showToast function
Implementation
showToast(String? message, BuildContext? context) {
FocusScope.of(context!).requestFocus(FocusNode());
Fluttertoast.showToast(
msg: message.toString(),
toastLength: Toast.LENGTH_LONG,
gravity: ToastGravity.BOTTOM,
timeInSecForIosWeb: 1,
backgroundColor: black,
textColor: white,
fontSize: 16.0);
}