Flutter Pie chart with animation

Ayush P Gupta

Last update: Dec 24, 2022

Related tags

Overview

Pie Chart

This Flutter package provides a Pie Chart Widget with cool animation.

Live Demo: https://apgapg.github.io/pie_chart/

💻 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>

❔ Usage

Import this class

import 'package:pie_chart/pie_chart.dart';

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,
  };

- Simple Implementation

PieChart(dataMap: dataMap)

- 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,
      ),
    )

Control decimal places 'decimalPlaces'

chartValuesOptions: ChartValuesOptions(
  decimalPlaces: 1,
),

Change legend position with 'legendPosition'

Change Chart shape to ring

chartType: ChartType.ring,

chartType: ChartType.ring,
showChartValuesOutside: true,

⭐ 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

Comments

Change label position

The label now is displayed vertically. It is possible to displayed horizontally?

I want change the legend position to top, and displayed the label horizontally.

Thanks.

opened by tony123S 17

Gradient colors overlapping with each other

The following assertion was thrown during paint():
RenderBox was not laid out: RenderViewport#bc66b NEEDS-PAINT
'package:flutter/src/rendering/box.dart':
Failed assertion: line 1979 pos 12: 'hasSize'


Either the assertion indicates an error in the framework itself, or we should provide substantially more information in this error message to help you determine and fix the underlying cause.
In either case, please report this assertion by filing a bug on GitHub:
  https://github.com/flutter/flutter/issues/new?template=2_bug.md

