Flutter

Widget _listItemBuilder(BuildContext context, int index) {
    return Container(
      color: Colors.white,
      margin: EdgeInsets.all(8.0),
      child: Stack(
        children: [
          Column(
            children: [
              AspectRatio(
                aspectRatio: 16/9,
                child: Image.network(posts[index].imageUrl, fit: BoxFit.cover),
              ),
              SizedBox(height: 16.0),
              Text(
                posts[index].title,
                style: Theme.of(context).textTheme.title
              ),
              Text(
                posts[index].author,
                style: Theme.of(context).textTheme.subhead
              ),
              SizedBox(height: 16.0),
            ],
          ),
          Positioned.fill(
            child: Material(
              color: Colors.transparent,
              child: InkWell(
                splashColor: Colors.white.withOpacity(0.3),
                highlightColor: Colors.white.withOpacity(0.1),
                onTap: () {
                  Navigator.of(context).push(
                    MaterialPageRoute(builder: (context) => PostShow(post: posts[index]))
                  );
                }
              ),
            ),
          ),
        ],
      ),
    );
  }