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Description:

pie chart

Pie Chart #
This Flutter package provides a Pie Chart Widget with cool animation.
More discussions on Discord: https://discord.gg/7byeCn7MGF
💻 Try LIVE Demo #
Live Demo: https://apgapg.github.io/pie_chart/

💻 Installation #
In the dependencies: section of your pubspec.yaml, add the following line:

dependencies:
pie_chart: <latest version>
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❔ Usage #
Import this class #
import 'package:pie_chart/pie_chart.dart';
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Usage is simple. Pie Chart is a widget and it just need a Map<String,double> as its data input.

Map<String, double> dataMap = {
"Flutter": 5,
"React": 3,
"Xamarin": 2,
"Ionic": 2,
};
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- Simple Implementation #
PieChart(dataMap: dataMap)
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- Full Implementation #
PieChart(
dataMap: dataMap,
animationDuration: Duration(milliseconds: 800),
chartLegendSpacing: 32,
chartRadius: MediaQuery.of(context).size.width / 3.2,
colorList: colorList,
initialAngleInDegree: 0,
chartType: ChartType.ring,
ringStrokeWidth: 32,
centerText: "HYBRID",
legendOptions: LegendOptions(
showLegendsInRow: false,
legendPosition: LegendPosition.right,
showLegends: true,
legendShape: _BoxShape.circle,
legendTextStyle: TextStyle(
fontWeight: FontWeight.bold,
),
),
chartValuesOptions: ChartValuesOptions(
showChartValueBackground: true,
showChartValues: true,
showChartValuesInPercentage: false,
showChartValuesOutside: false,
decimalPlaces: 1,
),
// gradientList: ---To add gradient colors---
// emptyColorGradient: ---Empty Color gradient---
)
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⭐ Features #
Control decimal places 'decimalPlaces' #
chartValuesOptions: ChartValuesOptions(
decimalPlaces: 1,
),
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Change legend position with 'legendPosition' #

Change Chart shape to ring #
chartType: ChartType.ring,
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chartType: ChartType.ring,
showChartValuesOutside: true,
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Gradient Colors #
Pie Chart supports gradient as colors. Just pass gradientList instead of colorList to add gradient to chart colors.
final gradientList = <List<Color>>[
[
Color.fromRGBO(223, 250, 92, 1),
Color.fromRGBO(129, 250, 112, 1),
],
[
Color.fromRGBO(129, 182, 205, 1),
Color.fromRGBO(91, 253, 199, 1),
],
[
Color.fromRGBO(175, 63, 62, 1.0),
Color.fromRGBO(254, 154, 92, 1),
]
];

// Pass gradient to PieChart
gradientList: gradientList,
emptyColorGradient: [
Color(0xff6c5ce7),
Colors.blue,
],
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Base Chart Color #
Add a base pie-chart color via:
baseChartColor: Colors.grey
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Full code:
class HomePage2 extends StatelessWidget {
HomePage2({Key? key}) : super(key: key);

final dataMap = <String, double>{
"Flutter": 5,
};

final colorList = <Color>[
Colors.greenAccent,
];

@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text("Pie Chart 1"),
),
body: Container(
padding: EdgeInsets.symmetric(horizontal: 16),
child: PieChart(
dataMap: dataMap,
chartType: ChartType.ring,
baseChartColor: Colors.grey[300]!,
colorList: colorList,
),
),
);
}
}
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Total Value #
To show chart arcs based on your total value, add totalValue option.
class HomePage2 extends StatelessWidget {
HomePage2({Key? key}) : super(key: key);

final dataMap = <String, double>{
"Flutter": 5,
};

final colorList = <Color>[
Colors.greenAccent,
];

@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text("Pie Chart 1"),
),
body: Container(
padding: EdgeInsets.symmetric(horizontal: 16),
child: PieChart(
dataMap: dataMap,
chartType: ChartType.ring,
baseChartColor: Colors.grey[50]!.withOpacity(0.15),
colorList: colorList,
chartValuesOptions: ChartValuesOptions(
showChartValuesInPercentage: true,
),
totalValue: 20,
),
),
);
}
}
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Center Widget #
Creates a new widget placed at pie chart center
centerWidget: Container(color: Colors.red, child: const Text("Center"))
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⭐ My Flutter Packages #

json_table Create Flutter Json Table from json map directly.
avatar_glow Flutter Avatar Glow Widget with glowing animation.
search_widget Flutter Search Widget for selecting an option from list.
animating_location_pin Flutter Animating Location Pin Widget providing Animating Location Pin Widget which can be used while fetching device location.

⭐ My Flutter Apps #

flutter_profile Showcase My Portfolio: Ayush P Gupta on Playstore.
flutter_sankalan Flutter App which allows reading/uploading short stories.

👍 Contribution #

Fork it
Create your feature branch (git checkout -b my-new-feature)
Commit your changes (git commit -m 'Add some feature')
Push to the branch (git push origin my-new-feature)
Create new Pull Request