The relevant error-causing widget was: 
  ListView ListView:file:///C:/Users/akram/myapp/lib/presentation/history/History.dart:127:28
When the exception was thrown, this was the stack: 
#2      RenderBox.size (package:flutter/src/rendering/box.dart:1979:12)
#3      RenderBox.paintBounds (package:flutter/src/rendering/box.dart:2617:41)
#4      PaintingContext._repaintCompositedChild (package:flutter/src/rendering/object.dart:140:56)
#5      PaintingContext.repaintCompositedChild (package:flutter/src/rendering/object.dart:100:5)
#6      PaintingContext._compositeChild (package:flutter/src/rendering/object.dart:198:7)
#7      PaintingContext.paintChild (package:flutter/src/rendering/object.dart:185:7)
#8      RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140:15)
#9      RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:2477:7)
#10     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:187:13)
#11     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140:15)
#12     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:2477:7)
#13     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:187:13)
#14     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140:15)
#15     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:2477:7)
#16     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:187:13)
#17     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140:15)
#18     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:2477:7)
#19     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:187:13)
#20     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140:15)
#21     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:2477:7)
#22     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:187:13)
#23     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140:15)
#24     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:2477:7)
#25     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:187:13)
#26     RenderBoxContainerDefaultsMixin.defaultPaint (package:flutter/src/rendering/box.dart:2844:15)
#27     RenderFlex.paint (package:flutter/src/rendering/flex.dart:1078:7)
#28     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:2477:7)
#29     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:187:13)
#30     RenderBoxContainerDefaultsMixin.defaultPaint (package:flutter/src/rendering/box.dart:2844:15)
#31     RenderCustomMultiChildLayoutBox.paint (package:flutter/src/rendering/custom_layout.dart:408:5)
#32     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:2477:7)
#33     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:187:13)
#34     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140:15)
#35     _RenderInkFeatures.paint (package:flutter/src/material/material.dart:598:11)
#36     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:2477:7)
#37     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:187:13)
#38     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140:15)
#39     PaintingContext.pushLayer (package:flutter/src/rendering/object.dart:387:12)
#40     RenderPhysicalModel.paint (package:flutter/src/rendering/proxy_box.dart:1951:15)
#41     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:2477:7)
#42     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:187:13)
#43     RenderBoxContainerDefaultsMixin.defaultPaint (package:flutter/src/rendering/box.dart:2844:15)
#44     RenderCustomMultiChildLayoutBox.paint (package:flutter/src/rendering/custom_layout.dart:408:5)
#45     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:2477:7)
#46     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:187:13)
#47     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140:15)
#48     _RenderInkFeatures.paint (package:flutter/src/material/material.dart:598:11)
#49     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:2477:7)
#50     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:187:13)
#51     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140:15)
#52     PaintingContext.pushLayer (package:flutter/src/rendering/object.dart:387:12)
#53     RenderPhysicalModel.paint (package:flutter/src/rendering/proxy_box.dart:1951:15)
#54     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:2477:7)
#55     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:187:13)
#56     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140:15)
#57     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:2477:7)
#58     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:187:13)
#59     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140:15)
#60     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:2477:7)
#61     PaintingContext._repaintCompositedChild (package:flutter/src/rendering/object.dart:141:11)
#62     PaintingContext.repaintCompositedChild (package:flutter/src/rendering/object.dart:100:5)
#63     PipelineOwner.flushPaint (package:flutter/src/rendering/object.dart:995:29)
#64     RendererBinding.drawFrame (package:flutter/src/rendering/binding.dart:506:19)
#65     WidgetsBinding.drawFrame (package:flutter/src/widgets/binding.dart:892:13)
#66     RendererBinding._handlePersistentFrameCallback (package:flutter/src/rendering/binding.dart:370:5)
#67     SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:1146:15)
#68     SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:1083:9)
#69     SchedulerBinding._handleDrawFrame (package:flutter/src/scheduler/binding.dart:997:5)
#73     _invoke (dart:ui/hooks.dart:151:10)
#74     PlatformDispatcher._drawFrame (dart:ui/platform_dispatcher.dart:308:5)
#75     _drawFrame (dart:ui/hooks.dart:115:31)
(elided 5 frames from class _AssertionError and dart:async)
The following RenderObject was being processed when the exception was fired: RenderIgnorePointer#e186c relayoutBoundary=up10
...  needs compositing
...  parentData: <none> (can use size)
...  constraints: BoxConstraints(0.0<=w<=392.7, 0.0<=h<=Infinity)
...  size: MISSING
...  ignoring: false
...  ignoringSemantics: false
RenderObject: RenderIgnorePointer#e186c relayoutBoundary=up10
  needs compositing
  parentData: <none> (can use size)
  constraints: BoxConstraints(0.0<=w<=392.7, 0.0<=h<=Infinity)
  size: MISSING
  ignoring: false
  ignoringSemantics: false
...  child: RenderViewport#bc66b NEEDS-PAINT
...    needs compositing
...    parentData: <none> (can use size)
...    constraints: BoxConstraints(0.0<=w<=392.7, 0.0<=h<=Infinity)
...    layer: OffsetLayer#bfdde DETACHED
...      handles: 1
...      offset: Offset(0.0, 0.0)
...    size: MISSING
...    axisDirection: down
...    crossAxisDirection: right
...    offset: ScrollPositionWithSingleContext#f6624(offset: 0.0, range: null..null, viewport: null, ScrollableState, AlwaysScrollableScrollPhysics -> BouncingScrollPhysics -> RangeMaintainingScrollPhysics, IdleScrollActivity#30f36, ScrollDirection.idle)
...    anchor: 0.0
...    center child: RenderSliverPadding#fc714 NEEDS-LAYOUT NEEDS-PAINT
...      parentData: paintOffset=Offset(0.0, 0.0)
...      constraints: MISSING
...      geometry: null
...      padding: EdgeInsets.zero
...      textDirection: ltr
...      child: RenderSliverList#aefd6 NEEDS-LAYOUT NEEDS-PAINT
...        parentData: paintOffset=Offset(0.0, 0.0)
...        constraints: MISSING
...        geometry: null
...        no children current live
====================================================================================================

bug good first issue

opened by wajahat414 15

Feature/gradientElements

Takes a prop gradientList that takes list of colors as elements of list. Another prop isEmptyColorGradient (default:false) to set background color as gradient

opened by cyriacbijun 12

Pie chart not animating with version 5.0.0 (though 4.0.1 works)

Steps to Reproduce

Important Factors

Pie chart draws, but doesn't have the drawing animation when pubspec.yaml has dependency of pie_chart: ^5.0.0
Animation works when only change is reverting dependency in pubspec.yaml back to pie_chart: ^4.0.1

To reproduce the issue, run the following application:

Application Code

main.dart

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

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);

