Android Open Source - GizwitsBLE Android Ble






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License

The source code is released under:

Apache License

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Java Source Code

/**
 * This XPG software is supplied to you by Xtreme Programming Group, Inc.
 * ("XPG") in consideration of your agreement to the following terms, and your
 * use, installation, modification or redistribution of this XPG software
 * constitutes acceptance of these terms.? If you do not agree with these terms,
 * please do not use, install, modify or redistribute this XPG software.
 * //from  www  . j a va  2s  . c  o m
 * In consideration of your agreement to abide by the following terms, and
 * subject to these terms, XPG grants you a non-exclusive license, under XPG's
 * copyrights in this original XPG software (the "XPG Software"), to use and
 * redistribute the XPG Software, in source and/or binary forms; provided that
 * if you redistribute the XPG Software, with or without modifications, you must
 * retain this notice and the following text and disclaimers in all such
 * redistributions of the XPG Software. Neither the name, trademarks, service
 * marks or logos of XPG Inc. may be used to endorse or promote products derived
 * from the XPG Software without specific prior written permission from XPG.?
 * Except as expressly stated in this notice, no other rights or licenses,
 * express or implied, are granted by XPG herein, including but not limited to
 * any patent rights that may be infringed by your derivative works or by other
 * works in which the XPG Software may be incorporated.
 * 
 * The XPG Software is provided by XPG on an "AS IS" basis.? XPG MAKES NO
 * WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
 * WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE, REGARDING THE XPG SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
 * COMBINATION WITH YOUR PRODUCTS.
 * 
 * IN NO EVENT SHALL XPG BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION
 * AND/OR DISTRIBUTION OF THE XPG SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER
 * THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR
 * OTHERWISE, EVEN IF XPG HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 * ABOUT XPG: Established since June 2005, Xtreme Programming Group, Inc. (XPG)
 * is a digital solutions company based in the United States and China. XPG
 * integrates cutting-edge hardware designs, mobile applications, and cloud
 * computing technologies to bring innovative products to the marketplace. XPG's
 * partners and customers include global leading corporations in semiconductor,
 * home appliances, health/wellness electronics, toys and games, and automotive
 * industries. Visit www.xtremeprog.com for more information.
 * 
 * Copyright (C) 2013 Xtreme Programming Group, Inc. All Rights Reserved.
 */

package com.xtremeprog.sdk.ble;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;

import org.apache.commons.codec.binary.Hex;

import android.annotation.SuppressLint;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothGatt;
import android.bluetooth.BluetoothGattCallback;
import android.bluetooth.BluetoothGattCharacteristic;
import android.bluetooth.BluetoothGattDescriptor;
import android.bluetooth.BluetoothGattService;
import android.bluetooth.BluetoothManager;
import android.bluetooth.BluetoothProfile;
import android.content.Context;
import android.content.pm.PackageManager;
import android.util.Log;

import com.xtremeprog.sdk.ble.BleRequest.RequestType;

@SuppressLint("NewApi")
public class AndroidBle implements IBle, IBleRequestHandler {

  protected static final String TAG = "blelib";

  private BleService mService;
  private BluetoothAdapter mBtAdapter;
  private Map<String, BluetoothGatt> mBluetoothGatts;
  // private BTQuery btQuery;

  private BluetoothAdapter.LeScanCallback mLeScanCallback = new BluetoothAdapter.LeScanCallback() {
    @Override
    public void onLeScan(final BluetoothDevice device, int rssi,
        byte[] scanRecord) {
      mService.bleDeviceFound(device, rssi, scanRecord,
          BleService.DEVICE_SOURCE_SCAN);
    }
  };

  private BluetoothGattCallback mGattCallback = new BluetoothGattCallback() {
    @Override
    public void onConnectionStateChange(BluetoothGatt gatt, int status,
        int newState) {
      String address = gatt.getDevice().getAddress();
      Log.d(TAG, "onConnectionStateChange " + address + " status "
          + status + " newState " + newState);
      if (status != BluetoothGatt.GATT_SUCCESS) {
        disconnect(address);
        mService.bleGattDisConnected(address);
        return;
      }

      if (newState == BluetoothProfile.STATE_CONNECTED) {
        mService.bleGattConnected(gatt.getDevice());
        mService.addBleRequest(new BleRequest(
            RequestType.DISCOVER_SERVICE, address));
      } else if (newState == BluetoothProfile.STATE_DISCONNECTED) {
        mService.bleGattDisConnected(address);
        disconnect(address);
      }
    }

