// Called when services have been discovered on the remote device.
 // It seems to be necessary to wait for this discovery to occur before
 // manipulating any services or characteristics.
 @Override
 public void onServicesDiscovered(BluetoothGatt gatt, int status) {
   super.onServicesDiscovered(gatt, status);
   if (status == BluetoothGatt.GATT_SUCCESS) {
     // writeLine("Service discovery completed!");
   } else {
     // writeLine("Service discovery failed with status: " + status);
   }
   // Save reference to each characteristic.
   tx = gatt.getService(UART_UUID).getCharacteristic(TX_UUID);
   rx = gatt.getService(UART_UUID).getCharacteristic(RX_UUID);
   // Setup notifications on RX characteristic changes (i.e. data received).
   // First call setCharacteristicNotification to enable notification.
   if (!gatt.setCharacteristicNotification(rx, true)) {
     // writeLine("Couldn't set notifications for RX characteristic!");
   }
   // Next update the RX characteristic's client descriptor to enable notifications.
   if (rx.getDescriptor(CLIENT_UUID) != null) {
     BluetoothGattDescriptor desc = rx.getDescriptor(CLIENT_UUID);
     desc.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
     if (!gatt.writeDescriptor(desc)) {
       // writeLine("Couldn't write RX client descriptor value!");
     }
   } else {
     // writeLine("Couldn't get RX client descriptor!");
   }
 }
Пример #2
0
  /**
   * Enables or disables notification on a give characteristic.
   *
   * @param characteristic Characteristic to act on.
   * @param enabled If true, enable notification. False otherwise.
   */
  public void setCharacteristicNotification(
      BluetoothGattCharacteristic characteristic, boolean enabled) {
    if (mBluetoothAdapter == null || mBluetoothGatt == null) {
      Log.w(TAG, "BluetoothAdapter not initialized");
      return;
    }
    mBluetoothGatt.setCharacteristicNotification(characteristic, enabled);

    // This is specific to Heart Rate Measurement.
    if (UUID_HEART_RATE_MEASUREMENT.equals(characteristic.getUuid())) {
      BluetoothGattDescriptor descriptor =
          characteristic.getDescriptor(
              UUID.fromString(SampleGattAttributes.CLIENT_CHARACTERISTIC_CONFIG));
      descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
      mBluetoothGatt.writeDescriptor(descriptor);
    }

    // specific for pm2.5
    if (UUID_FFE0.equals(characteristic.getUuid())) {
      BluetoothGattDescriptor descriptor =
          characteristic.getDescriptor(
              UUID.fromString(SampleGattAttributes.CLIENT_CHARACTERISTIC_CONFIG));
      descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
      mBluetoothGatt.writeDescriptor(descriptor);
    }
  }
Пример #3
0
 public void enableNotification(int index, UUID service, UUID characteristic) {
   BluetoothGattService Service;
   BluetoothGattCharacteristic Characteristic;
   BluetoothGattDescriptor Descriptor;
   if (index < 0 || index > mBluetoothGatt.length) {
     Log.e(TAG, "Read char index out of bound");
     return;
   }
   if (mBluetoothGatt[index] == null) {
     Log.e(TAG, "GATT isn't connected");
     return;
   }
   if (service != null && characteristic != null) {
     Service = mBluetoothGatt[index].getService(service);
     if (Service == null) {
       Log.e(TAG, "Service not found");
       return;
     }
     Characteristic = Service.getCharacteristic(characteristic);
     if (Characteristic == null) {
       Log.e(TAG, "Characteristic not found");
       return;
     }
     mBluetoothGatt[index].setCharacteristicNotification(Characteristic, true);
     Descriptor = Characteristic.getDescriptor(CCCD);
     Descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
     mBluetoothGatt[index].writeDescriptor(Descriptor);
     Log.i(TAG, "CCCD set");
   }
 }
Пример #4
0
  private static boolean setCharacteristicNotification(
      BluetoothGatt bluetoothGatt, BluetoothGattCharacteristic characteristic, boolean enabled) {
    if (bluetoothGatt == null) {
      Log.w(TAG, "BluetoothAdapter not initialized");
      return false;
    }

