react-native-charts-wrapper/Example/app/PieChartScreen.js

A react-native charts support both android and ios.

import React from 'react';
import {
  AppRegistry,
  StyleSheet,
  Text,
  View,
  processColor
} from 'react-native';

import {PieChart} from 'react-native-charts-wrapper';

class PieChartScreen extends React.Component {

  constructor() {
    super();

    this.state = {
      legend: {
        enabled: true,
        textSize: 8,
        form: 'CIRCLE',
        position: 'RIGHT_OF_CHART',
        wordWrapEnabled: true
      },
      data: {
        dataSets: [{
          values: [{value: 40, label: 'Sandwiches'},
            {value: 21, label: 'Salads'},
            {value: 15, label: 'Soup'},
            {value: 9, label: 'Beverages'},
            {value: 15, label: 'Desserts'}],
          label: 'Pie dataset',
          config: {
            colors: [processColor('#C0FF8C'), processColor('#FFF78C'), processColor('#FFD08C'), processColor('#8CEAFF'), processColor('#FF8C9D')],

            sliceSpace: 5,
            selectionShift: 13
          }
        }],
      },
      description: {
        text: 'This is Pie chart description',
        textSize: 15,
        textColor: processColor('darkgray'),

      }
    };
  }

  handleSelect(event) {
    let entry = event.nativeEvent
    if (entry == null) {
      this.setState({...this.state, selectedEntry: null})
    } else {
      this.setState({...this.state, selectedEntry: JSON.stringify(entry)})
    }
  }

  render() {
    return (

      <View style={{flex: 1}}>

        <View style={{height:80}}>
          <Text> selected entry</Text>
          <Text> {this.state.selectedEntry}</Text>
        </View>

        <View style={styles.container}>
          <PieChart
            style={styles.chart}
            logEnabled={true}
            chartBackgroundColor={processColor('pink')}
            description={this.state.description}
            data={this.state.data}
            legend={this.state.legend}

            drawSliceText={true}
            usePercentValues={false}
            centerText={'Pie center text!'}
            centerTextRadiusPercent={100}
            holeRadius={40}
            holeColor={processColor('#f0f0f0')}
            transparentCircleRadius={45}
            transparentCircleColor={processColor('#f0f0f088')}

            entryLabelColor={processColor('black')}
            entryLabelTextSize={8}

            maxAngle={350}
            onSelect={this.handleSelect.bind(this)}
          />
        </View>

      </View>
    );
  }
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
  },
  chart: {
    flex: 1
  }
});

export default PieChartScreen;