    @Override
    public void onServicesDiscovered(BluetoothGatt gatt, int status) {
      String address = gatt.getDevice().getAddress();
      Log.d(TAG, "onServicesDiscovered " + address + " status " + status);
      if (status != BluetoothGatt.GATT_SUCCESS) {
        mService.requestProcessed(address,
            RequestType.DISCOVER_SERVICE, false);
        return;
      }
      mService.bleServiceDiscovered(gatt.getDevice().getAddress());
    }

    @Override
    public void onCharacteristicRead(BluetoothGatt gatt,
        BluetoothGattCharacteristic characteristic, int status) {
      String address = gatt.getDevice().getAddress();
      Log.d(TAG, "onCharacteristicRead " + address + " status " + status);
      if (status != BluetoothGatt.GATT_SUCCESS) {
        mService.requestProcessed(address,
            RequestType.READ_CHARACTERISTIC, false);
        return;
      }
      // Log.d(TAG, "data " + characteristic.getStringValue(0));
      mService.bleCharacteristicRead(gatt.getDevice().getAddress(),
          characteristic.getUuid().toString(), status,
          characteristic.getValue());
    }

    @Override
    public void onCharacteristicChanged(BluetoothGatt gatt,
        BluetoothGattCharacteristic characteristic) {
      String address = gatt.getDevice().getAddress();
      Log.d(TAG, "onCharacteristicChanged " + address);
      Log.d(TAG, new String(Hex.encodeHex(characteristic.getValue())));
      mService.bleCharacteristicChanged(address, characteristic.getUuid()
          .toString(), characteristic.getValue());
    }

    public void onCharacteristicWrite(BluetoothGatt gatt,
        BluetoothGattCharacteristic characteristic, int status) {
      String address = gatt.getDevice().getAddress();
      Log.d(TAG, "onCharacteristicWrite " + address + " status " + status);
      if (status != BluetoothGatt.GATT_SUCCESS) {
        mService.requestProcessed(address,
            RequestType.WRITE_CHARACTERISTIC, false);
        return;
      }
      mService.bleCharacteristicWrite(gatt.getDevice().getAddress(),
          characteristic.getUuid().toString(), status);
    };

    public void onDescriptorWrite(BluetoothGatt gatt,
        BluetoothGattDescriptor descriptor, int status) {
      String address = gatt.getDevice().getAddress();
      Log.d(TAG, "onDescriptorWrite " + address + " status " + status);
      BleRequest request = mService.getCurrentRequest();
      if (request.type == RequestType.CHARACTERISTIC_NOTIFICATION
          || request.type == RequestType.CHARACTERISTIC_INDICATION
          || request.type == RequestType.CHARACTERISTIC_STOP_NOTIFICATION) {
        if (status != BluetoothGatt.GATT_SUCCESS) {
          mService.requestProcessed(address,
              RequestType.CHARACTERISTIC_NOTIFICATION, false);
          return;
        }
        if (request.type == RequestType.CHARACTERISTIC_NOTIFICATION) {
          mService.bleCharacteristicNotification(address, descriptor
              .getCharacteristic().getUuid().toString(), true,
              status);
        } else if (request.type == RequestType.CHARACTERISTIC_INDICATION) {
          mService.bleCharacteristicIndication(address, descriptor
              .getCharacteristic().getUuid().toString(), status);
        } else {
          mService.bleCharacteristicNotification(address, descriptor
              .getCharacteristic().getUuid().toString(), false,
              status);
        }
        return;
      }
    };
  };

  public AndroidBle(BleService service) {
    mService = service;
    // btQuery = BTQuery.getInstance();
    if (!mService.getPackageManager().hasSystemFeature(
        PackageManager.FEATURE_BLUETOOTH_LE)) {
      mService.bleNotSupported();
      return;
    }