    bluetoothGatt.setCharacteristicNotification(characteristic, enabled);

    try {
      BluetoothGattDescriptor descriptor = characteristic.getDescriptor(UUID.fromString(UUIDDes));
      if (descriptor != null) {
        descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
        return (bluetoothGatt.writeDescriptor(descriptor));
      } else {
        Log.e(TAG, "descriptor is null");
        return false;
      }
    } catch (NullPointerException e) {
      e.printStackTrace();
    } catch (IllegalArgumentException e) {
      e.printStackTrace();
    }

    return true;
  }
Пример #5
0
    @Override
    public final void onCharacteristicChanged(
        final BluetoothGatt gatt, final BluetoothGattCharacteristic characteristic) {
      final String data = ParserUtils.parse(characteristic);

      if (isBatteryLevelCharacteristic(characteristic)) {
        Logger.i(
            mLogSession,
            "Notification received from " + characteristic.getUuid() + ", value: " + data);
        final int batteryValue =
            characteristic.getIntValue(BluetoothGattCharacteristic.FORMAT_UINT8, 0);
        Logger.a(mLogSession, "Battery level received: " + batteryValue + "%");
        mCallbacks.onBatteryValueReceived(batteryValue);
      } else {
        final BluetoothGattDescriptor cccd =
            characteristic.getDescriptor(CLIENT_CHARACTERISTIC_CONFIG_DESCRIPTOR_UUID);
        final boolean notifications =
            cccd == null
                || cccd.getValue() == null
                || cccd.getValue().length != 2
                || cccd.getValue()[0] == 0x01;

        if (notifications) {
          Logger.i(
              mLogSession,
              "Notification received from " + characteristic.getUuid() + ", value: " + data);
          onCharacteristicNotified(gatt, characteristic);
        } else { // indications
          Logger.i(
              mLogSession,
              "Indication received from " + characteristic.getUuid() + ", value: " + data);
          onCharacteristicIndicated(gatt, characteristic);
        }
      }
    }
Пример #6
0
        /*
         * Enable notification of changes on the data characteristic for each sensor
         * by writing the ENABLE_NOTIFICATION_VALUE flag to that characteristic's
         * configuration descriptor.
         */
        private void setNotifyNextSensor(BluetoothGatt gatt) {
          BluetoothGattCharacteristic characteristic;
          switch (mState) {
            case 0:
              Log.d(TAG, "Set notify on Data characteristic");
              characteristic = gatt.getService(MAIN_SERVICE).getCharacteristic(DATA_CHAR);
              break;

            default:
              // mHandler.sendEmptyMessage(MSG_DISMISS);
              Log.i(TAG, "All Sensors Enabled");
              reset();
              return;
          }

          bytesp1 = new ArrayList<>();
          bytesp2 = new ArrayList<>();
          bytesv = new ArrayList<>();

          // Enable local notifications
          gatt.setCharacteristicNotification(characteristic, true);
          // Enabled remote notifications
          BluetoothGattDescriptor desc = characteristic.getDescriptor(CONFIG_DESCRIPTOR);
          desc.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
          gatt.writeDescriptor(desc);
        }
  public void listenToCaliperMeasurements(final BluetoothGattCharacteristic characteristic) {
    if (characteristic == null) {
      Log.e(
          TAG,
          "Haven't discovered this feature yet, please wait until it has connected once, and or try disconnecting and reconnecting.");
      return;
    }

    Log.d(TAG, "Starting to listen to notifications from " + characteristic.getUuid());
    final int charaProp = characteristic.getProperties();
    if ((charaProp | BluetoothGattCharacteristic.PROPERTY_READ) > 0) {
      // If there is an active notification on a characteristic, clear
      // it first so it doesn't update the data field on the user interface.
      if (mNotifyCharacteristic != null) {
        mBluetoothLeService.setCharacteristicNotification(mNotifyCharacteristic, false);
        mNotifyCharacteristic = null;
      }
      mBluetoothLeService.readCharacteristic(characteristic);
    }
    if ((charaProp | BluetoothGattCharacteristic.PROPERTY_NOTIFY) > 0) {
      mNotifyCharacteristic = characteristic;
      mBluetoothLeService.setCharacteristicNotification(characteristic, true);

