java类android.bluetooth.BluetoothManager的实例源码

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    ButterKnife.bind(this);

    BluetoothManager bluetoothManager = (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
    // mBluetoothAdapterの取得
    mBluetoothAdapter = bluetoothManager.getAdapter();
    // mBluetoothLeScannerの初期化
    mBluetoothLeScanner = mBluetoothAdapter.getBluetoothLeScanner();

    Uri.Builder builder = new Uri.Builder();
    AsyncHttpRequest task = new AsyncHttpRequest(this);
    task.execute(builder);
    scan(true);
}

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    ButterKnife.bind(this);

    BluetoothManager bluetoothManager = (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
    // mBluetoothAdapterの取得
    mBluetoothAdapter = bluetoothManager.getAdapter();
    // mBluetoothLeScannerの初期化
    mBluetoothLeScanner = mBluetoothAdapter.getBluetoothLeScanner();

    Uri.Builder builder = new Uri.Builder();
    AsyncHttpRequest task = new AsyncHttpRequest(this);
    task.execute(builder);
    scan(true);
}

private void setupBLE() {
    if (!isBLESupported(this)) {
        Toast.makeText(this, "device not support ble", Toast.LENGTH_SHORT).show();
        finish();
        return;
    }

    BluetoothManager manager = getManager(this);
    if (manager != null) {
        mBTAdapter = manager.getAdapter();
    }
    if ((mBTAdapter == null) || (!mBTAdapter.isEnabled())) {
        Toast.makeText(this, "bluetooth not open", Toast.LENGTH_SHORT).show();
        Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
        startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
        return;
    }
}

@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // initialize the right scan callback for the current API level
    if (Build.VERSION.SDK_INT >= 21) {
        mScanCallback = new ScanCallback() {
            @Override
            public void onScanResult(int callbackType, ScanResult result) {
                super.onScanResult(callbackType, result);
                mRecyclerViewAdapter.addDevice(result.getDevice().getAddress());
            }
        };
    } else {
        mLeScanCallback = new BluetoothAdapter.LeScanCallback() {
            @Override
            public void onLeScan(BluetoothDevice bluetoothDevice, int i, byte[] bytes) {
                mRecyclerViewAdapter.addDevice(bluetoothDevice.getAddress());
            }
        };
    }

    // initialize bluetooth manager & adapter
    BluetoothManager manager = (BluetoothManager) getActivity().getSystemService(Context.BLUETOOTH_SERVICE);
    mBluetoothAdapter = manager.getAdapter();
}

static public boolean checkBluetooth(Context context){
    BluetoothManager bm = (BluetoothManager) context.getSystemService(BLUETOOTH_SERVICE);
    BluetoothAdapter ba = bm.getAdapter();
    if (ba == null) {
        //Bluetooth is disabled
        Log.e(TAG, "BluetoothAdapter not available!");
        return false;
    }

    if(!ba.isEnabled()) {
        Log.w(TAG, "BluetoothAdapter not enabled!");
        ba.enable();
    }

    if (!context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH_LE)) {
        Log.e(TAG, "Bluetooth LE is not supported");
        return false;
    }

    if(!ba.isMultipleAdvertisementSupported()){
        Log.i(TAG, "No Multiple Advertisement Support!");
    }

    return ba.isEnabled();
}

public BLEClient.BtError checkBluetooth(){
    btManager = (BluetoothManager) context.getSystemService(Context.BLUETOOTH_SERVICE);
    btAdapter = btManager.getAdapter();
    if(!context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH))
        return BLEClient.BtError.NoBluetooth;
    if(!context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH_LE))
        return BLEClient.BtError.NoBLE;
    if(btAdapter == null || !btAdapter.isEnabled())
        return BLEClient.BtError.Disabled;
    if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP && useNewMethod){
        if((ContextCompat.checkSelfPermission(context, android.Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_DENIED) &&
                (ContextCompat.checkSelfPermission(context, android.Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_DENIED)){
            return BtError.NoLocationPermission;
        }
        LocationManager lm = (LocationManager)context.getSystemService(Context.LOCATION_SERVICE);
        if(!(lm.isProviderEnabled(LocationManager.NETWORK_PROVIDER)) && !(lm.isProviderEnabled(LocationManager.GPS_PROVIDER))){
            return BtError.LocationDisabled;
        }
    }
    return BLEClient.BtError.None;
}

