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Home Flutter Widgets

Integrate Percent Indicator in Flutter (Circular & Linear)

July 2, 2020
in Flutter Widgets, Material Design
5 min read
flutter progress indicator

The Percent Indicator plugin in Flutter is a powerful tool that helps you indicate the percentage of a particular progress indicator. The Percentage Indicator library simply allows you to display a progress widgets based on percentage. One good part about the package is that it can be circular or linear, as You can also customize it to your own like and needs.

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Circular and Linear percent indicators

drawing
progress indicator flutter

Features 

  • Circle percent indicator
  • Linear percent indicator
  • Toggle animation
  • Custom duration of the animation
  • Progress based on a percentage value
  • Progress and background color
  • Custom size
  • Left , right or center child for Linear percent indicator
  • Top, bottom or center child for Circular percent indicator
  • Progress Color using gradients

Getting started 

You should ensure that you add the router as a dependency in your flutter project.

dependencies:
 percent_indicator: "^2.1.5"

You should then run flutter packages upgrade or update your packages in IntelliJ.

Example Project 

There is a example project in the example folder. Check it out. Otherwise, keep reading to get up and running.

Usage 

Need to include the import the package to the dart file where it will be used, use the below command,

import 'package:percent_indicator/percent_indicator.dart';

Circular percent indicator

Basic Widget

new CircularPercentIndicator(
                  radius: 60.0,
                  lineWidth: 5.0,
                  percent: 1.0,
                  center: new Text("100%"),
                  progressColor: Colors.green,
                )

Complete example

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: new AppBar(
        title: new Text("Circular Percent Indicators"),
      ),
          body: Center(
        child: ListView(
            children: <Widget>[
              new CircularPercentIndicator(
                radius: 100.0,
                lineWidth: 10.0,
                percent: 0.8,
                header: new Text("Icon header"),
                center: new Icon(
                  Icons.person_pin,
                  size: 50.0,
                  color: Colors.blue,
                ),
                backgroundColor: Colors.grey,
                progressColor: Colors.blue,
              ),
              new CircularPercentIndicator(
                radius: 130.0,
                animation: true,
                animationDuration: 1200,
                lineWidth: 15.0,
                percent: 0.4,
                center: new Text(
                  "40 hours",
                  style:
                      new TextStyle(fontWeight: FontWeight.bold, fontSize: 20.0),
                ),
                circularStrokeCap: CircularStrokeCap.butt,
                backgroundColor: Colors.yellow,
                progressColor: Colors.red,
              ),
              new CircularPercentIndicator(
                radius: 120.0,
                lineWidth: 13.0,
                animation: true,
                percent: 0.7,
                center: new Text(
                  "70.0%",
                  style:
                      new TextStyle(fontWeight: FontWeight.bold, fontSize: 20.0),
                ),
                footer: new Text(
                  "Sales this week",
                  style:
                      new TextStyle(fontWeight: FontWeight.bold, fontSize: 17.0),
                ),
                circularStrokeCap: CircularStrokeCap.round,
                progressColor: Colors.purple,
              ),
              Padding(
                padding: EdgeInsets.all(15.0),
                child: new CircularPercentIndicator(
                  radius: 60.0,
                  lineWidth: 5.0,
                  percent: 1.0,
                  center: new Text("100%"),
                  progressColor: Colors.green,
                ),
              ),
              Container(
                padding: EdgeInsets.all(15.0),
                child: new Row(
                  mainAxisAlignment: MainAxisAlignment.center,
                  children: <Widget>[
                    new CircularPercentIndicator(
                      radius: 45.0,
                      lineWidth: 4.0,
                      percent: 0.10,
                      center: new Text("10%"),
                      progressColor: Colors.red,
                    ),
                    new Padding(
                      padding: EdgeInsets.symmetric(horizontal: 10.0),
                    ),
                    new CircularPercentIndicator(
                      radius: 45.0,
                      lineWidth: 4.0,
                      percent: 0.30,
                      center: new Text("30%"),
                      progressColor: Colors.orange,
                    ),
                    new Padding(
                      padding: EdgeInsets.symmetric(horizontal: 10.0),
                    ),
                    new CircularPercentIndicator(
                      radius: 45.0,
                      lineWidth: 4.0,
                      percent: 0.60,
                      center: new Text("60%"),
                      progressColor: Colors.yellow,
                    ),
                    new Padding(
                      padding: EdgeInsets.symmetric(horizontal: 10.0),
                    ),
                    new CircularPercentIndicator(
                      radius: 45.0,
                      lineWidth: 4.0,
                      percent: 0.90,
                      center: new Text("90%"),
                      progressColor: Colors.green,
                    )
                  ],
                ),
              )
            ]),
      ),
    );
  }
progress indicator flutter

Linear percent indicator

Basic Widget

new LinearPercentIndicator(
                width: 140.0,
                lineHeight: 14.0,
                percent: 0.5,
                backgroundColor: Colors.grey,
                progressColor: Colors.blue,
              ),

Complete example

@override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: new AppBar(
        title: new Text("Linear Percent Indicators"),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Padding(
              padding: EdgeInsets.all(15.0),
              child: new LinearPercentIndicator(
                width: 140.0,
                lineHeight: 14.0,
                percent: 0.5,
                center: Text(
                  "50.0%",
                  style: new TextStyle(fontSize: 12.0),
                ),
                trailing: Icon(Icons.mood),
                linearStrokeCap: LinearStrokeCap.roundAll,
                backgroundColor: Colors.grey,
                progressColor: Colors.blue,
              ),
            ),
            Padding(
              padding: EdgeInsets.all(15.0),
              child: new LinearPercentIndicator(
                width: 170.0,
                animation: true,
                animationDuration: 1000,
                lineHeight: 20.0,
                leading: new Text("left content"),
                trailing: new Text("right content"),
                percent: 0.2,
                center: Text("20.0%"),
                linearStrokeCap: LinearStrokeCap.butt,
                progressColor: Colors.red,
              ),
            ),
            Padding(
              padding: EdgeInsets.all(15.0),
              child: new LinearPercentIndicator(
                width: MediaQuery.of(context).size.width - 50,
                animation: true,
                lineHeight: 20.0,
                animationDuration: 2000,
                percent: 0.9,
                center: Text("90.0%"),
                linearStrokeCap: LinearStrokeCap.roundAll,
                progressColor: Colors.greenAccent,
              ),
            ),
            Padding(
              padding: EdgeInsets.all(15.0),
              child: new LinearPercentIndicator(
                width: MediaQuery.of(context).size.width - 50,
                animation: true,
                lineHeight: 20.0,
                animationDuration: 2500,
                percent: 0.8,
                center: Text("80.0%"),
                linearStrokeCap: LinearStrokeCap.roundAll,
                progressColor: Colors.green,
              ),
            ),
            Padding(
              padding: EdgeInsets.all(15.0),
              child: Column(
                children: <Widget>[
                  new LinearPercentIndicator(
                    width: 100.0,
                    lineHeight: 8.0,
                    percent: 0.2,
                    progressColor: Colors.red,
                  ),
                  new LinearPercentIndicator(
                    width: 100.0,
                    lineHeight: 8.0,
                    percent: 0.5,
                    progressColor: Colors.orange,
                  ),
                  new LinearPercentIndicator(
                    width: 100.0,
                    lineHeight: 8.0,
                    percent: 0.9,
                    progressColor: Colors.blue,
                  )
                ],
              ),
            ),
          ],
        ),
      ),
    );
  }
progress indicator flutter

You can follow me on twitter @diegoveloper

https://github.com/diegoveloper/flutter_percent_indicator/

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