How to achieve expansion of a widget in both vertical (height) and horizontal (width) direction

Question

The code below lays out a chart in which I\'d need to achieve for the chart to be expanded in both vertical (height) and horizontal (width) direction. The suggested method (e.g.

Answer 1

There is a better way than nesting Row, Expanded and Column widget. You can use the Container widget with Constraints to BoxConstraints.expand().

Example Code:

    Widget build(BuildContext context) {
      return Container(
        constraints: BoxConstraints.expand(), 
        child: FutureBuilder(
          future: loadImage(),
          builder: (BuildContext context, AsyncSnapshot snapshot) {
            switch(snapshot.connectionState) {
              case ConnectionState.waiting : 
                return Center(child: Text("loading..."),);
              default:
                if (snapshot.hasError) {
                  return Center(child: Text("error: ${snapshot.error}"),);
                } else {
                  return ImagePainter(image: snapshot.data);
                }
              }
            },
          ),
      );
    }