.d(TAG, "...Connecting..."); 
    try { 
     btSocket.connect(); 
     Log.d(TAG, "...Connection ok..."); 
    } catch (IOException e) { 
     try { 
      btSocket.close(); 
     } catch (IOException e2) { 
      errorExit("Fatal Error", "In onResume() and unable to close socket during connection failure" + e2.getMessage() + "."); 
     } 
    } 

    // Create a data stream so we can talk to server. 
    Log.d(TAG, "...Create Socket..."); 

    try { 
     outStream = btSocket.getOutputStream(); 
    } catch (IOException e) { 
     errorExit("Fatal Error", "In onResume() and output stream creation failed:" + e.getMessage() + "."); 
    } 
} 

@Override 
public void onPause() { 
    super.onPause(); 

    Log.d(TAG, "...In onPause()..."); 

    if (outStream != null) { 
     try { 
      outStream.flush(); 
     } catch (IOException e) { 
      errorExit("Fatal Error", "In onPause() and failed to flush output stream: " + e.getMessage() + "."); 
     } 
    } 

    try  { 
     btSocket.close(); 
    } catch (IOException e2) { 
     errorExit("Fatal Error", "In onPause() and failed to close socket." + e2.getMessage() + "."); 
    } 
} 

private void checkBTState() { 
    // Check for Bluetooth support and then check to make sure it is turned on 
    // Emulator doesn't support Bluetooth and will return null 
    if(btAdapter==null) { 
     errorExit("Fatal Error", "Bluetooth not support"); 
    } else { 
     if (btAdapter.isEnabled()) { 
      Log.d(TAG, "...Bluetooth ON..."); 
     } else { 
      //Prompt user to turn on Bluetooth 
      Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE); 
      startActivityForResult(enableBtIntent, 1); 
     } 
    } 
} 

private void errorExit(String title, String message){ 
    Toast.makeText(getBaseContext(), title + " - " + message, Toast.LENGTH_LONG).show(); 
    finish(); 
} 

private void sendData(String message) { 
    byte[] msgBuffer = message.getBytes(); 

    Log.d(TAG, "...Send data: " + message + "..."); 

    try { 
     outStream.write(msgBuffer); 
    } catch (IOException e) { 
     String msg = "In onResume() and an exception occurred during write: " + e.getMessage(); 
     if (address.equals("00:00:00:00:00:00")) 
      msg = msg + ".\n\nUpdate your server address from 00:00:00:00:00:00 to the correct address on line 35 in the java code"; 
     msg = msg + ".\n\nCheck that the SPP UUID: " + MY_UUID.toString() + " exists on server.\n\n"; 

     errorExit("Fatal Error", msg); 
    } 
} 
} 

Answer 1

これは悪いコードで、あなたがそれを使用しないでください。

は、ここでソースコードです。 BluuetoothChatServiceクラスを参照してください。残念ながら、Handlerを使用して残りのアプリと通信するのに問題があります。私はそれを少し変更して、別のHandlerThreadにメッセージを投稿し、そのスレッドはユーザーによって設定されたカスタムインターフェイスを通知します（詳細はこのプロジェクトを参照してください）。https://github.com/AlexShutov/LEDLights