Conexão bluetooth

michetti · Junho 17, 2015, 4:25pm

Boa tarde galera!

Estou tentando fazer uma conexão no android com o bletooth mas não estou conseguindo depois de tudo que li creio que o problema seja no UUID, mas não consigo resolve-lo.
Por isso peço ajuda de vocês!

Obrigado.

[code]package com.example.eugenio.chuveiroeconomico;

import android.annotation.TargetApi;
import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothSocket;
import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.os.ParcelUuid;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

import com.example.eugenio.chuveiroeconomico.util.SystemUiHider;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.reflect.Method;
import java.util.UUID;

/**

An example full-screen activity that shows and hides the system UI (i.e.
status bar and navigation/system bar) with user interaction.

@see SystemUiHider
*/
public class ChuveiroEconomico extends Activity {

private static final boolean AUTO_HIDE = true;
private static final int AUTO_HIDE_DELAY_MILLIS = 3000;
private static final boolean TOGGLE_ON_CLICK = true;
private static final int HIDER_FLAGS = SystemUiHider.FLAG_HIDE_NAVIGATION;
private SystemUiHider mSystemUiHider;

private static final String TAG = “bluetooth1”;

Button btnOn, btnOff;
Handler h;
TextView tvRecebido;

final int RECIEVE_MESSAGE = 1; // Status for Handler
private BluetoothAdapter btAdapter = null;
private BluetoothSocket btSocket = null;
private StringBuilder sb = new StringBuilder();
private ConnectedThread mConnectedThread;

// 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 = “20:14:05:15:32:00”;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_chuveiro_economico);

 final View controlsView = findViewById(R.id.fullscreen_content_controls);
 final View contentView = findViewById(R.id.fullscreen_content);

 // Set up an instance of SystemUiHider to control the system UI for
 // this activity.
 mSystemUiHider = SystemUiHider.getInstance(this, contentView, HIDER_FLAGS);
 mSystemUiHider.setup();
 mSystemUiHider
         .setOnVisibilityChangeListener(new SystemUiHider.OnVisibilityChangeListener() {
             // Cached values.
             int mControlsHeight;
             int mShortAnimTime;

             @Override
             @TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2)
             public void onVisibilityChange(boolean visible) {
                 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
                     // If the ViewPropertyAnimator API is available
                     // (Honeycomb MR2 and later), use it to animate the
                     // in-layout UI controls at the bottom of the
                     // screen.
                     if (mControlsHeight == 0) {
                         mControlsHeight = controlsView.getHeight();
                     }
                     if (mShortAnimTime == 0) {
                         mShortAnimTime = getResources().getInteger(
                                 android.R.integer.config_shortAnimTime);
                     }
                     controlsView.animate()
                             .translationY(visible ? 0 : mControlsHeight)
                             .setDuration(mShortAnimTime);
                 } else {
                     // If the ViewPropertyAnimator APIs aren't
                     // available, simply show or hide the in-layout UI
                     // controls.
                     controlsView.setVisibility(visible ? View.VISIBLE : View.GONE);
                 }

                 if (visible && AUTO_HIDE) {
                     // Schedule a hide().
                     delayedHide(AUTO_HIDE_DELAY_MILLIS);
                 }
             }
         });

 // Set up the user interaction to manually show or hide the system UI.
 contentView.setOnClickListener(new View.OnClickListener() {
     @Override
     public void onClick(View view) {
         if (TOGGLE_ON_CLICK) {
             mSystemUiHider.toggle();
         } else {
             mSystemUiHider.show();
         }
     }
 });

 // Upon interacting with UI controls, delay any scheduled hide()
 // operations to prevent the jarring behavior of controls going away
 // while interacting with the UI.
 findViewById(R.id.dummy_button).setOnTouchListener(mDelayHideTouchListener);
 tvRecebido = (TextView) findViewById(R.id.textoRecebido);      // for display the received data from the Arduino

 h = new Handler() {
     public void handleMessage(android.os.Message msg) {
         switch (msg.what) {
             case RECIEVE_MESSAGE:                                                   // if receive massage
                 byte[] readBuf = (byte[]) msg.obj;
                 String strIncom = new String(readBuf, 0, msg.arg1);                 // create string from bytes array
                 sb.append(strIncom);                                                // append string
                 int endOfLineIndex = sb.indexOf("\r\n");                            // determine the end-of-line
                 if (endOfLineIndex > 0) {                                            // if end-of-line,
                     String sbprint = sb.substring(0, endOfLineIndex);               // extract string
                     sb.delete(0, sb.length());                                      // and clear
                     tvRecebido.setText("Data from Arduino: " + sbprint);            // update TextView
                 }
                 //Log.d(TAG, "...String:"+ sb.toString() +  "Byte:" + msg.arg1 + "...");
                 break;
         }
     }

     ;
 };
 btAdapter = BluetoothAdapter.getDefaultAdapter();       // get Bluetooth adapter
 checkBTState();