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

    mBtAdapter = bluetoothManager.getAdapter();
    if (mBtAdapter == null) {
      mService.bleNoBtAdapter();
    }
    mBluetoothGatts = new HashMap<String, BluetoothGatt>();
  }

  @Override
  public void startScan() {
    mBtAdapter.startLeScan(mLeScanCallback);
  }

  @Override
  public void stopScan() {
    mBtAdapter.stopLeScan(mLeScanCallback);
  }

  @Override
  public boolean adapterEnabled() {
    if (mBtAdapter != null) {
      return mBtAdapter.isEnabled();
    }
    return false;
  }

  @Override
  public boolean connect(String address) {
    BluetoothDevice device = mBtAdapter.getRemoteDevice(address);
    BluetoothGatt gatt = device.connectGatt(mService, false, mGattCallback);
    if (gatt == null) {
      mBluetoothGatts.remove(address);
      return false;
    } else {
      // TODO: if state is 141, it can be connected again after about 15
      // seconds
      mBluetoothGatts.put(address, gatt);
      return true;
    }
  }

  @Override
  public void disconnect(String address) {
    if (mBluetoothGatts.containsKey(address)) {
      BluetoothGatt gatt = mBluetoothGatts.remove(address);
      if (gatt != null) {
        gatt.disconnect();
        gatt.close();
      }
    }
  }

  @Override
  public ArrayList<BleGattService> getServices(String address) {
    BluetoothGatt gatt = mBluetoothGatts.get(address);
    if (gatt == null) {
      return null;
    }

    ArrayList<BleGattService> list = new ArrayList<BleGattService>();
    List<BluetoothGattService> services = gatt.getServices();
    for (BluetoothGattService s : services) {
      BleGattService service = new BleGattService(s);
      // service.setInfo(btQuery.getGattServiceInfo(s.getUuid()));
      list.add(service);
    }
    return list;
  }

  @Override
  public boolean requestReadCharacteristic(String address,
      BleGattCharacteristic characteristic) {
    BluetoothGatt gatt = mBluetoothGatts.get(address);
    if (gatt == null || characteristic == null) {
      return false;
    }

    mService.addBleRequest(new BleRequest(RequestType.READ_CHARACTERISTIC,
        gatt.getDevice().getAddress(), characteristic));
    return true;
  }

  public boolean readCharacteristic(String address,
      BleGattCharacteristic characteristic) {
    BluetoothGatt gatt = mBluetoothGatts.get(address);
    if (gatt == null) {
      return false;
    }

    return gatt.readCharacteristic(characteristic.getGattCharacteristicA());
  }

  @Override
  public boolean discoverServices(String address) {
    BluetoothGatt gatt = mBluetoothGatts.get(address);
    if (gatt == null) {
      return false;
    }

    boolean ret = gatt.discoverServices();
    if (!ret) {
      disconnect(address);
    }
    return ret;
  }

  @Override
  public BleGattService getService(String address, UUID uuid) {
    BluetoothGatt gatt = mBluetoothGatts.get(address);
    if (gatt == null) {
      return null;
    }

    BluetoothGattService service = gatt.getService(uuid);
    if (service == null) {
      return null;
    } else {
      return new BleGattService(service);
    }
  }

  @Override
  public boolean requestCharacteristicNotification(String address,
      BleGattCharacteristic characteristic) {
    BluetoothGatt gatt = mBluetoothGatts.get(address);
    if (gatt == null || characteristic == null) {
      return false;
    }

    mService.addBleRequest(new BleRequest(
        RequestType.CHARACTERISTIC_NOTIFICATION, gatt.getDevice()
            .getAddress(), characteristic));
    return true;
  }

