inputButtonDidTap method Null safety

Implementation

inputButtonDidTap() async {
  final farmName = _farmNameController.text.trim();
  final ownerName = _ownerNameController.text.trim();
  final greeting = _greetingController.text.trim();
  final address = _addressController.text.trim();
  final detail1 = _detailAddr1Controller.text.trim();

  if (x != 0 && y != 0) {
    WeatherService.getTodayWeather(x, y);
  }
}