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    // We set the content View of this Activity
    setContentView(R.layout.activity_main);

    // Get all the TextViews
    deviceAddressTextView = (TextView) findViewById(R.id.device_address);
    actionTextView = (TextView) findViewById(R.id.action);
    rssiTextView = (TextView) findViewById(R.id.rssi);

    // Get the descriptions of the actions
    actionDescriptions = getResources().getStringArray(R.array.action_descriptions);

    // Get the BluetoothManager so we can get the BluetoothAdapter
    final BluetoothManager bluetoothManager = (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
    bluetoothAdapter = bluetoothManager.getAdapter();
}

public void onCreate(Context context, GattServerListener listener) throws RuntimeException {
    mContext = context;
    mListener = listener;

    mBluetoothManager = (BluetoothManager) context.getSystemService(BLUETOOTH_SERVICE);
    BluetoothAdapter bluetoothAdapter = mBluetoothManager.getAdapter();
    if (!checkBluetoothSupport(bluetoothAdapter)) {
        throw new RuntimeException("GATT server requires Bluetooth support");
    }

    // Register for system Bluetooth events
    IntentFilter filter = new IntentFilter(BluetoothAdapter.ACTION_STATE_CHANGED);
    mContext.registerReceiver(mBluetoothReceiver, filter);
    if (!bluetoothAdapter.isEnabled()) {
        Log.d(TAG, "Bluetooth is currently disabled... enabling");
        bluetoothAdapter.enable();
    } else {
        Log.d(TAG, "Bluetooth enabled... starting services");
        startAdvertising();
        startServer();
    }
}

private void prepareForScan() {
    if (isBleSupported()) {
        // Ensures Bluetooth is enabled on the device
        BluetoothManager btManager = (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
        BluetoothAdapter btAdapter = btManager.getAdapter();
        if (btAdapter.isEnabled()) {
            // Prompt for runtime permission
            if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
                startLeScan();
            } else {
                ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, REQUEST_PERMISSION_LOCATION);
            }
        } else {
            Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
            startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
        }
    } else {
        Toast.makeText(this, "BLE is not supported", Toast.LENGTH_LONG).show();
        finish();
    }
}

public void onCreate(Context context, String deviceAddress, OnCounterReadListener listener) throws RuntimeException {
    mContext = context;
    mListener = listener;
    mDeviceAddress = deviceAddress;

    mBluetoothManager = (BluetoothManager) context.getSystemService(BLUETOOTH_SERVICE);
    mBluetoothAdapter = mBluetoothManager.getAdapter();
    if (!checkBluetoothSupport(mBluetoothAdapter)) {
        throw new RuntimeException("GATT client requires Bluetooth support");
    }

    // Register for system Bluetooth events
    IntentFilter filter = new IntentFilter(BluetoothAdapter.ACTION_STATE_CHANGED);
    mContext.registerReceiver(mBluetoothReceiver, filter);
    if (!mBluetoothAdapter.isEnabled()) {
        Log.w(TAG, "Bluetooth is currently disabled... enabling");
        mBluetoothAdapter.enable();
    } else {
        Log.i(TAG, "Bluetooth enabled... starting client");
        startClient();
    }
}

@Override
public int onStartCommand(final Intent intent, final int flags, final int startId) {
    if (intent == null || !intent.hasExtra(EXTRA_DEVICE_ADDRESS))
        throw new UnsupportedOperationException("No device address at EXTRA_DEVICE_ADDRESS key");

    mDeviceAddress = intent.getStringExtra(EXTRA_DEVICE_ADDRESS);

