No border on pie chart with a single section

[mentoc3000]

Describe the bug
Border is not shown on pie charts that have only one section.

To Reproduce

Code that produces image below

import 'package:fl_chart/fl_chart.dart';
import 'package:flutter/material.dart';

void main() => runApp(const MyApp());

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      home: Scaffold(
        body: PieChartSample(),
      ),
    );
  }
}

class PieChartSample extends StatelessWidget {
  const PieChartSample({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Center(
      child: Column(
        mainAxisAlignment: MainAxisAlignment.center,
        children: [
          Card(
            child: SizedBox(
              height: 200,
              width: 200,
              child: PieChart(
                PieChartData(sections: showingSections(4)),
              ),
            ),
          ),
          Card(
            child: SizedBox(
              height: 200,
              width: 200,
              child: PieChart(
                PieChartData(sections: showingSections(1)),
              ),
            ),
          ),
        ],
      ),
    );
  }

  List<PieChartSectionData> showingSections(int count) {
    final sections = [
      PieChartSectionData(value: 40, borderSide: const BorderSide()),
      PieChartSectionData(value: 30, borderSide: const BorderSide()),
      PieChartSectionData(value: 15, borderSide: const BorderSide()),
      PieChartSectionData(value: 15, borderSide: const BorderSide()),
    ];
    return sections.take(count).toList();
  }
}

Screenshots

Versions

• which version of the Flutter are you using? 3.0.1
• which version of the FlChart are you using? 0.55.0

[imaNNeo]

Fixed in 0.55.1. Check it out!

[mentoc3000]

Thanks for addressing this @imaNNeoFighT! I see the border on the outside now, but shouldn't there also be a border on the inside to be consistent with the multi-section design?

[imaNNeo]

Oh sorry. I missed that. I will fix it ASAP.

[imaNNeo]

It has landed on the master branch just now.
You can try it out using the below code until we bump the version up.

dependencies:

  fl_chart:
    git:
      url: git@github.com:imaNNeoFighT/fl_chart.git
      ref: master

[mentoc3000]

Looks great!!