cssd/lib/widgets/LabelScreens/Scan/save_button.dart

import 'package:cssd/config/routes.dart';
import 'package:flutter/material.dart';

class FilterScanSaveButton extends StatelessWidget {
  const FilterScanSaveButton({
    Key key,
    @required GlobalKey<FormState> form,
    @required this.idCTRL,
    @required double deviceBlockSize,
  }) : _form = form, _deviceBlockSize = deviceBlockSize, super(key: key);

  final GlobalKey<FormState> _form;
  final TextEditingController idCTRL;
  final double _deviceBlockSize;

  @override
  Widget build(BuildContext context) {
    return InkWell(
      onTap: () {
        if (! _form.currentState.validate()) {
          return;
        }
        Navigator.of(context).pushNamed(
          Routes.labelDetailScreen,
          arguments: idCTRL.text,
        );
      },
      child: Container(
        padding: EdgeInsets.symmetric(
          horizontal: 5 * _deviceBlockSize,
          vertical: 10,
        ),
        margin: EdgeInsets.symmetric(horizontal: 20),
        decoration: BoxDecoration(
          gradient: LinearGradient(
            colors: [Colors.blue, Colors.green],
          ),
          borderRadius: BorderRadius.circular(7),
        ),
        child: Align(
          alignment: Alignment.center,
          child: Text(
            'GO!',
            style: TextStyle(
              color: Colors.white,
              fontSize: 5 * _deviceBlockSize,
            ),
          ),
        ),
      ),
    );
  }
}