Flutter : Vertically center column

Solution as proposed by Aziz would be:

Column(
  mainAxisAlignment: MainAxisAlignment.center,
  crossAxisAlignment: CrossAxisAlignment.center,
  children: [
    //your widgets here...
  ],
)

It would not be in the exact center because of padding:

padding: EdgeInsets.all(25.0),

To make exactly center Column – at least in this case – you would need to remove padding.