positionFromEvent function

List<double> positionFromEvent(
  1. Offset position,
  2. BuildContext context
)

Implementation

List<double> positionFromEvent(Offset position, BuildContext context) {
  final double screenWidth = MediaQuery.sizeOf(context).width;
  final padding = MediaQuery.of(context).padding;
  final double x = position.dx / screenWidth;
  final double y = position.dy - padding.top;
  return <double>[x, y];
}