public void BroadcastUpdate (String action, BluetoothGattCharacteristic characteristic)
{
Intent intent = new Intent (action);
// This is special handling for the Heart Rate Measurement profile. Data parsing is
// carried out as per profile specifications:
// http://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.heart_rate_measurement.xml
if (UUID_HEART_RATE_MEASUREMENT == (characteristic.Uuid)) {
GattProperty flag = characteristic.Properties;
GattFormat format = (GattFormat) (-1);
if (((int) flag & 0x01) != 0) {
format = GattFormat.Uint16;
Log.Debug (TAG, "Heart rate format UINT16.");
} else {
format = GattFormat.Uint8;
Log.Debug (TAG, "Heart rate format UINT8.");
}
var heartRate = characteristic.GetIntValue (format, 1);
Log.Debug (TAG, String.Format ("Received heart rate: {0}", heartRate));
intent.PutExtra (EXTRA_DATA, heartRate);
} else {
// For all other profiles, writes the data formatted in HEX.
byte[] data = characteristic.GetValue ();
if (data != null && data.Length > 0) {
StringBuilder stringBuilder = new StringBuilder (data.Length);
foreach (byte byteChar in data)
stringBuilder.Append (String.Format ("{0}02X ", byteChar));
intent.PutExtra (EXTRA_DATA, Convert.ToBase64String (data) + "\n" + stringBuilder.ToString());
}
}
SendBroadcast (intent);
}
