Day 1 Hovering Image Widget - based off http://www.jonathanpatterson.com/product-design-portfolio.html

main.dart

import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
        debugShowCheckedModeBanner: false,
        home: Scaffold(body: HoveringImageWidget()));
  }
}

class HoveringImageWidget extends StatefulWidget {
  const HoveringImageWidget({
    Key key,
  }) : super(key: key);
  @override
  _HoveringImageWidgetState createState() => _HoveringImageWidgetState();
}

class _HoveringImageWidgetState extends State<HoveringImageWidget> {
  bool _up = true;
  final nonHoverTransform = Matrix4.identity()..translate(0, 0, 0);
  final hoverTransform = Matrix4.identity()..translate(0, -50, 0);
  @override
  void initState() {
    super.initState();
    Future.delayed(Duration(seconds: 1)).then((value) {
      setState(() {
        _up = !_up;
      });
    });
  }

  @override
  Widget build(BuildContext context) {
    Size s = MediaQuery.of(context).size;
    return Container(
      height: double.infinity,
      width: double.infinity,
      color: Color.fromRGBO(234, 67, 53, 1.0),
      child: Stack(
        children: [
          Positioned(
              top: 200.0,
              left: s.width / 2 - 200.0,
              child: AnimatedContainer(
                duration: const Duration(seconds: 4),
                child: Image.network(
                    "http://www.jonathanpatterson.com/images/prism-color-2.png"),
                height: 360,
                width: 360,
                onEnd: () {
                  setState(() {
                    _up = !_up;
                  });
                },
                transform: _up ? hoverTransform : nonHoverTransform,
              )),
        ],
      ),
    );
  }
}