Java Code Examples for android.bluetooth.BluetoothAdapter#getDefaultAdapter()

@Override
public void handleUpdateState(Object state, Object arg) {
    mState.visible = true;
    mState.booleanValue = false;

    BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();

    int btState = adapter == null ? BluetoothAdapter.ERROR : adapter.getState();
    if (isInErrorState(btState)) {
        mState.label = mGbContext.getString(R.string.qs_tile_bt_tethering_error);
        mState.icon = mGbContext.getDrawable(R.drawable.ic_qs_bt_tethering_off);
    } else if (btState == BluetoothAdapter.STATE_TURNING_ON ||
            btState == BluetoothAdapter.STATE_TURNING_OFF) {
        mState.label = "---";
        mState.icon = mGbContext.getDrawable(R.drawable.ic_qs_bt_tethering_off);
    } else if (btState == BluetoothAdapter.STATE_ON && isTetheringOn()) {
        mState.label = mGbContext.getString(R.string.qs_tile_bt_tethering_on);
        mState.icon = mGbContext.getDrawable(R.drawable.ic_qs_bt_tethering_on);
        mState.booleanValue = true;
    } else {
        mState.label = mGbContext.getString(R.string.qs_tile_bt_tethering_off);
        mState.icon = mGbContext.getDrawable(R.drawable.ic_qs_bt_tethering_off);
    }

    super.handleUpdateState(state, arg);
}
 

public void ready() {

    // onStart
    final BluetoothAdapter btAdapter = BluetoothAdapter.getDefaultAdapter();

    // onResume
    // get Bluetooth device
    mPreRequisites = btAdapter != null && btAdapter.isEnabled();
    if (!mPreRequisites) {
      mPreRequisites = btAdapter != null && btAdapter.enable();
    }

    if (!mPreRequisites) {
      sendDeviceStatus(EVENTNAME_BT_STATUS, "disabled");
    } else {
      sendDeviceStatus(EVENTNAME_BT_STATUS, "ready");
    }

    sendDeviceStatus(EVENTNAME_OBD_STATUS, "disconnected");
  }
 

public void startbt() {
    mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
    if (mBluetoothAdapter == null) {
        // Device does not support Bluetooth
        mkmsg("This device does not support bluetooth");
        return;
    }
    //make sure bluetooth is enabled.
    if (!mBluetoothAdapter.isEnabled()) {
        mkmsg("There is bluetooth, but turned off");
        Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
        startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
    } else {
        mkmsg("The bluetooth is ready to use.");
        //bluetooth is on, so list paired devices from here.
        querypaired();
    }
}
 

@Override
protected void onResume() {
    super.onResume();
    BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
    if (bluetoothAdapter != null) {
        isBluetoothAdapterEnabled = bluetoothAdapter.isEnabled();
    } else {
        isBluetoothAdapterEnabled = false;
    }

    if (!isBluetoothAdapterEnabled) {
        showEnableBluetoothAdapterBar();
    }

    if (!isLocationEnabled()) {
        showLocationDisabledBar();
    } else {
        hideLocationDisabledBar();
    }

    IntentFilter filter = new IntentFilter(BluetoothAdapter.ACTION_STATE_CHANGED);
    registerReceiver(bluetoothAdapterStateChangeListener, filter);
}
 

@SuppressLint("MissingPermission")
boolean isBluetoothActuallyAvailable(){
    BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
    if(adapter == null || !adapter.isEnabled() ){
        //False positive
        return false;
    }
    if(android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH ){
        int state = adapter.getProfileConnectionState(BluetoothProfile.A2DP);
        if(state != BluetoothAdapter.STATE_CONNECTING && state != BluetoothAdapter.STATE_CONNECTED){
            //False positive
            return false;
        }
    }

    return true;
}
 

public BCLServiceBase(final Activity activity) {
    mActivity = activity;
    mBtAdapter = BluetoothAdapter.getDefaultAdapter();

    // Check enable bluetooth
    if ((mBtAdapter == null) || (!mBtAdapter.isEnabled())) {
        Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
        activity.startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT);
    }

    Set<BluetoothDevice> pairedDevices = mBtAdapter.getBondedDevices();
    if (pairedDevices.size() > 0) {
        for (BluetoothDevice device : pairedDevices) {
            mPairedDevices.add(device);
        }
    }
}
 

public BroadcomBle(BleService service) {
	mService = service;
	mBtAdapter = BluetoothAdapter.getDefaultAdapter();
	if (mBtAdapter == null) {
		mService.bleNoBtAdapter();
		return;
	}
	BluetoothGattAdapter.getProfileProxy(mService, mProfileServiceListener,
			BluetoothGattAdapter.GATT);
}
 

private void initBluetooth() {
    mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
    if (mBluetoothAdapter == null) {
        finish();
        return;
    }
    if (!mBluetoothAdapter.isEnabled()) {
        Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
        startActivityForResult(enableBtIntent, 2333);
    }
}
 