      // Set descriptor to enable notifications
      BluetoothGattDescriptor descriptor =
          characteristic.getDescriptor(
              UUID.fromString(SCalEvoBluetoothSpecifications.CLIENT_CHARACTERISTIC_CONFIG));
      if (descriptor == null) {
        Log.e(
            TAG,
            "descriptor "
                + SCalEvoBluetoothSpecifications.CLIENT_CHARACTERISTIC_CONFIG
                + "was null, looking for others.");

        List<BluetoothGattDescriptor> descriptors = characteristic.getDescriptors();
        String uuid;
        for (BluetoothGattDescriptor aDescriptor : descriptors) {
          uuid = aDescriptor.getUuid().toString();
          Log.e(TAG, "BluetoothGattDescriptor " + uuid);
          descriptor = aDescriptor;
        }
        if (descriptor == null) {
          Log.e(
              TAG,
              "Couldn't find any descriptors for this characteristic, cant enable notifications");
          return;
        } else {
          Log.e(TAG, "Trying the last descriptor to enable notifications");
        }
      }
      descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
      mBluetoothLeService.writeDescriptor(descriptor);
      Toast.makeText(this, "Ready", Toast.LENGTH_SHORT).show();
      Log.e(TAG, "Ready to read from characteristic " + characteristic.getUuid());
    }
  }
 @Permissions
 @Override
 public int getDescriptorPermissions(@NonNull UUID identifier) {
   final BluetoothGattDescriptor descriptor = wrappedCharacteristic.getDescriptor(identifier);
   if (descriptor != null) {
     final @Permissions int permissions = descriptor.getPermissions();
     return permissions;
   } else {
     return PERMISSION_NULL;
   }
 }
  private void enableNotifications(BluetoothGatt gatt, UUID serviceUuid, UUID dataUuid) {
    UUID CCC = UUID.fromString("00002902-0000-1000-8000-00805f9b34fb");

    BluetoothGattService service = gatt.getService(serviceUuid);
    BluetoothGattCharacteristic dataCharacteristic = service.getCharacteristic(dataUuid);
    gatt.setCharacteristicNotification(dataCharacteristic, true); // Enabled locally

    BluetoothGattDescriptor config = dataCharacteristic.getDescriptor(CCC);
    config.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
    gatt.writeDescriptor(config); // Enabled remotely
  }
Пример #10
0
 /**
  * Enables or disables notification on a give characteristic.
  *
  * @param characteristic Characteristic to act on.
  * @param enabled If true, enable notification. False otherwise.
  */
 public void setCharacteristicNotification(
     BluetoothGattCharacteristic characteristic, boolean enabled) {
   if (mBluetoothAdapter == null || mBluetoothGatt == null) {
     Log.w(TAG, "BluetoothAdapter not initialized");
     return;
   }
   mBluetoothGatt.setCharacteristicNotification(characteristic, enabled);
   BluetoothGattDescriptor descriptor =
       characteristic.getDescriptor(UUID.fromString(GattAttributes.CLIENT_CHARACTERISTIC_CONFIG));
   if (descriptor != null) {
     System.out.println("write descriptor");
     descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
     mBluetoothGatt.writeDescriptor(descriptor);
   }
 }
Пример #11
0
  /**
   * This method tries to enable notifications on the Battery Level characteristic.
   *
   * @param enable <code>true</code> to enable battery notifications, false to disable
   * @return true if request has been sent
   */
  public boolean setBatteryNotifications(final boolean enable) {
    final BluetoothGatt gatt = mBluetoothGatt;
    if (gatt == null) {
      return false;
    }

    final BluetoothGattService batteryService = gatt.getService(BATTERY_SERVICE);
    if (batteryService == null) return false;

    final BluetoothGattCharacteristic batteryLevelCharacteristic =
        batteryService.getCharacteristic(BATTERY_LEVEL_CHARACTERISTIC);
    if (batteryLevelCharacteristic == null) return false;