  @Override
  public boolean characteristicNotification(String address,
      BleGattCharacteristic characteristic) {
    BleRequest request = mService.getCurrentRequest();
    BluetoothGatt gatt = mBluetoothGatts.get(address);
    if (gatt == null || characteristic == null) {
      return false;
    }

    boolean enable = true;
    if (request.type == RequestType.CHARACTERISTIC_STOP_NOTIFICATION) {
      enable = false;
    }
    BluetoothGattCharacteristic c = characteristic.getGattCharacteristicA();
    if (!gatt.setCharacteristicNotification(c, enable)) {
      return false;
    }

    BluetoothGattDescriptor descriptor = c
        .getDescriptor(BleService.DESC_CCC);
    if (descriptor == null) {
      return false;
    }

    byte[] val_set = null;
    if (request.type == RequestType.CHARACTERISTIC_NOTIFICATION) {
      val_set = BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE;
    } else if (request.type == RequestType.CHARACTERISTIC_INDICATION) {
      val_set = BluetoothGattDescriptor.ENABLE_INDICATION_VALUE;
    } else {
      val_set = BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE;
    }
    if (!descriptor.setValue(val_set)) {
      return false;
    }

    return gatt.writeDescriptor(descriptor);
  }

  @Override
  public boolean requestWriteCharacteristic(String address,
      BleGattCharacteristic characteristic, String remark) {
    BluetoothGatt gatt = mBluetoothGatts.get(address);
    if (gatt == null || characteristic == null) {
      return false;
    }

    mService.addBleRequest(new BleRequest(RequestType.WRITE_CHARACTERISTIC,
        gatt.getDevice().getAddress(), characteristic, remark));
    return true;
  }

  @Override
  public boolean writeCharacteristic(String address,
      BleGattCharacteristic characteristic) {
    BluetoothGatt gatt = mBluetoothGatts.get(address);
    if (gatt == null) {
      return false;
    }

    Log.d("blelib", new String(Hex.encodeHex(characteristic.getGattCharacteristicA().getValue())));
    return gatt
        .writeCharacteristic(characteristic.getGattCharacteristicA());
  }

  @Override
  public boolean requestConnect(String address) {
    BluetoothGatt gatt = mBluetoothGatts.get(address);
    if (gatt != null && gatt.getServices().size() == 0) {
      return false;
    }

    mService.addBleRequest(new BleRequest(RequestType.CONNECT_GATT, address));
    return true;
  }

  @Override
  public String getBTAdapterMacAddr() {
    if (mBtAdapter != null) {
      return mBtAdapter.getAddress();
    }
    return null;
  }

  @Override
  public boolean requestIndication(String address,
      BleGattCharacteristic characteristic) {
    BluetoothGatt gatt = mBluetoothGatts.get(address);
    if (gatt == null || characteristic == null) {
      return false;
    }

    mService.addBleRequest(new BleRequest(
        RequestType.CHARACTERISTIC_INDICATION, gatt.getDevice()
            .getAddress(), characteristic));
    return true;
  }

  @Override
  public boolean requestStopNotification(String address,
      BleGattCharacteristic characteristic) {
    BluetoothGatt gatt = mBluetoothGatts.get(address);
    if (gatt == null || characteristic == null) {
      return false;
    }

    mService.addBleRequest(new BleRequest(
        RequestType.CHARACTERISTIC_NOTIFICATION, gatt.getDevice()
            .getAddress(), characteristic));
    return true;
  }
}




Java Source Code List

com.example.bluetooth.le.BleApplication.java
com.example.bluetooth.le.CharacteristicActivity.java
com.example.bluetooth.le.DeviceControlActivity.java
com.example.bluetooth.le.DeviceScanActivity.java
com.example.bluetooth.le.Utils.java
com.xtremeprog.sdk.ble.AndroidBle.java
com.xtremeprog.sdk.ble.BleGattCharacteristic.java
com.xtremeprog.sdk.ble.BleGattService.java
com.xtremeprog.sdk.ble.BleRequest.java
com.xtremeprog.sdk.ble.BleService.java
com.xtremeprog.sdk.ble.BroadcomBle.java
com.xtremeprog.sdk.ble.IBleRequestHandler.java
com.xtremeprog.sdk.ble.IBle.java
com.xtremeprog.sdk.ble.SamsungBle.java