Remove space from border to pie chart

[haohmaruru]

When i create piechart it has a space from chart to border ( i paint it red color). Can i remove that space.

[imaNNeo]

You should set the size manually,
wrap it in a SizedBox, and set the SizedBox's width and height.

width: (radius * 2) + (centerSpace * 2),
height: (radius * 2) + (centerSpace * 2),

check it out with this code:

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

class PieChartPage extends StatefulWidget {
  @override
  _PieChartPageState createState() => _PieChartPageState();
}

class _PieChartPageState extends State<PieChartPage> {

  double radius = 80;
  double centerSpace = 20;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.white,
      body: Center(
        child: SizedBox(
          width: (radius * 2) + (centerSpace * 2),
          height: (radius * 2) + (centerSpace * 2),
          child: PieChart(
            PieChartData(
              sectionsSpace: 12,
              centerSpaceRadius: centerSpace,
              sections: [
                PieChartSectionData(
                  color: const Color(0xff0293ee),
                  value: 25,
                  title: '',
                  radius: radius,
                  titleStyle: TextStyle(
                    fontSize: 18, fontWeight: FontWeight.bold, color: const Color(
                    0xff044d7c)),
                  titlePositionPercentageOffset: 0.55,
                ),
                PieChartSectionData(
                  color: const Color(0xfff8b250),
                  value: 25,
                  title: '',
                  radius: radius,
                  titleStyle: TextStyle(
                    fontSize: 18, fontWeight: FontWeight.bold, color: const Color(
                    0xff90672d)),
                  titlePositionPercentageOffset: 0.55,
                ),
                PieChartSectionData(
                  color: const Color(0xff845bef),
                  value: 25,
                  title: '',
                  radius: radius,
                  titleStyle: TextStyle(
                    fontSize: 18, fontWeight: FontWeight.bold, color: const Color(
                    0xff4c3788)),
                  titlePositionPercentageOffset: 0.6,
                ),
                PieChartSectionData(
                  color: const Color(0xff13d38e),
                  value: 25,
                  title: '',
                  radius: radius,
                  titleStyle: TextStyle(
                    fontSize: 18, fontWeight: FontWeight.bold, color: const Color(
                    0xff0c7f55)),
                  titlePositionPercentageOffset: 0.55,
                ),
              ],
            ),
          ),
        ),
      ),
    );
  }
}

[haohmaruru]

Thanks so much. It verry useful.

[imaNNeo]

You're welcome!