    // Check characteristic property
    final int properties = batteryLevelCharacteristic.getProperties();
    if ((properties & BluetoothGattCharacteristic.PROPERTY_NOTIFY) == 0) return false;

    gatt.setCharacteristicNotification(batteryLevelCharacteristic, enable);
    final BluetoothGattDescriptor descriptor =
        batteryLevelCharacteristic.getDescriptor(CLIENT_CHARACTERISTIC_CONFIG_DESCRIPTOR_UUID);
    if (descriptor != null) {
      if (enable) {
        descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
        Logger.a(mLogSession, "Enabling battery level notifications...");
        Logger.v(mLogSession, "Enabling notifications for " + BATTERY_LEVEL_CHARACTERISTIC);
        Logger.d(
            mLogSession,
            "gatt.writeDescriptor("
                + CLIENT_CHARACTERISTIC_CONFIG_DESCRIPTOR_UUID
                + ", value=0x01-00)");
      } else {
        descriptor.setValue(BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE);
        Logger.a(mLogSession, "Disabling battery level notifications...");
        Logger.v(mLogSession, "Disabling notifications for " + BATTERY_LEVEL_CHARACTERISTIC);
        Logger.d(
            mLogSession,
            "gatt.writeDescriptor("
                + CLIENT_CHARACTERISTIC_CONFIG_DESCRIPTOR_UUID
                + ", value=0x00-00)");
      }
      return gatt.writeDescriptor(descriptor);
    }
    return false;
  }
Пример #12
0
  /**
   * Enables or disables notification on a give characteristic.
   *
   * @param characteristic Characteristic to act on.
   * @param enabled If true, enable notification. False otherwise.
   */
  public void setCharacteristicNotification(
      BluetoothGattCharacteristic characteristic, boolean enabled) {
    if (mBluetoothAdapter == null || mBluetoothGatt == null) {
      Log.w(TAG, "BluetoothAdapter not initialized");
      return;
    }
    mBluetoothGatt.setCharacteristicNotification(characteristic, enabled);

    // This is specific to Ajna Device

    if (UUID_QUATERNERION_PACKET_CHAR.equals(characteristic.getUuid())
        || UUID_QUATERNERION_DATA_CHAR.equals(characteristic.getUuid())
        || UUID_OTHER_DATA_CHAR.equals(characteristic.getUuid())) {
      BluetoothGattDescriptor descriptor =
          characteristic.getDescriptor(
              UUID.fromString(SampleGattAttributes.CLIENT_CHARACTERISTIC_CONFIG));
      descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
      mBluetoothGatt.writeDescriptor(descriptor);
    }
  }
Пример #13
0
  // ----------------------------------------------------------------------------------------------------------------
  // Enable notification on a characteristic
  // For information only. This application uses Indication, not Notification
  public void setCharacteristicNotification(
      BluetoothGattCharacteristic characteristic, boolean enabled) {
    if (mBluetoothAdapter == null
        || mBluetoothGatt == null) { // Check that we have a GATT connection
      Log.w(TAG, "BluetoothAdapter not initialized");
      return;
    }
    mBluetoothGatt.setCharacteristicNotification(
        characteristic, enabled); // Enable notification and indication for the characteristic

    //        if (UUID_MLDP_DATA_PRIVATE_CHARACTERISTIC.equals(characteristic.getUuid())) {
    BluetoothGattDescriptor descriptor =
        characteristic.getDescriptor(
            UUID_CHARACTERISTIC_NOTIFICATION_CONFIG); // Get the descripter that enables
                                                      // notification on the server
    descriptor.setValue(
        BluetoothGattDescriptor
            .ENABLE_NOTIFICATION_VALUE); // Set the value of the descriptor to enable notification
    mBluetoothGatt.writeDescriptor(descriptor); // Write the descriptor
    //        }
  }
  private boolean enableNotification(boolean onoff, BluetoothGattCharacteristic charac) {
    if (btGatt == null) return false;

    if (!btGatt.setCharacteristicNotification(charac, onoff)) {
      System.err.println("btGatt.setCharacteristicNotification() failed");
      return false;
    }

