Example to Make 3 Different Type of Pie Chart in React Native

React Native Pie Chart

This is an Example to Make 3 Different Type of Pie Chart in React Native. React Native Pie Chart can be made using the library react-native-pie. If you are making an app that has numbers and lots of statics to show then charts are the best way to show that data. Pie Charts are best to use when you are trying to compare different parts of a whole. They do not show changes over time. Here is the Example to make Pie Chart in your React Native App.

If you want to explore more Charts then you can visit 7 Type of Graph using React Native Chart Kit and for Speedometer graph visit visualize data with Speedometer Graph in React Native.

To make a Pie Chart we are going to use a react-native-pie library. It will provide a Pie component that is very easy to integrate. You can see the example below.

How to use Pie component?

<Pie
  radius={70}
  //completly filled pie chart with radius 70
  series={[10, 20, 30, 40]}
  //values to show and color sequentially
  colors={['#f00', '#0f0', '#00f', '#ff0']}
/>

In this example, We are going to make a Solid/Filled Pie Chart, Donut Pie Chart, and Gauge Pie Chart. So let’s get started.

To Make a React Native App

Getting started with React Native will help you to know more about the way you can make a React Native project. We are going to use react native command line interface to make our React Native App.

If you have previously installed a global react-native-cli package, please remove it as it may cause unexpected issues:

npm uninstall -g react-native-cli @react-native-community/cli

Run the following commands to create a new React Native project

npx react-native init ProjectName

If you want to start a new project with a specific React Native version, you can use the --version argument:

npx react-native init ProjectName --version X.XX.X

Note If the above command is failing, you may have old version of react-native or react-native-cli installed globally on your pc. Try uninstalling the cli and run the cli using npx.

This will make a project structure with an index file named App.js in your project directory.

Installation of Dependency

To use Pie component, you need to install react-native-pie and @react-native-community/art.

To install this open the terminal and jump into your project

cd ProjectName

Run the following command

npm install react-native-pie --save

npm install @react-native-community/art --save

These commands will copy all the dependencies into your node_module directory, –save is optional, it is just to update the dependency in your package.json file.

Code to Make a Pie Chart in React Native

Now Open App.js in any code editor and replace the code with the following code

App.js

// Example to Make 3 Different Type of Pie Chart in React Native
// https://aboutreact.com/react-native-pie-chart/

// import React in our code
import React from 'react';

// import all the components we are going to use
import {SafeAreaView, StyleSheet, View, Text} from 'react-native';

// import pie to make pie chart
import Pie from 'react-native-pie';

const App = () => {
  return (
    <SafeAreaView style={{flex: 1}}>
      <View style={styles.container}>
        <Text>Pie Chart Example</Text>
        <View
          style={{
            paddingVertical: 15,
            flexDirection: 'row',
            width: 350,
            justifyContent: 'space-between',
          }}
        >
          <Pie
            radius={80}
            sections={[
              {
                percentage: 10,
                color: '#C70039',
              },
              {
                percentage: 20,
                color: '#44CD40',
              },
              {
                percentage: 30,
                color: '#404FCD',
              },
              {
                percentage: 40,
                color: '#EBD22F',
              },
            ]}
            strokeCap={'butt'}
          />
          <Pie
            radius={80}
            innerRadius={50}
            sections={[
              {
                percentage: 10,
                color: '#C70039',
              },
              {
                percentage: 20,
                color: '#44CD40',
              },
              {
                percentage: 30,
                color: '#404FCD',
              },
              {
                percentage: 40,
                color: '#EBD22F',
              },
            ]}
            strokeCap={'butt'}
          />
        </View>
        <View
          style={{
            paddingVertical: 15,
            flexDirection: 'row',
            width: 350,
            justifyContent: 'space-between',
          }}
        >
          <Pie
            radius={80}
            innerRadius={60}
            sections={[
              {
                percentage: 10,
                color: '#C70039',
              },
              {
                percentage: 20,
                color: '#44CD40',
              },
              {
                percentage: 30,
                color: '#404FCD',
              },
              {
                percentage: 40,
                color: '#EBD22F',
              },
            ]}
            dividerSize={4}
            strokeCap={'round'}
          />
          <Pie
            radius={80}
            innerRadius={60}
            sections={[
              {
                percentage: 10,
                color: '#C70039',
              },
              {
                percentage: 20,
                color: '#44CD40',
              },
              {
                percentage: 30,
                color: '#404FCD',
              },
              {
                percentage: 40,
                color: '#EBD22F',
              },
            ]}
            dividerSize={6}
            strokeCap={'butt'}
          />
        </View>
        <View
          style={{
            paddingVertical: 15,
            width: 350,
            flexDirection: 'row',
            justifyContent: 'space-between',
          }}
        >
          <Pie
            radius={80}
            sections={[
              {
                percentage: 10,
                color: '#C70039',
              },
              {
                percentage: 20,
                color: '#44CD40',
              },
              {
                percentage: 30,
                color: '#404FCD',
              },
              {
                percentage: 40,
                color: '#EBD22F',
              },
            ]}
            dividerSize={6}
            strokeCap={'butt'}
          />
          <View style={{ width: 175, alignItems: 'center' }}>
            <Pie
              radius={80}
              innerRadius={75}
              sections={[
                {
                  percentage: 60,
                  color: '#f00',
                },
              ]}
              backgroundColor="#ddd"
            />
            <View style={styles.gauge}>
              <Text style={styles.gaugeText}>
                60%
              </Text>
            </View>
          </View>
        </View>
      </View>
    </SafeAreaView>
  );
};

export default App;

const styles = StyleSheet.create({
  container: {
    flex: 1,
    alignItems: 'center',
    justifyContent: 'space-around',
    marginTop: 30,
  },
  gauge: {
    position: 'absolute',
    width: 140,
    height: 140,
    alignItems: 'center',
    justifyContent: 'center',
  },
  gaugeText: {
    backgroundColor: 'transparent',
    color: '#000',
    fontSize: 24,
  },
});

To Run the React Native App

Open the terminal again and jump into your project using.

cd ProjectName

1. Start Metro Bundler

First, you will need to start Metro, the JavaScript bundler that ships with React Native. To start Metro bundler run following command:

npx react-native start

Once you start Metro Bundler it will run forever on your terminal until you close it. Let Metro Bundler run in its own terminal. Open a new terminal and run the application.

2. Start React Native Application

To run the project on an Android Virtual Device or on real debugging device:

npx react-native run-android

or on the iOS Simulator by running (macOS only)

npx react-native run-ios

Possible issue

If you face any issues while running this project on the iOS device then you need to link the ART library. I prefer first run this example on the iOS device and is you face any issue then only do these steps

1. To Link, the ART library for the IOS open the ProjectName.xcworkspace in Xcode

2. You will see Project Structure in Left Menu. Click on the Libraries option to expand.

3. Navigate to node_modules/react-native/Libraries/ART/ART.xcodeproj and drag ART.xcodeproj into the Libraries

4. Now expand the ART.xcodeproj and navigate to Products. You will see libART.a. Click on the Project in the left sidebar (PieChartExample in this case), and now find the Build Phase tab in the workspace area where you can see Link Binary With Libraries. (Please make note that  you have selected the Project and then opened the Build Phase)

5. Now drag the libART.a file into the Link Binary With Libraries.

 

Output Screenshots

Output in Online Emulator

That was the React Native Pie Chart. If you have any doubts or you want to share something about the topic you can comment below or contact us here. There will be more posts coming soon. Stay tuned!

Hope you liked it. 🙂