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I'm trying to use react-native-gifted-charts to fill the visible space between my header and footer components. There won't be any vertical scroll, so my phone screen will look something like:

However whenever I try to achieve this within RN, it doesn't seem to do what I'm wanting...

const TestBarChart = () => {
  const barData = [
    { value: 30, label: 'Jan' },
    { value: 50, label: 'Feb' },
    { value: 70, label: 'Mar' },
    { value: 40, label: 'Apr' },
  ];

  return (
    <View style={styles.container}>
      <View style={styles.header}>
        <Text>Header Component</Text>
      </View>

      <View style={styles.chartContainer}>
        <BarChart
          barData={barData}
          width={300}
          height={300} // Manually setting height
        />
      </View>

      <View style={styles.footer}>
        <Text style={styles.footerText}>Footer Component</Text>
      </View>
    </View>
  );
};

const styles = StyleSheet.create({
  container: {
    flex: 1
  },
  header: {
    height: 60,
    backgroundColor: '#6EC6FF'
  },
  chartContainer: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
  },
  footer: {
    height: 60,
    backgroundColor: '#FFC6A5'
  }
});

export default TestBarChart;

AI suggests to me that I replace the height={300} with height={'100%'}, but that makes things... interesting.

I'm trying to use react-native-gifted-charts to fill the visible space between my header and footer components. There won't be any vertical scroll, so my phone screen will look something like:

However whenever I try to achieve this within RN, it doesn't seem to do what I'm wanting...

const TestBarChart = () => {
  const barData = [
    { value: 30, label: 'Jan' },
    { value: 50, label: 'Feb' },
    { value: 70, label: 'Mar' },
    { value: 40, label: 'Apr' },
  ];

  return (
    <View style={styles.container}>
      <View style={styles.header}>
        <Text>Header Component</Text>
      </View>

      <View style={styles.chartContainer}>
        <BarChart
          barData={barData}
          width={300}
          height={300} // Manually setting height
        />
      </View>

      <View style={styles.footer}>
        <Text style={styles.footerText}>Footer Component</Text>
      </View>
    </View>
  );
};

const styles = StyleSheet.create({
  container: {
    flex: 1
  },
  header: {
    height: 60,
    backgroundColor: '#6EC6FF'
  },
  chartContainer: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
  },
  footer: {
    height: 60,
    backgroundColor: '#FFC6A5'
  }
});

export default TestBarChart;

AI suggests to me that I replace the height={300} with height={'100%'}, but that makes things... interesting.

• reactjs
• react-native

Share Improve this question Follow asked Mar 30 at 17:45 physicsboyphysicsboy 6,3782222 gold badges7777 silver badges139139 bronze badges

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1 Answer 1

Sorted by: Reset to default 1

The gifted charts library expects a numeric height value, so using a percentage string (like '100%') won't work

Below Is the Solution code for your problem

import React, { useState } from 'react';
import { View, Text, StyleSheet, Dimensions } from 'react-native';
import { BarChart } from 'react-native-gifted-charts';

const TestBarChart = () => {
  const [chartHeight, setChartHeight] = useState(0);
  const barData = [
    { value: 30, label: 'Jan' },
    { value: 50, label: 'Feb' },
    { value: 70, label: 'Mar' },
    { value: 40, label: 'Apr' },
  ];

  return (
    <View style={styles.container}>
      <View style={styles.header}>
        <Text>Header Component</Text>
      </View>

      {/* Chart Container */}
      <View
        style={styles.chartContainer}
        onLayout={(event) => {
          const { height } = event.nativeEvent.layout;
          setChartHeight(height);
        }}
      >
        {/* Only render the chart after we've measured the height */}
        {chartHeight > 0 && (
          <BarChart
            barData={barData}
            width={Dimensions.get('window').width - 90} // adjust as needed
            height={chartHeight}
          />
        )}
      </View>

      <View style={styles.footer}>
        <Text style={styles.footerText}>Footer Component</Text>
      </View>
    </View>
  );
};

const styles = StyleSheet.create({
  container: {
    flex: 1,
  },
  header: {
    height: 60,
    backgroundColor: '#6EC6FF',
    justifyContent: 'center',
    alignItems: 'center',
  },
  chartContainer: {
    flex: 1,
    marginLeft: 10,
    marginRight: 10,
    marginBottom:60,
    marginTop:60,
    justifyContent: 'center',
    alignItems: 'center',
  },
  footer: {
    height: 60,
    backgroundColor: '#FFC6A5',
    justifyContent: 'center',
    alignItems: 'center',
  },
  footerText: {
    fontWeight: 'bold',
  },
});

export default TestBarChart;

Test Image

First get the hight 0f the Chart Container

• The onLayout prop on the chartContainer view captures its height after layout. This height is stored in the chartHeight state variable.

Passing a Numeric Height to bar chart

• Once the container's height is known, it is passed as the height prop to the BarChart, ensuring the chart fills the available space.

Render Bar Chart According to condition

本文标签： reactjsMake reactnativegiftedcharts full screen between componentsStack Overflow