    // notify user about changing the state to CONNECTING
    final Intent broadcast = new Intent(BROADCAST_CONNECTION_STATE);
    broadcast.putExtra(EXTRA_CONNECTION_STATE, STATE_CONNECTING);
    LocalBroadcastManager.getInstance(BleProfileService.this).sendBroadcast(broadcast);

    final BluetoothManager bluetoothManager = (BluetoothManager) getSystemService(BLUETOOTH_SERVICE);
    final BluetoothAdapter adapter = bluetoothManager.getAdapter();
    final BluetoothDevice device = adapter.getRemoteDevice(mDeviceAddress);
    mDeviceName = device.getName();

    mBleManager.connect(device);
    return START_REDELIVER_INTENT;
}

@Override
public int onStartCommand(final Intent intent, final int flags, final int startId) {
    if (intent == null || !intent.hasExtra(EXTRA_DEVICE_ADDRESS))
        throw new UnsupportedOperationException("No device address at EXTRA_DEVICE_ADDRESS key");

    final Uri logUri = intent.getParcelableExtra(EXTRA_LOG_URI);
    mLogSession = Logger.openSession(getApplicationContext(), logUri);
    mDeviceAddress = intent.getStringExtra(EXTRA_DEVICE_ADDRESS);

    Logger.i(mLogSession, "Service started");

    // notify user about changing the state to CONNECTING
    final Intent broadcast = new Intent(BROADCAST_CONNECTION_STATE);
    broadcast.putExtra(EXTRA_CONNECTION_STATE, STATE_CONNECTING);
    LocalBroadcastManager.getInstance(BleProfileService.this).sendBroadcast(broadcast);

    final BluetoothManager bluetoothManager = (BluetoothManager) getSystemService(BLUETOOTH_SERVICE);
    final BluetoothAdapter adapter = bluetoothManager.getAdapter();
    final BluetoothDevice device = adapter.getRemoteDevice(mDeviceAddress);
    mDeviceName = device.getName();
    onServiceStarted();

    mBleManager.connect(device);
    return START_REDELIVER_INTENT;
}

@Override
public void connect(final BluetoothDevice device) {
    // Should we use the GATT Server?
    final SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(getContext());
    final boolean useGattServer = preferences.getBoolean(ProximityActivity.PREFS_GATT_SERVER_ENABLED, true);

    if (useGattServer) {
        // Save the device that we want to connect to. First we will create a GATT Server
        mDeviceToConnect = device;

        final BluetoothManager bluetoothManager = (BluetoothManager) getContext().getSystemService(Context.BLUETOOTH_SERVICE);
        try {
            DebugLogger.d(TAG, "[Server] Starting Gatt server...");
            Logger.v(mLogSession, "[Server] Starting Gatt server...");
            openGattServer(getContext(), bluetoothManager);
            addImmediateAlertService();
            // the BluetoothGattServerCallback#onServiceAdded callback will proceed further operations
        } catch (final Exception e) {
            // On Nexus 4&7 with Android 4.4 (build KRT16S) sometimes creating Gatt Server fails. There is a Null Pointer Exception thrown from addCharacteristic method.
            Logger.e(mLogSession, "[Server] Gatt server failed to start");
            Log.e(TAG, "Creating Gatt Server failed", e);
        }
    } else {
        super.connect(device);
    }
}

/**
 * enable bluetooth
 */
private void initBluetooth() {
    //get Bluetooth service
    mBluetoothManager = (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
    //get Bluetooth Adapter
    mBluetoothAdapter = mBluetoothManager.getAdapter();
    if (mBluetoothAdapter == null) {//platform not support bluetooth
        Log.d(Tag, "Bluetooth is not support");
    }
    else{
        int status = mBluetoothAdapter.getState();
        //bluetooth is disabled
        if (status == BluetoothAdapter.STATE_OFF) {
            // enable bluetooth
            mBluetoothAdapter.enable();
        }
    }
}

/**
 * Initializes bluetooth adapter
 *
 * @return <code>true</code> if initialization was successful
 */
private boolean initialize() {
    // For API level 18 and above, get a reference to BluetoothAdapter through
    // BluetoothManager.
    final BluetoothManager bluetoothManager = (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
    if (bluetoothManager == null) {
        loge("Unable to initialize BluetoothManager.");
        return false;
    }

    mBluetoothAdapter = bluetoothManager.getAdapter();
    if (mBluetoothAdapter == null) {
        loge("Unable to obtain a BluetoothAdapter.");
        return false;
    }

    return true;
}

boolean setupBleController() {
    boolean retvalue = true;

    if(bluetoothAdapter == null) {
        final BluetoothManager bluetoothManager = (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
        bluetoothAdapter = bluetoothManager.getAdapter();
        retvalue = false;
    }

    if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP && leScanner == null) {
        if(bluetoothAdapter == null) {
            retvalue = false;
        } else {
            leScanner = bluetoothAdapter.getBluetoothLeScanner();
            if(leScanner == null)
                retvalue = false;
        }
    }
    return retvalue;
}