    BluetoothGattDescriptor clientConfig = charac.getDescriptor(CCC);
    if (clientConfig == null) {
      System.err.println("clientConfig == null");
      return false;
    }

    if (onoff) {
      clientConfig.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
    } else {
      clientConfig.setValue(BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE);
    }
    return btGatt.writeDescriptor(clientConfig);
  }
Пример #15
0
  /**
   * Enables indications on given characteristic
   *
   * @return true is the request has been sent, false if one of the arguments was <code>null</code>
   *     or the characteristic does not have the CCCD.
   */
  protected final boolean enableIndications(final BluetoothGattCharacteristic characteristic) {
    final BluetoothGatt gatt = mBluetoothGatt;
    if (gatt == null || characteristic == null) return false;

    // Check characteristic property
    final int properties = characteristic.getProperties();
    if ((properties & BluetoothGattCharacteristic.PROPERTY_INDICATE) == 0) return false;

    gatt.setCharacteristicNotification(characteristic, true);
    final BluetoothGattDescriptor descriptor =
        characteristic.getDescriptor(CLIENT_CHARACTERISTIC_CONFIG_DESCRIPTOR_UUID);
    if (descriptor != null) {
      descriptor.setValue(BluetoothGattDescriptor.ENABLE_INDICATION_VALUE);
      Logger.v(mLogSession, "Enabling indications for " + characteristic.getUuid());
      Logger.d(
          mLogSession,
          "gatt.writeDescriptor("
              + CLIENT_CHARACTERISTIC_CONFIG_DESCRIPTOR_UUID
              + ", value=0x02-00)");
      return gatt.writeDescriptor(descriptor);
    }
    return false;
  }
        private void startHR() {
          BluetoothGattService mHRP = btGatt.getService(HRP_SERVICE);
          if (mHRP == null) {
            reportConnectFailed("HRP service not found!");
            return;
          }

          BluetoothGattCharacteristic mHRMcharac =
              mHRP.getCharacteristic(HEART_RATE_MEASUREMENT_CHARAC);
          if (mHRMcharac == null) {
            reportConnectFailed("HEART RATE MEASUREMENT charateristic not found!");
            return;
          }
          BluetoothGattDescriptor mHRMccc = mHRMcharac.getDescriptor(CCC);
          if (mHRMccc == null) {
            reportConnectFailed("CCC for HEART RATE MEASUREMENT charateristic not found!");
            return;
          }
          if (btGatt.readDescriptor(mHRMccc) == false) {
            reportConnectFailed("readDescriptor() is failed");
            return;
          }
          // Continue in onDescriptorRead
        }
  // This seems way too complicated
  public void registerNotify(
      UUID serviceUUID, UUID characteristicUUID, Callback success, Callback fail) {

    Log.d(LOG_TAG, "registerNotify");

    if (gatt == null) {
      fail.invoke("BluetoothGatt is null");
      return;
    }

    BluetoothGattService service = gatt.getService(serviceUUID);
    BluetoothGattCharacteristic characteristic =
        findNotifyCharacteristic(service, characteristicUUID);
    // String key = generateHashKey(serviceUUID, characteristic);

    if (characteristic != null) {
      Log.d(LOG_TAG, "characteristic ok");

      if (gatt.setCharacteristicNotification(characteristic, true)) {

        BluetoothGattDescriptor descriptor =
            characteristic.getDescriptor(UUID.fromString(CHARACTERISTIC_NOTIFICATION_CONFIG));
        if (descriptor != null) {
          Log.d(LOG_TAG, "trovato descriptor");

          // prefer notify over indicate
          if ((characteristic.getProperties() & BluetoothGattCharacteristic.PROPERTY_NOTIFY) != 0) {
            Log.d(LOG_TAG, "Characteristic " + characteristicUUID + " set NOTIFY");
            descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
          } else if ((characteristic.getProperties()
                  & BluetoothGattCharacteristic.PROPERTY_INDICATE)
              != 0) {
            Log.d(LOG_TAG, "Characteristic " + characteristicUUID + " set INDICATE");
            descriptor.setValue(BluetoothGattDescriptor.ENABLE_INDICATION_VALUE);
          } else {
            Log.d(
                LOG_TAG,
                "Characteristic "
                    + characteristicUUID
                    + " does not have NOTIFY or INDICATE property set");
          }

          if (gatt.writeDescriptor(descriptor)) {
            // Tutto ok
            Log.d(LOG_TAG, "registerNotify completato");
            success.invoke();
          } else {
            fail.invoke(
                "Failed to set client characteristic notification for " + characteristicUUID);
          }

