Flutter cards example using Stack

main.dart

import 'package:flutter/material.dart';

void main() {
  runApp(
    MaterialApp(
      home: HomeScreen(),
    ),
  );
}

class HomeScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) => Scaffold(
        body: GridView.count(
          padding: const EdgeInsets.all(20),
          crossAxisSpacing: 10,
          mainAxisSpacing: 10,
          crossAxisCount: 2,
          childAspectRatio: 2.2,
          children: [
            MyCard(),
            MyCard(),
            MyCard(),
          ],
        ),
      );
}

class MyCard extends StatelessWidget {
  @override
  Widget build(BuildContext context) => Container(
        decoration: BoxDecoration(
          borderRadius: BorderRadius.all(Radius.circular(20)),
          color: Color(0xFFCCCCCC),
        ),
        padding: EdgeInsets.all(16),
        child: Stack(
          children: [
            Positioned(
              left: 0,
              top: 0,
              width: 200,
              height: 200,
              child: Text.rich(
                TextSpan(
                  text: '8 (499) 110-2010\n',
                  style: Theme.of(context)
                      .textTheme
                      .headline6!
                      .copyWith(height: 1),
                  children: [
                    TextSpan(
                        text: 'Временный',
                        style: Theme.of(context).textTheme.caption),
                  ],
                ),
              ),
            ),
            Positioned(
              right: 0,
              top: 0,
              width: 100,
              height: 30,
              child: Text(
                '18.05.2020',
                textAlign: TextAlign.right,
                style: Theme.of(context).textTheme.caption,
              ),
            ),
            Positioned(
              left: 0,
              bottom: 0,
              right: 0,
              height: 30,
              child: Container(
                alignment: Alignment.bottomLeft,
                child: Wrap(
                  spacing: 10,
                  children: [
                    'Продажа квартиры,',
                    // 'Жепь',
                    // 'Ебрило',
                    'Ольги Жилиной',
                  ]
                      .map(
                        (t) => InkWell(
                          onTap: () => print('todo'),
                          child: Text(
                            t,
                            style:
                                Theme.of(context).textTheme.caption!.copyWith(
                                      decoration: TextDecoration.underline,
                                    ),
                          ),
                        ),
                      )
                      .toList(),
                ),
              ),
            ),
          ],
        ),
      );
}