  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  bool chartvisible = false;
  void _showChart() {
    setState(() {
      chartvisible = !chartvisible;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
          child: chartvisible
              ? PieChart(
                  dataMap: {
                    'unwatched': 25.0,
                    'watched': 75.0,
                  },
                  colorList: [
                    Colors.grey,
                    Colors.green,
                  ],
                  chartValuesOptions:
                      ChartValuesOptions(showChartValues: false),
                  legendOptions: LegendOptions(
                    showLegends: false,
                    legendPosition: LegendPosition.right,
                  ),
                )
              : Container()),
      floatingActionButton: FloatingActionButton(
        onPressed: _showChart,
        child: Icon(Icons.add),
      ),
    );
  }
}

pubspec.yaml

name: piecharttest
description: A new Flutter project.

publish_to: 'none' 

version: 1.0.0+1

environment:
  sdk: ">=2.7.0 <3.0.0"

dependencies:
  flutter:
    sdk: flutter
  pie_chart: ^5.0.0


  cupertino_icons: ^1.0.2

dev_dependencies:
  flutter_test:
    sdk: flutter

flutter:

  uses-material-design: true

Flutter Doctor Output

[√] Flutter (Channel stable, 2.0.1, on Microsoft Windows [Version 10.0.19042.867], locale en-US)
    • Flutter version 2.0.1 at C:\development\flutter
    • Framework revision c5a4b4029c (8 days ago), 2021-03-04 09:47:48 -0800
    • Engine revision 40441def69
    • Dart version 2.12.0

[√] Android toolchain - develop for Android devices (Android SDK version 30.0.2)
    • Android SDK at C:\development\android-sdk
    • Platform android-30, build-tools 30.0.2
    • ANDROID_SDK_ROOT = C:\development\android-sdk
    • Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)
    • All Android licenses accepted.

[√] Chrome - develop for the web
    • Chrome at C:\Program Files (x86)\Google\Chrome\Application\chrome.exe

[√] Android Studio (version 4.1.0)
    • Android Studio at C:\Program Files\Android\Android Studio
    • Flutter plugin can be installed from:
       https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
       https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)

[√] VS Code (version 1.54.2)
    • VS Code at C:\Users\josht\AppData\Local\Programs\Microsoft VS Code
    • Flutter extension version 3.20.0

[√] Connected device (2 available)
    • Chrome (web) • chrome • web-javascript • Google Chrome 88.0.4324.190
    • Edge (web)   • edge   • web-javascript • Microsoft Edge 89.0.774.50

• No issues found!

Expected Results

Pie chart animates when drawn.

Actual Results

Pie chart doesn't animate when using pie_chart 5.0.0, but does animate when using 4.0.1.

https://user-images.githubusercontent.com/80551292/111005311-6d02a400-833f-11eb-8bee-780697a167ef.mp4

https://user-images.githubusercontent.com/80551292/111005317-6ecc6780-833f-11eb-8e2a-38e5c6c99829.mp4

good first issue

opened by JoshTaub 7

A few issues since upgrading from 2.0.0
Hi!

A few issues since upgrading from 2.0.0

showChartValuesOutside: The are not totally outside, they are partially on the chart which in my opinion doesn't look as good

Legend position that was added looks bad on RTL languages. a) It is not aligned to the start of the container b) There is not enough padding between the chart and the legends I believe that it will be better to have LegendPosition.start and LegendPosition.end instead of left and right. Please test on a device with and RTL language.

Thanks for this great package. Hope you could get to fixing these issues soon.
opened by guyzk 5
Custom colors

Goodmorning,

I have custom colors i would love to send within the dataMap, is it possible to do this? Because i can read from your pie_chart.dart that you already specified a list of colors.

Greetings, Jente

opened by SJente 5
TextStyle option for center text

Hi,

Thanks for this wonderful package.

Is it possibe to let us customize the centerText by providing textStyle option?