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

    bluetoothAdapter=BluetoothAdapter.getDefaultAdapter();

    initUI();
}
 

private void reDiscover(boolean clearCachedDiscoveries) {
    if (BluetoothAdapter.getDefaultAdapter() != null && !BluetoothAdapter.getDefaultAdapter().isEnabled()) {
        return;
    }

    startDiscovery(discovery,clearCachedDiscoveries);
}
 

private void stopDetection() {
  if (BluetoothAdapter.getDefaultAdapter() != null) {
    try {
      context.unregisterReceiver(bluetoothStateReceiver);
    } catch (IllegalArgumentException e) {
      if (RxCentralLogger.isError()) {
        RxCentralLogger.error("stopDetection - Unregister receiver failed!");
      }
    }
  }

  bluetoothEnabledRelay.accept(Capability.UNSUPPORTED);
}
 

@Nullable
private static BluetoothInfoModel extractBluetoothInfo(DeviceInfoHelper deviceInfoHelper) {
    BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
    return bluetoothAdapter == null
            ? null
            : new BluetoothInfoModel(deviceInfoHelper.toBluetoothStateString(bluetoothAdapter.getState()));
}
 

public BluetoothBackendHelper(Context context, Listener listener){
    super(context);
    if (listener == null)
        throw new IllegalArgumentException("listener must not be null");
    this.listener = listener;
    this.bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
    bluetoothBroadcastFilter.addAction(BluetoothDevice.ACTION_FOUND);
    bluetoothBroadcastFilter.addAction(BluetoothAdapter.ACTION_DISCOVERY_STARTED);
    bluetoothBroadcastFilter.addAction(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
}
 

public void connectBluetooth() {
    mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();

    if (!mBluetoothAdapter.isEnabled()) {
        Toast.makeText(this, "Enable Bluetooth and pair", Toast.LENGTH_LONG).show();
        return;
    }
    BluetoothDevice device = mBluetoothAdapter.getRemoteDevice("98:D3:31:30:3B:D8");
    for (BluetoothDevice x : mBluetoothAdapter.getBondedDevices()) {
        Log.d("Main", "Address: " + x.getAddress());
        for (ParcelUuid uuid : x.getUuids()) {
            Log.d("Main", "parceluuid:" + uuid.toString());
        }
    }
    try {
        mBluetoothAdapter.cancelDiscovery();

        BluetoothSocket socket = device.createRfcommSocketToServiceRecord(UUID.fromString("00001101-0000-1000-8000-00805f9b34fb"));
        socket.connect();

        mRobotScheduler = new RobotScheduler(socket.getInputStream(), socket.getOutputStream(), 10);
        Toast.makeText(this, "Connected to arduino", Toast.LENGTH_SHORT).show();

        mMapper = new SlightlyMoreAdvancedMapper();

    } catch (IOException e) {
        Log.d("Main", "Exception connecting to bluetooth: ", e);
    }
}
 

/**
 * ペアリング済みのBluetooth機器一覧を取得する
 * @return Bluetoothに対応していないまたは無効なら空set
 */
@NonNull
public static Set<BluetoothDevice> getBondedDevices() {
	final BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
	return ((adapter != null) && adapter.isEnabled()) ? adapter.getBondedDevices() : Collections.emptySet();
}
 

public static BluetoothAdapter getBluetoothAdapter() {
    if (mBluetoothAdapter == null) {
        mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
    }
    return mBluetoothAdapter;
}
 

@Provides
@Nullable
static BluetoothAdapter provideBluetoothAdapter() {
    return BluetoothAdapter.getDefaultAdapter();
}
 

public BluetoothService(Context context, Handler handler) {
    mAdapter = BluetoothAdapter.getDefaultAdapter();
    mState = BluetoothState.STATE_NONE;
    mHandler = handler;
}
 

private BluetoothAdapter getBluetoothAdapter(){
    if (bluetoothAdapter == null){
        bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
    }
    return bluetoothAdapter;
}
 

/**
 * Connects to the remote BluetoothDevice (server).
 * It bootstraps the connection to the paired (bonded) device BluetoothDevice if exists.<br>
 * The function does return immediately, when the connection process is yet in progress, with no result.<br>
 * You can receive a notification when the connection process is completed attaching a BluetoothHelperListener.
 * As an alternative you can check the connection status with the isConnected() method described below.<br>
 * An onBluetoothHelperConnectionStateChanged event occurs (if listener is attached) when the connection process terminates, returning the new status of the connection.
 * In case of success, the class will be ready to communicate with the remote device.
 * @param bluetoothDevice The remote BluetoothDevice
 * @see android.bluetooth.BluetoothAdapter
 * @see android.bluetooth.BluetoothAdapter#getBondedDevices()
 * @see android.bluetooth.BluetoothDevice
 */
public void Connect(BluetoothDevice bluetoothDevice) {
    Log.w("myApp", "[ # ] Connect(BluetoothDevice bluetoothDevice)");
    mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();                                       // Find adapter
    if ((mBluetoothAdapter != null) && (bluetoothDevice != null)) {
        if (isConnected()) Disconnect(false);
        mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();                               // Find adapter
        if (mBluetoothAdapter.isEnabled()) {                                                    // Adapter found
            CT = new ConnectThread(bluetoothDevice);
            CT.start();
        }
    }
}