android/android_api/base/src/main/java/org/iotivity/ca/CaBtPairingInterface.java

   1 /******************************************************************
   2  *
   3  * Copyright 2016 Samsung Electronics All Rights Reserved.
   4  *
   5  *
   6  *
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  *
  19  ******************************************************************/
  20
  21 package org.iotivity.ca;
  22
  23 import android.bluetooth.BluetoothAdapter;
  24 import android.bluetooth.BluetoothDevice;
  25 import android.content.BroadcastReceiver;
  26 import android.content.Context;
  27 import android.content.Intent;
  28 import android.content.IntentFilter;
  29
  30 public class CaBtPairingInterface {
  31     private static Context mContext;
  32
  33     private CaBtPairingInterface(Context context) {
  34         synchronized(CaBtPairingInterface.class) {
  35             mContext = context;
  36         }
  37         registerIntentFilter();
  38     }
  39
  40     private static IntentFilter registerIntentFilter() {
  41         IntentFilter filter = new IntentFilter();
  42         filter.addAction(BluetoothAdapter.ACTION_STATE_CHANGED);
  43         filter.addAction(BluetoothDevice.ACTION_BOND_STATE_CHANGED);
  44         filter.addAction(BluetoothDevice.ACTION_FOUND);
  45         mContext.registerReceiver(mReceiver, filter);
  46         return filter;
  47     }
  48
  49     public static void destroyEdrInterface() {
  50         mContext.unregisterReceiver(mReceiver);
  51     }
  52
  53     private native static void oicEdrStateChangedCallback(int state);
  54
  55     private native static void oicEdrBondStateChangedCallback(String addr);
  56
  57     private native static void oicEdrFoundDeviceCallback(BluetoothDevice device);
  58
  59     private static final BroadcastReceiver mReceiver = new BroadcastReceiver() {
  60
  61         @Override
  62         public void onReceive(Context context, Intent intent) {
  63
  64             String action = intent.getAction();
  65
  66             if (action != null && action.equals(BluetoothDevice.ACTION_FOUND)) {
  67                 BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
  68
  69                 // if found device is not paired with this device
  70                 if (device.getBondState() != BluetoothDevice.BOND_BONDED)
  71                 {
  72                     oicEdrFoundDeviceCallback(device);
  73                 }
  74             }
  75
  76             if (action != null && action.equals(BluetoothAdapter.ACTION_STATE_CHANGED)) {
  77
  78                 int state =
  79                         intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, BluetoothAdapter.ERROR);
  80
  81                 // STATE_ON:12, STATE_OFF:10
  82                 if (state == BluetoothAdapter.STATE_ON || state == BluetoothAdapter.STATE_OFF)
  83                 {
  84                     oicEdrStateChangedCallback(state);
  85                 }
  86             }
  87
  88             if (action != null && action.equals(BluetoothDevice.ACTION_BOND_STATE_CHANGED)) {
  89
  90                 int bondState = intent.getIntExtra(BluetoothDevice.EXTRA_BOND_STATE,
  91                                                    BluetoothDevice.ERROR);
  92
  93                 // unpairing event
  94                 if (bondState == BluetoothDevice.BOND_NONE) {
  95                     if ((intent.getIntExtra(BluetoothDevice.EXTRA_PREVIOUS_BOND_STATE,
  96                                             BluetoothDevice.ERROR)
  97                                                 == BluetoothDevice.BOND_BONDED)) {
  98                         BluetoothDevice device
  99                             = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
 100
 101                         oicEdrBondStateChangedCallback(device.getAddress());
 102                     }
 103                 }
 104             }
 105         }
 106     };
 107 }