Otherwise, it's a very good and customizable package!
enhancement

opened by saeedjassani 4
toDouble was Called on null

I/flutter (30917): ══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════ I/flutter (30917): The following NoSuchMethodError was thrown building PieChart(dirty, state: I/flutter (30917): _PieChartState#f7d87(ticker active)): I/flutter (30917): The method 'toDouble' was called on null. I/flutter (30917): Receiver: null I/flutter (30917): Tried calling: toDouble() I/flutter (30917): I/flutter (30917): When the exception was thrown, this was the stack: I/flutter (30917): #0 Object.noSuchMethod (dart:core-patch/object_patch.dart:50:5) I/flutter (30917): #1 double.+ (dart:core-patch/double.dart:17:23) I/flutter (30917): #2 new PieChartPainter (package:pie_chart/pie_chart.dart:214:21) I/flutter (30917): #3 _PieChartState.build (package:pie_chart/pie_chart.dart:112:28) I/flutter (30917): #4 StatefulElement.build (package:flutter/src/widgets/framework.dart:3825:27) I/flutter (30917): #5 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3739:15) I/flutter (30917): #6 Element.rebuild (package:flutter/src/widgets/framework.dart:3565:5) I/flutter (30917): #7 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3722:5) I/flutter (30917): #8 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:3864:11) I/flutter (30917): #9 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3717:5) I/flutter (30917): #10 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #11 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #12 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:4876:14) I/flutter (30917): #13 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #14 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #15 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3750:16) I/flutter (30917): #16 Element.rebuild (package:flutter/src/widgets/framework.dart:3565:5) I/flutter (30917): #17 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3722:5) I/flutter (30917): #18 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3717:5) I/flutter (30917): #19 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #20 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #21 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3750:16) I/flutter (30917): #22 Element.rebuild (package:flutter/src/widgets/framework.dart:3565:5) I/flutter (30917): #23 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3722:5) I/flutter (30917): #24 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3717:5) I/flutter (30917): #25 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #26 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #27 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3750:16) I/flutter (30917): #28 Element.rebuild (package:flutter/src/widgets/framework.dart:3565:5) I/flutter (30917): #29 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3722:5) I/flutter (30917): #30 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3717:5) I/flutter (30917): #31 ParentDataElement.mount (package:flutter/src/widgets/framework.dart:4063:11) I/flutter (30917): #32 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #33 MultiChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:4982:32) I/flutter (30917): #34 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #35 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #36 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3750:16) I/flutter (30917): #37 Element.rebuild (package:flutter/src/widgets/framework.dart:3565:5) I/flutter (30917): #38 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3722:5) I/flutter (30917): #39 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:3864:11) I/flutter (30917): #40 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3717:5) I/flutter (30917): #41 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #42 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #43 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3750:16) I/flutter (30917): #44 Element.rebuild (package:flutter/src/widgets/framework.dart:3565:5) I/flutter (30917): #45 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3722:5) I/flutter (30917): #46 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3717:5) I/flutter (30917): #47 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #48 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #49 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3750:16) I/flutter (30917): #50 Element.rebuild (package:flutter/src/widgets/framework.dart:3565:5) I/flutter (30917): #51 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3722:5) I/flutter (30917): #52 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:3864:11) I/flutter (30917): #53 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3717:5) I/flutter (30917): #54 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #55 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #56 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:4876:14) I/flutter (30917): #57 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #58 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #59 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3750:16) I/flutter (30917): #60 Element.rebuild (package:flutter/src/widgets/framework.dart:3565:5) I/flutter (30917): #61 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3722:5) I/flutter (30917): #62 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3717:5) I/flutter (30917): #63 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #64 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #65 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:4876:14) I/flutter (30917): #66 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #67 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #68 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3750:16) I/flutter (30917): #69 Element.rebuild (package:flutter/src/widgets/framework.dart:3565:5) I/flutter (30917): #70 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3722:5) I/flutter (30917): #71 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:3864:11) I/flutter (30917): #72 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3717:5) I/flutter (30917): #73 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #74 