Flutter custom indicator animation simple

Design

Implement static ui with Flutter

Widget indicatorIcon() {
  return new Container(
    width: screenSize.width,
    height: height,
    padding: new EdgeInsets.symmetric(
      vertical: height / 2 - iconSize / 2,
    ),
    child: new Stack(
      children: <Widget>[
        getIcon(0),
        getIcon(1),
        getIcon(2),
        getIcon(3),
      ],
    ),
  );
}

Widget getIcon(index)…