/**
 * Finds all bonded devices and tries to unbond it.
 */
private void unPairDevice() {
    ConnectedDevice connectedDevice = BluetoothUtils.getPairedMicrobit(this);
    String addressToDelete = connectedDevice.mAddress;
    // Get the paired devices and put them in a Set
    BluetoothAdapter mBluetoothAdapter = ((BluetoothManager) getSystemService(BLUETOOTH_SERVICE)).getAdapter();
    Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices();
    for(BluetoothDevice bt : pairedDevices) {
        logi("Paired device " + bt.getName());
        if(bt.getAddress().equals(addressToDelete)) {
            try {
                Method m = bt.getClass().getMethod("removeBond", (Class[]) null);
                m.invoke(bt, (Object[]) null);
            } catch(NoSuchMethodException | IllegalAccessException
                    | InvocationTargetException e) {
                Log.e(TAG, e.toString());
            }
        }
    }
}

public static BluetoothDevice getPairedDeviceMicroBit(Context context) {
    SharedPreferences pairedDevicePref = context.getApplicationContext().getSharedPreferences(PREFERENCES_KEY,
            Context.MODE_MULTI_PROCESS);
    if(pairedDevicePref.contains(PREFERENCES_PAIREDDEV_KEY)) {
        String pairedDeviceString = pairedDevicePref.getString(PREFERENCES_PAIREDDEV_KEY, null);
        Gson gson = new Gson();
        sConnectedDevice = gson.fromJson(pairedDeviceString, ConnectedDevice.class);
        //Check if the microbit is still paired with our mobile
        BluetoothAdapter mBluetoothAdapter = ((BluetoothManager) MBApp.getApp().getSystemService(Context
                .BLUETOOTH_SERVICE)).getAdapter();
        if(mBluetoothAdapter.isEnabled()) {
            Set<BluetoothDevice> pairedDevices = mBluetoothAdapter.getBondedDevices();
            for(BluetoothDevice bt : pairedDevices) {
                if(bt.getAddress().equals(sConnectedDevice.mAddress)) {
                    return bt;
                }
            }
        }
    }
    return null;
}

@TargetApi(18)
public void onReceive(Context context, Intent intent) {
    if (VERSION.SDK_INT >= 18) {
        if (QNApiImpl.this.mBluetoothAdapter == null) {
            BluetoothManager bluetoothManager = (BluetoothManager) QNApiImpl.this
                    .mContext.getSystemService("bluetooth");
            QNApiImpl.this.mBluetoothAdapter = bluetoothManager.getAdapter();
        }
        if (QNApiImpl.this.mBluetoothAdapter != null && !QNApiImpl.this.mBluetoothAdapter
                .isEnabled()) {
            QNApiImpl.this.bleScan.onBleClosed(QNApiImpl.this.mBluetoothAdapter);
            for (QNBleHelper bleHelper : QNApiImpl.this.helperMap.values()) {
                if (!(bleHelper == null || bleHelper.bleCallback == null)) {
                    bleHelper.bleCallback.onCompete(7);
                }
            }
        }
    }
}

public void startLeScan(String deviceName, String mac, QNBleScanCallback callback) {
    if (isAppIdReady(callback)) {
        if (this.mBluetoothAdapter == null) {
            this.mBluetoothAdapter = ((BluetoothManager) this.mContext.getSystemService
                    ("bluetooth")).getAdapter();
        }
        if (this.mBluetoothAdapter == null) {
            callback.onCompete(4);
        } else if (!this.mContext.getPackageManager().hasSystemFeature("android.hardware" +
                ".bluetooth_le")) {
            callback.onCompete(6);
        } else if (this.mBluetoothAdapter.isEnabled()) {
            this.bleScan.start(this.mBluetoothAdapter, deviceName, mac, callback);
        } else {
            callback.onCompete(7);
        }
    }
}