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #75 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3750:16) I/flutter (30917): #76 Element.rebuild (package:flutter/src/widgets/framework.dart:3565:5) I/flutter (30917): #77 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3722:5) I/flutter (30917): #78 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:3864:11) I/flutter (30917): #79 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3717:5) I/flutter (30917): #80 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #81 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #82 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3750:16) I/flutter (30917): #83 Element.rebuild (package:flutter/src/widgets/framework.dart:3565:5) I/flutter (30917): #84 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3722:5) I/flutter (30917): #85 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3717:5) I/flutter (30917): #86 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #87 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #88 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3750:16) I/flutter (30917): #89 Element.rebuild (package:flutter/src/widgets/framework.dart:3565:5) I/flutter (30917): #90 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3722:5) I/flutter (30917): #91 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3717:5) I/flutter (30917): #92 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #93 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #94 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3750:16) I/flutter (30917): #95 Element.rebuild (package:flutter/src/widgets/framework.dart:3565:5) I/flutter (30917): #96 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3722:5) I/flutter (30917): #97 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:3864:11) I/flutter (30917): #98 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3717:5) 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(package:flutter/src/widgets/framework.dart:4876:14) I/flutter (30917): #109 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #110 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #111 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3750:16) I/flutter (30917): #112 Element.rebuild (package:flutter/src/widgets/framework.dart:3565:5) I/flutter (30917): #113 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3722:5) I/flutter (30917): #114 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3717:5) I/flutter (30917): #115 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #116 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #117 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:4876:14) I/flutter (30917): #118 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #119 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #120 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:4876:14) I/flutter (30917): #121 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #122 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #123 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:4876:14) I/flutter (30917): #124 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #125 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #126 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:4876:14) I/flutter (30917): #127 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #128 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #129 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3750:16) I/flutter (30917): #130 Element.rebuild (package:flutter/src/widgets/framework.dart:3565:5) I/flutter (30917): #131 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3722:5) I/flutter (30917): #132 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:3864:11) I/flutter (30917): #133 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3717:5) I/flutter (30917): #134 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #135 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #136 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3750:16) I/flutter (30917): #137 Element.rebuild (package:flutter/src/widgets/framework.dart:3565:5) I/flutter (30917): #138 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3722:5) I/flutter (30917): #139 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3717:5) I/flutter (30917): #140 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #141 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #142 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3750:16) I/flutter (30917): 2 I/flutter (30917): 3 I/flutter (30917): 2.0 I/flutter (30917): 3.0 I/flutter (30917): #143 Element.rebuild (package:flutter/src/widgets/framework.dart:3565:5) I/flutter (30917): #144 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3722:5) I/flutter (30917): #145 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:3864:11) I/flutter (30917): #146 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3717:5) I/flutter (30917): #147 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #148 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #149 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:4876:14) I/flutter (30917): #150 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #151 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #152 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3750:16) I/flutter (30917): #153 Element.rebuild (package:flutter/src/widgets/framework.dart:3565:5) I/flutter (30917): #154 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3722:5) I/flutter (30917): #155 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3717:5) I/flutter (30917): #156 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #157 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #158 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:4876:14) I/flutter (30917): #159 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #160 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #161 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3750:16) I/flutter (30917): #162 Element.rebuild (package:flutter/src/widgets/framework.dart:3565:5) I/flutter (30917): #163 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3722:5) I/flutter (30917): #164 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:3864:11) I/flutter (30917): #165 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3717:5) I/flutter (30917): #166 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #167 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #168 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3750:16) I/flutter (30917): #169 Element.rebuild (package:flutter/src/widgets/framework.dart:3565:5) I/flutter (30917): #170 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3722:5) I/flutter (30917): #171 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3717:5) I/flutter (30917): #172 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #173 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #174 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:4876:14) I/flutter (30917): #175 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #176 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #177 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3750:16) I/flutter (30917): #178 Element.rebuild (package:flutter/src/widgets/framework.dart:3565:5) I/flutter (30917): #179 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3722:5) I/flutter (30917): #180 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3717:5) I/flutter (30917): #181 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #182 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #183 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3750:16) I/flutter (30917): #184 Element.rebuild (package:flutter/src/widgets/framework.dart:3565:5) I/flutter (30917): #185 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3722:5) I/flutter (30917): #186 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:3864:11) I/flutter (30917): #187 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3717:5) I/flutter (30917): #188 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #189 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #190 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3750:16) I/flutter (30917): #191 Element.rebuild (package:flutter/src/widgets/framework.dart:3565:5) I/flutter (30917): #192 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3722:5) I/flutter (30917): #193 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:3864:11) I/flutter (30917): #194 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3717:5) I/flutter (30917): #195 Element.inflateWidget (package:flutter/src/widgets/framework.dart:2961:14) I/flutter (30917): #196 Element.updateChild (package:flutter/src/widgets/framework.dart:2764:12) I/flutter (30917): #197 RenderObjectElement.updateChildren (package:flutter/src/widgets/framework.dart:4659:32) I/flutter (30917): #198 MultiChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4992:17) I/flutter (30917): #199 Element.updateChild (package:flutter/src/widgets/framework.dart:2753:15) I/flutter (30917): #200 _TheatreElement.update (package:flutter/src/widgets/overlay.dart:607:16) I/flutter (30917): #201 Element.updateChild (package:flutter/src/widgets/framework.dart:2753:15) I/flutter (30917): #202 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3750:16) I/flutter (30917): #203 Element.rebuild (package:flutter/src/widgets/framework.dart:3565:5) I/flutter (30917): #204 StatefulElement.update (package:flutter/src/widgets/framework.dart:3894:5) I/flutter (30917): #205 Element.updateChild (package:flutter/src/widgets/framework.dart:2753:15) I/flutter (30917): #206 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3750:16) I/flutter (30917): #207 Element.rebuild (package:flutter/src/widgets/framework.dart:3565:5) I/flutter (30917): #208 ProxyElement.update (package:flutter/src/widgets/framework.dart:4006:5) I/flutter (30917): #209 Element.updateChild (package:flutter/src/widgets/framework.dart:2753:15) I/flutter (30917): #210 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4883:14) I/flutter (30917): #211 Element.updateChild (package:flutter/src/widgets/framework.dart:2753:15) I/flutter (30917): #212 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3750:16) I/flutter (30917): #213 Element.rebuild (package:flutter/src/widgets/framework.dart:3565:5) I/flutter (30917): #214 StatefulElement.update (package:flutter/src/widgets/framework.dart:3894:5) I/flutter (30917): #215 Element.updateChild (package:flutter/src/widgets/framework.dart:2753:15) I/flutter (30917): #216 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4883:14) I/flutter (30917): #217 Element.updateChild (package:flutter/src/widgets/framework.dart:2753:15) I/flutter (30917): #218 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4883:14) I/flutter (30917): #219 Element.updateChild (package:flutter/src/widgets/framework.dart:2753:15) I/flutter (30917): #220 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3750:16) I/flutter (30917): #221 Element.rebuild (package:flutter/src/widgets/framework.dart:3565:5) I/flutter (30917): #222 BuildOwner.buildScope (package:flutter/src/widgets/framework.dart:2278:33) I/flutter (30917): #223 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding&PaintingBinding&SemanticsBinding&RendererBinding&WidgetsBinding.drawFrame (package:flutter/src/widgets/binding.dart:700:20) I/flutter (30917): #224 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding&PaintingBinding&SemanticsBinding&RendererBinding._handlePersistentFrameCallback (package:flutter/src/rendering/binding.dart:286:5) I/flutter (30917): #225 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:1012:15) I/flutter (30917): #226 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:952:9) I/flutter (30917): #227 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding._handleDrawFrame (package:flutter/src/scheduler/binding.dart:864:5) I/flutter (30917): #231 _invoke (dart:ui/hooks.dart:219:10) I/flutter (30917): #232 _drawFrame (dart:ui/hooks.dart:178:3) I/flutter (30917): (elided 3 frames from package dart:async) I/flutter (30917): ════════════════════════════════════════════════════════════════════════════════════════════════════ I/flutter (30917): Another exception was thrown: NoSuchMethodError: The method 'toDouble' was called on null. I/chatty (30917): uid=10656(com.example.mydb_todo) 1.ui identical 4 lines I/flutter (30917): Another exception was thrown: NoSuchMethodError: The method 'toDouble' was called onnull.``

