public static async Task <int> GetBatteryPercentageAsync()
{
if (BluetoothDevice == null)
{
return(0);
}
var characteristic = await BluetoothDevice.GetGattCharacteristicAsync(GattCharacteristicUuids.BatteryLevel);
if (characteristic == null)
{
return(0);
}
var valueResult = await characteristic.ReadValueAsync(BluetoothCacheMode.Uncached);
if (valueResult.Status != GattCommunicationStatus.Success)
{
return(0);
}
return(BatteryHelper.GetPercentage(valueResult?.Value));
}
private static void OnBatteryLevelValueChanged(GattCharacteristic sender, GattValueChangedEventArgs args)
{
Messenger.Default.Send(new Messages.DeviceBatteryMessage(BatteryHelper.GetPercentage(args.CharacteristicValue)));
}
