Flutter: Trying to bottom-center an item in a Column, but it keeps left-aligning

Question

I'm trying to bottom-center a widget at the bottom of a Column, but it keeps aligning to the left.

return new Column(
  new Stack(
    new Positioned(
      bottom: 0.0, 
      new Center(
        new Container(),
      ),
    ),
  ),
); 

The existence of the Positioned forces the Container to the left, instead of centering. Removing the Positioned, however, puts the Container in the middle-center.

Answer 1

Align is the way to go is you have only one child.

If you have more, consider doing something like this :

return new Column(
  crossAxisAlignment: CrossAxisAlignment.center,
  mainAxisSize: MainAxisSize.max,
  mainAxisAlignment: MainAxisAlignment.end,
  children: <Widget>[
      //your elements here
  ],
);