doctor_app_flutter/lib/widgets/charts/app_bar_chart.dart

import 'package:flutter/material.dart';
import 'package:charts_flutter/flutter.dart' as charts;

class AppBarChart extends StatelessWidget {
  const AppBarChart({
    Key key,
    @required this.seriesList,
  }) : super(key: key);

  final List<charts.Series> seriesList;

  @override
  Widget build(BuildContext context) {
    return Container(
      height: 400,
      margin: EdgeInsets.only(top: 60),
      child: charts.BarChart(
        seriesList,
        // animate: animate,

        /// Customize the primary measure axis using a small tick renderer.
        /// Use String instead of num for ordinal domain axis
        /// (typically bar charts).
        primaryMeasureAxis: new charts.NumericAxisSpec(
            renderSpec: new charts.GridlineRendererSpec(
              // Display the measure axis labels below the gridline.
              //
              // 'Before' & 'after' follow the axis value direction.
              // Vertical axes draw 'before' below & 'after' above the tick.
              // Horizontal axes draw 'before' left & 'after' right the tick.
              labelAnchor: charts.TickLabelAnchor.before,

              // Left justify the text in the axis.
              //
              // Note: outside means that the secondary measure axis would right
              // justify.
              labelJustification:
              charts.TickLabelJustification.outside,
            )),
      ),
    );
  }
}