public override async Task OnNavigatedToAsync(object parameter, NavigationMode mode, IDictionary <string, object> suspensionState)
{
if (suspensionState.Any())
{
Value = suspensionState[nameof(Value)]?.ToString();
}
bluetoothListener = new BluetoothListener();
await bluetoothListener.RegisterTask();
bluetoothListener.MessageReceived += BluetoothListener_MessageReceived;
await Task.CompletedTask;
}