React Native Pie Chart Example


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Published By: Admin, Published On: Jun 18, 2021, Category: React Native

Hi Guys,

In this blog,I will learn you how to use pie chart in react native. We will show example of pie chart in react native. You can easliy create react native pie chart. First i will import pieChart namespace from react-native-svg-charts, after I will make pie chart using in react native.

Step 1 - Create project

In the first step Run the following command for create project.

expo init MyWebtuts 
Step 2 - Installation of Dependency

In the step, Run the following command for installation of dependency.

To use pieChart you need to install react-native-svg-chartss package.

To install this open the terminal and jump into your project

cd paper MyWebtuts 
Run the following command
yarn add react-native-svg-charts
after install d3-shape package for shape.
yarn add d3-shape
Next, I will in install react-native-paper for App bar.
yarn add react-native-paper
Step 3 - App.js

In this step, You will open App.js file and put the code.

import React, { Component } from "react";
import { View,StyleSheet,Text} from 'react-native';
import { Provider ,Appbar,Card} from 'react-native-paper';
import { PieChart } from 'react-native-svg-charts';
import * as shape from 'd3-shape';

const MyWebtutsComponent = () => {
      
    const data = [50, 10, 40, 95, -4, -24, 85, 91, 35, 53, -53, 24, 50, -20, -80];
 
    const randomColor = () => ('#' + ((Math.random() * 0xffffff) << 0).toString(16) + '000000').slice(0, 7);

    const pieData = data
        .filter((value) => value > 0)
        .map((value, index) => ({
            value,
            svg: {
                fill: randomColor(),
                onPress: () => console.log('press', index),
            },
            key: `pie-${index}`,
        }));

    const _goBack = () => console.log('Went back');

    const _handleSearch = () => console.log('Searching');

    const _handleMore = () => console.log('Shown more');

    return (
      <Provider>
          <Appbar.Header style={styles.header}>
            <Appbar.BackAction onPress={_goBack} />
            <Appbar.Content title="MyWebtuts" subtitle="Subtitle" />
            <Appbar.Action icon="magnify" onPress={_handleSearch} />
            <Appbar.Action icon="dots-vertical" onPress={_handleMore} />
          </Appbar.Header>
          <View style={styles.mainbox}>
            <Text style={styles.title}>React Native Pie Chart Example</Text>
            <Card>
              <PieChart 
                  style={{ height: 200 }}
                  data={pieData} 
              >
              </PieChart>
             </Card>
          </View>
      </Provider>
    );
  };


const styles = StyleSheet.create({
    mainbox:{
      textAlign:'center',
      margin: 15,
      justifyContent: 'space-between',
    },
    title:{
      fontSize: 21
    }
});
export default MyWebtutsComponent;
Step 3 - Run project

In the last step run your project using bellow command.

expo start
Output

It will help you...

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