        } else {
          fail.invoke("Set notification failed for " + characteristicUUID);
        }

      } else {
        fail.invoke("Failed to register notification for " + characteristicUUID);
      }

    } else {
      fail.invoke("Characteristic " + characteristicUUID + " not found");
    }
  }
  private void displayGattServices(List<BluetoothGattService> gattServices) {
    if (gattServices == null) return;

    for (BluetoothGattService gattService : gattServices) {
      // -----Service的字段信息-----//
      int type = gattService.getType();
      Log.e(TAG, "-->service type:" + Utils.getServiceType(type));
      Log.e(TAG, "-->includedServices size:" + gattService.getIncludedServices().size());
      Log.e(TAG, "-->service uuid:" + gattService.getUuid());

      // -----Characteristics的字段信息-----//
      List<BluetoothGattCharacteristic> gattCharacteristics = gattService.getCharacteristics();
      for (final BluetoothGattCharacteristic gattCharacteristic : gattCharacteristics) {
        Log.e(TAG, "---->char uuid:" + gattCharacteristic.getUuid());

        int permission = gattCharacteristic.getPermissions();
        Log.e(TAG, "---->char permission:" + Utils.getCharPermission(permission));

        int property = gattCharacteristic.getProperties();
        Log.e(TAG, "---->char property:" + Utils.getCharPropertie(property));

        byte[] data = gattCharacteristic.getValue();
        if (data != null && data.length > 0) {
          Log.e(TAG, "---->char value:" + Utils.bytesToHexString(data));
        }

        if (gattService.getUuid().toString().equals(UUID_KEY_SERVICE)) { // 如果是温度计的service
          // UUID_KEY_DATA是可以跟蓝牙模块串口通信的Characteristic
          if (gattCharacteristic.getUuid().toString().equals(UUID_KEY_DATA_RECIV)) {
            // 测试读取当前Characteristic数据,会触发mOnDataAvailable.onCharacteristicRead()
            mHandler.postDelayed(
                new Runnable() {
                  @Override
                  public void run() {
                    mBLE_reciv.readCharacteristic(gattCharacteristic);
                  }
                },
                500);

            // 接受Characteristic被写的通知,收到蓝牙模块的数据后会触发mOnDataAvailable.onCharacteristicWrite()
            mBLE_reciv.setCharacteristicNotification(gattCharacteristic, true);
            BluetoothGattDescriptor localBluetoothGattDescriptor =
                gattCharacteristic.getDescriptor(UUID.fromString(CCC));
            localBluetoothGattDescriptor.setValue(
                BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
            mBluetoothGatt.writeDescriptor(localBluetoothGattDescriptor);
            appState.gattCharacteristic_reciv_dianzichen = gattCharacteristic;
            // 设置数据内容
            //            			gattCharacteristic.setValue("0");
            // 往蓝牙模块写入数据
            //            			appState.mBLE_reciv_dianzichen.writeCharacteristic(gattCharacteristic);
          }

          // UUID_KEY_DATA是可以跟蓝牙模块串口通信的Characteristic
          if (gattCharacteristic.getUuid().toString().equals(UUID_KEY_DATA_SEND)) {
            // 测试读取当前Characteristic数据,会触发mOnDataAvailable.onCharacteristicRead()
            mHandler.postDelayed(
                new Runnable() {
                  @Override
                  public void run() {
                    mBLE_send.readCharacteristic(gattCharacteristic);
                    // Log.i("info", "appState.mBLE_send_dianzichen 尝试读数据");
                  }
                },
                500);

