lift-app/lib/widgets/my_card.dart

import 'package:flutter/material.dart';
import 'package:liftmanager/res/colors.dart';
import 'package:liftmanager/utils/theme_utils.dart';

class MyCard extends StatelessWidget {

  const MyCard({
    Key key,
    @required this.child,
    this.color,
    this.shadowColor
  }): super(key: key);

  final Widget child;
  final Color color;
  final Color shadowColor;

  @override
  Widget build(BuildContext context) {
    Color _backgroundColor;
    Color _shadowColor;
    if (color == null){
      _backgroundColor = Colors.white;
    }else{
      _backgroundColor = color;
    }

    if (shadowColor == null){
      _shadowColor =  const Color(0x80DCE7FA);
    }else{
      _shadowColor =  shadowColor;
    }

    return DecoratedBox(
      decoration: BoxDecoration(
          color: _backgroundColor,
          borderRadius: BorderRadius.circular(8.0),
          boxShadow: [
            BoxShadow(color: _shadowColor, offset: Offset(0.0, 2.0), blurRadius: 8.0, spreadRadius: 0.0),
          ]
      ),
      child: child,
    );
  }
}