private void setDevice(BluetoothDevice device) {
EventBus.getDefault().post(new HeartRateEvent("Setting device: " + device.getAddress()));
if (mDevice != null
&& device != null
&& !device.getAddress().equals(mDevice.getAddress())
&& mBluetoothLeService != null) {
mBluetoothLeService.disconnect();
}
mDevice = device;
if (mDevice != null && mBluetoothLeService != null) {
mBluetoothLeService.connect(mDevice.getAddress());
removeTimers();
mTimer = new Timer();
mTimer.schedule(
new TimerTask() {
@Override
public void run() {
if (!mConnected) {
scanLeDevice(true);
}
}
},
SCAN_PERIOD);
}
}
@Override
public void onServiceDisconnected(ComponentName componentName) {
if (mBluetoothLeService != null) {
mBluetoothLeService.disconnect();
mBluetoothLeService.close();
}
mBluetoothLeService = null;
mBpm = HeartRateConstants.HEART_RATE_MONITOR_NOT_CONNECTED;
}
private void stopListening() {
EventBus.getDefault().post(new HeartRateEvent("Turning off heart rate monitor"));
mBpm = HeartRateConstants.HEART_RATE_MONITOR_NOT_CONNECTED;
mConnected = false;
mDevice = null;
mCurrentRSSI = 0;
EventBus.getDefault().post(new BlueToothLEEvent(mBpm));
scanLeDevice(false);
if (mBluetoothLeService != null) {
mBluetoothLeService.disconnect();
mBluetoothLeService.close();
}
}
@Override
public void onServiceConnected(ComponentName componentName, IBinder service) {
mBluetoothLeService = ((BluetoothLeService.LocalBinder) service).getService();
if (!mBluetoothLeService.initialize()) {
Log.e("BLE", "Unable to initialize Bluetooth");
}
scanLeDevice(true);
}
public void stop() {
scanLeDevice(false);
mConnected = false;
mDevice = null;
mCurrentRSSI = 0;
mBpm = HeartRateConstants.HEART_RATE_MONITOR_NOT_CONNECTED;
Log.d("BLE", "Stopping service");
if (mContext != null) {
mContext.unbindService(mServiceConnection);
unRegisterReceivers();
} else {
Log.d("BLE", "No Context");
}
if (mTimer != null) {
mTimer.cancel();
mTimer.purge();
} else {
Log.d("BLE", "No Timer");
}
if (mBluetoothLeService != null) {
mBluetoothLeService.disconnect();
mBluetoothLeService.close();
} else {
Log.d("BLE", "No Bluetooth Service");
}
mBluetoothLeService = null;
Log.d("BLE", "Finished ending service");
}
@Override
public void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
if (BluetoothLeService.ACTION_GATT_CONNECTED.equals(action)) {
EventBus.getDefault()
.post(new HeartRateEvent("Connected to device: " + mDevice.getAddress()));
removeTimers();
} else if (BluetoothLeService.ACTION_GATT_DISCONNECTED.equals(action)) {
EventBus.getDefault()
.post(new HeartRateEvent("Disconnected from device: " + mDevice.getAddress()));
mConnected = false;
mBpm = HeartRateConstants.HEART_RATE_MONITOR_NOT_CONNECTED;
EventBus.getDefault().post(new BlueToothLEEvent(mBpm));
scanLeDevice(true);
} else if (BluetoothLeService.ACTION_GATT_SERVICES_DISCOVERED.equals(action)) {
mConnected = true;
EventBus.getDefault().post(new HeartRateEvent("Gatt services connected"));
mBpm = 0;
EventBus.getDefault().post(new BlueToothLEEvent(mBpm));
final List<BluetoothGattService> gattServices =
mBluetoothLeService.getSupportedGattServices();
// Loops through available GATT Services.
boolean found = false;
String uuid = "";
for (BluetoothGattService gattService : gattServices) {
final List<BluetoothGattCharacteristic> gattCharacteristics =
gattService.getCharacteristics();
if (gattCharacteristics != null) {
// Loops through available Characteristics.
for (BluetoothGattCharacteristic gattCharacteristic : gattCharacteristics) {
if (gattCharacteristic != null) {
uuid = gattCharacteristic.getUuid().toString();
if (mBluetoothLeService != null
&& uuid != null
&& uuid.equals(GattAttributes.HEART_RATE_MEASUREMENT)) {
found = true;
mBluetoothLeService.setCharacteristicNotification(gattCharacteristic, true);
}
}
}
}
}
if (!found) {
EventBus.getDefault()
.post(new HeartRateEvent("Connected to a non heart rate monitor"));
}
} else if (BluetoothLeService.ACTION_DATA_AVAILABLE.equals(action)) {
final String bpm = intent.getStringExtra(BluetoothLeService.EXTRA_DATA);
EventBus.getDefault().post(new HeartRateEvent("Heart rate received: " + bpm));
try {
mBpm = Integer.parseInt(bpm);
EventBus.getDefault().post(new BlueToothLEEvent(mBpm));
} catch (Exception exp) {
exp.printStackTrace();
mBpm = 0;
}
} else if (BluetoothLeService.ACTION_GATT_SERVICES_ERROR.equals(action)) {
EventBus.getDefault().post(new HeartRateEvent("Gatt services error"));
removeTimers();
mTimer = new Timer();
mTimer.schedule(
new TimerTask() {
@Override
public void run() {
scanLeDevice(true);
}
},
SCAN_PERIOD);
}
}
