React Native Custom Star Rating Bar

Custom Star Rating Bar

React Native Custom Star Rating Bar for displaying interactive star ratings. Compatible with both iOS and Android. After working on any product we need some Feedback to analyze the quality of our product, A simple and interactive Rating Bar is the easiest way to get feedback. So to integrate a Start Rating Bar here is a simple example.

First of all, you need to have images of the filled and empty stars. You can use any image of your choice.

Render Using

const CustomRatingBar = () => {
  return (
    <View style={styles.customRatingBarStyle}>
      {maxRating.map((item, key) => {
        return (
          <TouchableOpacity
            activeOpacity={0.7}
            key={item}
            onPress={() => setDefaultRating(item)}>
            <Image
              style={styles.starImageStyle}
              source={
                item <= defaultRating
                  ? {uri: starImageFilled}
                  : {uri: starImageCorner}
              }
            />
          </TouchableOpacity>
        );
      })}
    </View>
  );
};

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.

Code

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

App.js

// React Native Custom Star Rating Bar
// https://aboutreact.com/react-native-custom-star-rating-bar/

// import React in our code
import React, {useState} from 'react';

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

const App = () => {
  // To set the default Star Selected
  const [defaultRating, setDefaultRating] = useState(2);
  // To set the max number of Stars
  const [maxRating, setMaxRating] = useState([1, 2, 3, 4, 5]);

  // Filled Star. You can also give the path from local
  const starImageFilled =
    'https://raw.githubusercontent.com/AboutReact/sampleresource/master/star_filled.png';
  // Empty Star. You can also give the path from local
  const starImageCorner =
    'https://raw.githubusercontent.com/AboutReact/sampleresource/master/star_corner.png';

  const CustomRatingBar = () => {
    return (
      <View style={styles.customRatingBarStyle}>
        {maxRating.map((item, key) => {
          return (
            <TouchableOpacity
              activeOpacity={0.7}
              key={item}
              onPress={() => setDefaultRating(item)}>
              <Image
                style={styles.starImageStyle}
                source={
                  item <= defaultRating
                    ? {uri: starImageFilled}
                    : {uri: starImageCorner}
                }
              />
            </TouchableOpacity>
          );
        })}
      </View>
    );
  };

  return (
    <SafeAreaView style={styles.container}>
      <View style={styles.container}>
        <Text style={styles.titleText}>
          React Native Custom Star Rating Bar
        </Text>
        <Text style={styles.textStyle}>
          How was your experience with us
        </Text>
        <Text style={styles.textStyleSmall}>
          Please Rate Us
        </Text>
        {/* View to hold our Stars */}
        <CustomRatingBar />
        <Text style={styles.textStyle}>
          {/* To show the rating selected */}
          {defaultRating} / {Math.max.apply(null, maxRating)}
        </Text>
        <TouchableOpacity
          activeOpacity={0.7}
          style={styles.buttonStyle}
          onPress={() => alert(defaultRating)}>
          {/* Clicking on button will show the rating as an alert */}
          <Text style={styles.buttonTextStyle}>
            Get Selected Value
          </Text>
        </TouchableOpacity>
      </View>
    </SafeAreaView>
  );
};

export default App;

const styles = StyleSheet.create({
  container: {
    flex: 1,
    backgroundColor: 'white',
    padding: 10,
    justifyContent: 'center',
    textAlign: 'center',
  },
  titleText: {
    padding: 8,
    fontSize: 16,
    textAlign: 'center',
    fontWeight: 'bold',
  },
  textStyle: {
    textAlign: 'center',
    fontSize: 23,
    color: '#000',
    marginTop: 15,
  },
  textStyleSmall: {
    textAlign: 'center',
    fontSize: 16,
    color: '#000',
    marginTop: 15,
  },
  buttonStyle: {
    justifyContent: 'center',
    flexDirection: 'row',
    marginTop: 30,
    padding: 15,
    backgroundColor: '#8ad24e',
  },
  buttonTextStyle: {
    color: '#fff',
    textAlign: 'center',
  },
  customRatingBarStyle: {
    justifyContent: 'center',
    flexDirection: 'row',
    marginTop: 30,
  },
  starImageStyle: {
    width: 40,
    height: 40,
    resizeMode: 'cover',
  },
});

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

Output Screenshots

Output in Online Emulator

This is how you can integrate the Star Rating bar in your React Native Application. If you have any doubts or 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. 🙂