private boolean isBluetoothEnabled() {
    final BluetoothManager bluetoothManager = (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
    BluetoothAdapter bluetoothAdapter = bluetoothManager.getAdapter();

    if (bluetoothAdapter == null) {
        Toast.makeText(this, R.string.error_bluetooth_not_supported, Toast.LENGTH_LONG).show();
        finish();
    }

    boolean enabled = true;
    if (!bluetoothAdapter.isEnabled()) {
        enabled = false;
        Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
        startActivityForResult(enableBtIntent, ENABLE_BLUETOOTH);
    }
    return enabled;
}

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    getActionBar().setTitle(R.string.title_devices);
    mHandler = new Handler();

    // Use this check to determine whether BLE is supported on the device.  Then you can
    // selectively disable BLE-related features.
    if (!getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH_LE)) {
        Toast.makeText(this, R.string.ble_not_supported, Toast.LENGTH_SHORT).show();
        finish();
    }

    // Initializes a Bluetooth adapter.  For API level 18 and above, get a reference to
    // BluetoothAdapter through BluetoothManager.
    final BluetoothManager bluetoothManager =
            (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
    mBluetoothAdapter = bluetoothManager.getAdapter();

    // Checks if Bluetooth is supported on the device.
    if (mBluetoothAdapter == null) {
        Toast.makeText(this, R.string.error_bluetooth_not_supported, Toast.LENGTH_SHORT).show();
        finish();
        return;
    }
}

/**
 * Check if Bluetooth LE device supported on the running environment.
 *
 * @param context the context
 * @return true if supported
 */
public static boolean isBleSupported(@NonNull final Context context) {
    try {
        if (context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH_LE) == false) {
            return false;
        }

        final BluetoothManager bluetoothManager = (BluetoothManager) context.getSystemService(Context.BLUETOOTH_SERVICE);

        final BluetoothAdapter bluetoothAdapter;
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
            bluetoothAdapter = bluetoothManager.getAdapter();
        } else {
            bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
        }

        if (bluetoothAdapter != null) {
            return true;
        }
    } catch (final Throwable ignored) {
        // ignore exception
    }
    return false;
}

/**
 * Check if bluetooth function enabled
 *
 * @param context the context
 * @return true if bluetooth enabled
 */
public static boolean isBluetoothEnabled(@NonNull final Context context) {
    final BluetoothManager bluetoothManager = (BluetoothManager) context.getSystemService(Context.BLUETOOTH_SERVICE);

    if (bluetoothManager == null) {
        return false;
    }

    final BluetoothAdapter bluetoothAdapter;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
        bluetoothAdapter = bluetoothManager.getAdapter();
    } else {
        bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
    }

    if (bluetoothAdapter == null) {
        return false;
    }

    return bluetoothAdapter.isEnabled();
}

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

    mDevices = (ListView) findViewById(R.id.lv_devices);

    BluetoothManager bluetoothManager = (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
    mBluetoothAdapter = bluetoothManager.getAdapter();

    if (mBluetoothAdapter == null) {
        Toast.makeText(getApplicationContext(), "Bluetooth device unavailable!",Toast.LENGTH_SHORT).show();
        finish();
    }

    mHandler = new Handler();
}

/**
 * Start the CurrentTimeService GATT server
 * @return true if the GATT server starts successfully or is already running
 */
public static boolean startServer(Context context) {
    if (sGattServer == null) {
        BluetoothManager manager = (BluetoothManager) context.getSystemService(BLUETOOTH_SERVICE);
        CurrentTimeCallback callback = new CurrentTimeCallback();
        sGattServer = manager.openGattServer(context, callback);
        if (sGattServer == null) {
            Log.e(TAG, "Unable to start GATT server");
            return false;
        }
        sGattServer.addService(GATT_SERVICE);
        callback.setGattServer(sGattServer);
    } else {
        Log.w(TAG, "Already started");
    }
    return true;
}