opened by nitishpatel 4
Data changed but PieChart was not changed.
I used FutureBuilder to mock data from sqflite then build a PieChart. My code like this:

new FutureBuilder<List<Map<String, dynamic>>>( future: db.getGroupData(), builder: (BuildContext context, AsyncSnapshot<List<Map<String, dynamic>>> snapshot) { if(snapshot.hasData) { return pieChartCard(context, snapshot.data); } else { return new CircularProgressIndicator(); } }, ), And render function pieChartCard: `Widget pieChartCard(BuildContext context, List<Map<String, dynamic>> data) { Size size = MediaQuery.of(context).size; Map<String, double> dataMap = new Map<String, double>();

data.forEach((item) => dataMap.putIfAbsent(item['tengroup'], () => item['Total'] + 0.0)); return new Column( children: <Widget>[ new FlatButton( onPressed: () => null, child: new Text( dataMap.length.toString(), style: new TextStyle( color: Colors.white, fontWeight: FontWeight.w900, fontSize: 25.0 ), ), ), new PieChart( dataMap: dataMap, legendFontColor: Colors.white, legendFontSize: 14.0, legendFontWeight: FontWeight.w500, animationDuration: Duration(milliseconds: 800), chartLegendSpacing: 32.0, chartRadius: MediaQuery .of(context) .size .width / 2.7, showChartValuesInPercentage: true, showChartValues: true, chartValuesColor: Colors.blueGrey[900].withOpacity(0.9), ) ], );

}` When i insert a data from other Screen and then back to previous screen but pie chart was not changed. I also logged some script in render function and saw the data was changed. My chart only change when i exit app and then open it again. Please let me know how to fix it. Thanks.
opened by leehuwuj 4

Custom legend label

An option for adding custom legend labels. Closes #63 This PR will add a new property legendLabels of type Map<String,String> to the widget.

final legendLabels = <String, String>{
    "Flutter": "Flutter legend",
    "React": "React legend",
    "Xamarin": "Xamarin legend",
    "Ionic": "Ionic legend",
  };


// add to pie chart
legendLabels: legendLabels

Screenshot from 2021-11-09 09-29-55

The key in property should match with dataMap, otherwise fallback to default value.

final legendLabels = <String, String>{
    "Flutter": "Flutter legend",
    "React": "React legend",
  };


// add to pie chart
legendLabels: legendLabels

Screenshot from 2021-11-09 09-46-20

opened by Imagine-Me 3

Migrate pie_chart to null safety

This package should be migrated to null safety so that other apps and packages depending on it can (more easily) migrate to null safety as well.

Do you have any plans for this?

Thanks.

Related links:

https://dart.dev/null-safety/migration-guide

https://www.youtube.com/watch?v=bvq7wbn4VAA&ab_channel=Flutter
good first issue

opened by peterwvj 3
Automatic Repaint on Hero

I wrapped the PieChart with a Hero widget in order to animate that between two pages. When a switch to the second page the PieChart gets repainted. I think the widget is painting as soon as the page loads, and the hero widget overrides that animation, and then you obtain that weird laggy effect

opened by riccardocescon 2
Quality of life improvement: Small "pie slices" are cut off because the slice is to small

As seen in the photo below, I have a slice that should represent 3%. There is no other text nearby to cut it off. This makes me think the 3% text is tied to a layer in a stack and that the 97% layer is covering the text.

A possible solution would be to place the text on top of the graph rather than having the text tied to a specific layer.

opened by shawnAshton 0

[BUG] Random Angle on Repaint

Whenever Flutter repaints the PieChart angle will seemingly change to a random angle.

https://user-images.githubusercontent.com/2219074/170731588-70a5eae1-b8b1-461e-a348-7fccca7a118a.mov

This is how PieChart is used in my app:

           PieChart(
              initialAngleInDegree: 270.0,
              dataMap: {
                "water": value,
              },
              ringStrokeWidth: 6.0,
              chartType: ChartType.ring,
              totalValue: maxValue,
              baseChartColor: Colors.black38,
              colorList: const [
                Colors.greenAccent,
              ],
              chartValuesOptions: const ChartValuesOptions(
                showChartValues: false,
              ),
              legendOptions: const LegendOptions(
                showLegends: false,
              ),
            ),
          ),

What could possibly be the issue? Is it a bug in PieChart self?

opened by MelvinIdema 5

Flutter 3 issue

In Flutter 3, WidgetsBinding.instance no longer requires a null safety check.

: Warning: Operand of null-aware operation '?.' has type 'WidgetsBinding' which excludes null.
../…/pie_chart/pie_chart.dart:42
- 'WidgetsBinding' is from 'package:flutter/src/widgets/binding.dart' ('../../../../bin/flutter/packages/flutter/lib/src/widgets/binding.dart').
package:flutter/…/widgets/binding.dart:1
    WidgetsBinding.instance?.addPostFrameCallback((_) {

good first issue waiting for customer response

opened by fennelhans 5