            // 接受Characteristic被写的通知,收到蓝牙模块的数据后会触发mOnDataAvailable.onCharacteristicWrite()
            mBLE_send.setCharacteristicNotification(gattCharacteristic, true);
            // 设置数据内容
            // gattCharacteristic.setValue("send data->");
            // 往蓝牙模块写入数据
            // mBLE_send.writeCharacteristic(gattCharacteristic);

            if (!appState.firstActivityRunning) {
              appState.gattCharacteristic_send_dianzichen = gattCharacteristic;

              appState.file.write2SDFromInput("inurse/", "Dianzichen.txt", appState.deviceAddress);

              Intent it = new Intent(this, DianzichenActivity.class);
              startActivityForResult(it, 0); // 配合onActivityResult,当FirstActivity退出时获得一个0值,然后自己也退出
              //            				moveTaskToBack(true); //这一句是整个程序返回桌面
              appState.firstActivityRunning = true;
            }
          }
        } // 结束 if ( gattService.getUuid().toString().equals(UUID_KEY_SERVICE) )

        // -----Descriptors的字段信息-----//
        List<BluetoothGattDescriptor> gattDescriptors = gattCharacteristic.getDescriptors();
        for (BluetoothGattDescriptor gattDescriptor : gattDescriptors) {
          Log.e(TAG, "-------->desc uuid:" + gattDescriptor.getUuid());
          int descPermission = gattDescriptor.getPermissions();
          Log.e(TAG, "-------->desc permission:" + Utils.getDescPermission(descPermission));

          byte[] desData = gattDescriptor.getValue();
          if (desData != null && desData.length > 0) {
            Log.e(TAG, "-------->desc value:" + Utils.bytesToHexString(data));
          }

          // soloman 接收的uuid要设置CCC通知enable,并回写到BluetoothGatt
          //					if (gattDescriptor.getUuid().toString().equals(CCC)){
          //						gattDescriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
          //						mBluetoothGatt.writeDescriptor(gattDescriptor);
          //					}
        }
      }
    } //
  }
Пример #19
0
  private void enableNotify() {
    BluetoothGattService service = getSupportedGattService();
    if (null == service) {
      LogUtil.info(TAG, "BluetoothGattService service is null");
      boolean isconnectok = connect();
      if (!isconnectok) {
        connect();
      }
      return;
    }
    BluetoothGattCharacteristic gattCharacteristic = null;
    switch (DEVICE_TYPE) {
      case 1:
        gattCharacteristic =
            service.getCharacteristic(UUID.fromString(BLEConstants.UUID_CHARACTERISTIC));
        break;
      case 2:
        gattCharacteristic =
            service.getCharacteristic(
                UUID.fromString(BLEConstants.UUID_BLOOD_PRESSURE_CHARACTERISTIC));
        break;
      case 3:
        gattCharacteristic =
            service.getCharacteristic(UUID.fromString(BLEConstants.UUID_BLOODSUGAR_CHARACTERISTIC));
        break;
      default:
        gattCharacteristic =
            service.getCharacteristic(UUID.fromString(BLEConstants.UUID_CHARACTERISTIC));
        break;
    }
    if (null == gattCharacteristic) {
      LogUtil.info(TAG, "BluetoothGattCharacteristic gattCharacteristic is null");
      return;
    }

    boolean bool = mBluetoothGatt.setCharacteristicNotification(gattCharacteristic, true);
    LogUtil.info(TAG, "setCharacteristicNotification:" + bool);
    BluetoothGattDescriptor descriptor = null;
    switch (DEVICE_TYPE) {
      case 1:
        descriptor =
            gattCharacteristic.getDescriptor(UUID.fromString(BLEConstants.UUID_DESCRIPTER));
      case 2:
        descriptor =
            gattCharacteristic.getDescriptor(
                UUID.fromString(BLEConstants.UUID_BLOOD_PRESSURE_DESCRIPTER));
        break;
      case 3:
        descriptor =
            gattCharacteristic.getDescriptor(
                UUID.fromString(BLEConstants.UUID_BLOODSUGAR_DESCRIPTER));
        break;

      default:
        descriptor =
            gattCharacteristic.getDescriptor(UUID.fromString(BLEConstants.UUID_DESCRIPTER));
        break;
    }
    if (null != descriptor) {
      descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
      mBluetoothGatt.writeDescriptor(descriptor);
    }
  }