@TargetApi(Build.VERSION_CODES.LOLLIPOP)
public void startAdvertise(Context context) {
    mContext = context;
    //BLE設定,Advertiser負責廣播被其他裝置搜尋,GattServer負責連線上後的資料傳輸
    BluetoothManager manager = (BluetoothManager) context.getSystemService(Context.BLUETOOTH_SERVICE);
    BluetoothAdapter adapter = manager.getAdapter();
    mAdvertiser = getAdvertiser(adapter);
    mGattServer = getGattServer(context, manager);

    Log.d(TAG, "mGattServer=>" + mGattServer);
    //初始化gatt server底下的service、service下放入Characteristic
    initService();

    //Advertiser開始
    mAdvertiser.startAdvertising(makeAdvertiseSetting(), makeAdvertiseData(), this);

}

@Inject
public BleManager(@ForApplication Context context, PreferenceManager prefsManager) {
    this.context = context;

    // the app manifest requires support for BLE, no need to check explicitly
    bluetoothManager = (BluetoothManager) context.getSystemService(Context.BLUETOOTH_SERVICE);
    bluetoothAdapter = bluetoothManager.getAdapter();
    preferenceManager = prefsManager;
    gattManager = new GattManager(prefsManager, this);

    // Beaconing
    beaconManager = org.altbeacon.beacon.BeaconManager.getInstanceForApplication(context);
    beaconManager.getBeaconParsers().clear();
    beaconManager.getBeaconParsers().add(new BeaconParser().
            setBeaconLayout("m:2-3=0215,i:4-19,i:20-21,i:22-23,p:24-24,d:25-25"));

    Timber.d("setting up background monitoring for beacons and power saving");
    Identifier id1 = Identifier.parse(ThunderBoardDevice.THUNDER_BOARD_REACT_UUID_STRING);
    Region region = new Region("backgroundRegion", id1, null, null);
    regionBootstrap = new ThunderBoardBootstrap(context, this, region);
    backgroundPowerSaver = new ThunderBoardPowerSaver(context, preferenceManager);

    beaconManager.setBackgroundBetweenScanPeriod(ThunderBoardPowerSaver.DELAY_BETWEEN_SCANS_INACTIVE);
}

@Override
public boolean load(@ValidData @NonNull BluetoothOperationData data) {
    Boolean state = data.get();
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
        BluetoothManager bluetoothManager = (BluetoothManager) context.getSystemService(Context.BLUETOOTH_SERVICE);
        BluetoothAdapter adapter = bluetoothManager.getAdapter();
        if (adapter == null) {
            Logger.w("no BluetoothAdapter");
            return true;
        }
        if (state) {
            return adapter.enable();
        } else {
            return adapter.disable();
        }
    }
    Logger.wtf("System version lower than min requirement");
    return false;
}

public boolean init(ConnectionListener connectionListener) {
    this.connectionListener = connectionListener;
    BluetoothManager bluetoothManager = (BluetoothManager) context.getSystemService(Context.BLUETOOTH_SERVICE);
    if (bluetoothManager == null) {
        Config.loge("Unable to initialize BluetoothManager.");
        return false;
    }
    bluetoothAdapter = bluetoothManager.getAdapter();
    if (bluetoothAdapter == null) {
        Config.loge("Unable to obtain a BluetoothAdapter.");
        return false;
    }
    Intent gattServiceIntent = new Intent(context, BluetoothLeService.class);
    context.bindService(gattServiceIntent, serviceConnection, Activity.BIND_AUTO_CREATE);
    Config.loge("startScan to Bind service.");
    final IntentFilter intentFilter = new IntentFilter();
    intentFilter.addAction(BluetoothLeService.ACTION_GATT_CONNECTED);
    intentFilter.addAction(BluetoothLeService.ACTION_GATT_DISCONNECTED);
    intentFilter.addAction(BluetoothLeService.ACTION_GATT_SERVICES_DISCOVERED);
    intentFilter.addAction(BluetoothLeService.ACTION_DATA_AVAILABLE);
    intentFilter.addAction(BluetoothLeService.ACTION_READ_RSSI);
    intentFilter.addAction(BluetoothLeService.ACTION_CHARACTERISTIV_WRITE);
    context.registerReceiver(mGattUpdateReceiver, intentFilter);
    return true;
}