}

private BluetoothSocket createBluetoothSocket(BluetoothDevice device) throws IOException {
if (Build.VERSION.SDK_INT >= 10) {
ParcelUuid list[] = device.getUuids();
try {
final Method m = device.getClass().getMethod(“createInsecureRfcommSocketToServiceRecord”, new Class[]{UUID.class});
device.getClass().getMethod()
return (BluetoothSocket) m.invoke(device, list[0]);
} catch (Exception e) {
Log.e(TAG, “Could not create Insecure RFComm Connection”, e);
}
}
return device.createRfcommSocketToServiceRecord(MY_UUID);
}

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 class ConnectedThread extends Thread {
private final InputStream mmInStream;
private final OutputStream mmOutStream;

 public ConnectedThread(BluetoothSocket socket) {
     InputStream tmpIn = null;
     OutputStream tmpOut = null;

     // Get the input and output streams, using temp objects because
     // member streams are final
     try {
         tmpIn = socket.getInputStream();
         tmpOut = socket.getOutputStream();
     } catch (IOException e) {
     }

     mmInStream = tmpIn;
     mmOutStream = tmpOut;
 }

 public void run() {
     byte[] buffer = new byte[256];  // buffer store for the stream
     int bytes; // bytes returned from read()

     // Keep listening to the InputStream until an exception occurs
     while (true) {
         try {
             // Read from the InputStream
             bytes = mmInStream.read(buffer);        // Get number of bytes and message in "buffer"
             h.obtainMessage(RECIEVE_MESSAGE, bytes, -1, buffer).sendToTarget();     // Send to message queue Handler
         } catch (IOException e) {
             break;
         }
     }
 }

 /* Call this from the main activity to send data to the remote device */
 public void write(String message) {
     Log.d(TAG, "...Data to send: " + message + "...");
     byte[] msgBuffer = message.getBytes();
     try {
         mmOutStream.write(msgBuffer);
     } catch (IOException e) {
         Log.d(TAG, "...Error data send: " + e.getMessage() + "...");
     }
 }

}

@Override
protected void onPause() {
super.onPause();
Log.d(TAG, “…In onPause()…”);

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

}

@Override
protected 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 e) {
     errorExit("Fatal Error", "In onResume() and socket create failed: " + e.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...");

 mConnectedThread = new ConnectedThread(btSocket);
 mConnectedThread.start();

}

@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);

 // Trigger the initial hide() shortly after the activity has been
 // created, to briefly hint to the user that UI controls
 // are available.
 delayedHide(100);

}

/**

Touch listener to use for in-layout UI controls to delay hiding the
system UI. This is to prevent the jarring behavior of controls going away
while interacting with activity UI.
*/
View.OnTouchListener mDelayHideTouchListener = new View.OnTouchListener() {
@Override
public boolean onTouch(View view, MotionEvent motionEvent) {
if (AUTO_HIDE) {
delayedHide(AUTO_HIDE_DELAY_MILLIS);
}
return false;
}
};

Handler mHideHandler = new Handler();
Runnable mHideRunnable = new Runnable() {
@Override
public void run() {
mSystemUiHider.hide();
}
};

/**

Schedules a call to hide() in [delay] milliseconds, canceling any
previously scheduled calls.
*/
private void delayedHide(int delayMillis) {
mHideHandler.removeCallbacks(mHideRunnable);
mHideHandler.postDelayed(mHideRunnable, delayMillis);
}
}
[/code]

Onde eu creio que seja o erro.

private BluetoothSocket createBluetoothSocket(BluetoothDevice device) throws IOException { if (Build.VERSION.SDK_INT >= 10) { try { final Method m = device.getClass().getMethod("createInsecureRfcommSocketToServiceRecord", 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); }

06-17 13:11:34.355 7460-7460/com.example.eugenio.chuveiroeconomico D/bluetooth1﹕ ...Connecting... 06-17 13:11:34.355 7460-7460/com.example.eugenio.chuveiroeconomico D/BluetoothUtils﹕ isSocketAllowedBySecurityPolicy start : device null 06-17 13:11:34.355 7460-7460/com.example.eugenio.chuveiroeconomico W/BluetoothAdapter﹕ getBluetoothService() called with no BluetoothManagerCallback 06-17 13:11:34.355 7460-7460/com.example.eugenio.chuveiroeconomico D/BluetoothSocket﹕ connect(), SocketState: INIT, mPfd: {ParcelFileDescriptor: FileDescriptor[50]} 06-17 13:11:41.995 7460-7460/com.example.eugenio.chuveiroeconomico D/bluetooth1﹕ ...Create Socket... 06-17 13:11:41.995 7460-7460/com.example.eugenio.chuveiroeconomico D/BluetoothUtils﹕ isSocketAllowedBySecurityPolicy start : device null 06-17 13:11:42.005 7460-7460/com.example.eugenio.chuveiroeconomico D/BluetoothUtils﹕ isSocketAllowedBySecurityPolicy start : device null

Conexão bluetooth

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