how to insert a row inside a column in flutter

Question

[not able to figure out the middle column]

https://i.stack.imgur.com/8kLD5.png

child: Row(
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
              children: <Widget>[
                Container(
                  height: double.infinity,
                  width: 100,
                  color: Colors.red,
                ),
                Container(
                  height: 100,
                  width: 100,
                  color: Colors.white,
                ),
                Container(
                  height: double.infinity,
                  width: 100,
                  color: Colors.blue,
                ),
              ])

Answer 1

Just Put a Column in center with mainAxisAlignment: MainAxisAlignment.center

 Row( mainAxisAlignment: MainAxisAlignment.spaceBetween, children: [
              Container(
                height: double.infinity,
                width: 100,
                color: Colors.red,
              ), Column(
                mainAxisAlignment: MainAxisAlignment.center,
              children: [
                Container( height: 100, width: 100, color: Colors.redAccent, ),
                Container( height: 100, width: 100, color: Colors.white, ),
              ],
            ), Container( height: double.infinity, width: 100, color: Colors.blue, ), ])

Answer 2

Hope this will help:

child: Row(
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
              children: <Widget>[
                Container(
                  height: double.infinity,
                  width: 100,
                  color: Colors.red,
                ),
                Column(
                  children: <Widget>[
                    Container(
                    height: 100,
                    width: 100,
                    color: Colors.white,
                  ),
                  Container(
                    height: 100,
                    width: 100,
                    color: Colors.white,
                  ),
                  ]
                )
                Container(
                  height: double.infinity,
                  width: 100,
                  color: Colors.blue,
                ),
              ])