Example of Bottom Sheet in React Native

React Native Bottom Sheet

This is an Example of Bottom Sheet in React Native. To make a Bottom Sheet we will use BottomSheet component provided by react-native-btr.

The bottom Sheet was firstly introduced in android material design and became very popular. Different people use the bottom sheet differently but the simple example which can be seen in day to day life is when you share something. When you share any data application opens a bottom sheet to ask you “share via”. We will make the same demo with the bottom sheet in this example.

How to use Bottom Sheet Component?

<BottomSheet
  visible={this.state.visible}
  //setting the visibility state of the bottom shee
  onBackButtonPress={this._toggleBottomNavigationView}
  //Toggling the visibility state on the click of the back botton
  onBackdropPress={this._toggleBottomNavigationView}
  //Toggling the visibility state on the clicking out side of the sheet
>
{/*Bottom Sheet inner View*/}
  <View style={styles.bottomNavigationView}>
    .....
  </View>
</BottomSheet>

In this example, we will make a button to open a bottom sheet that has some social icons. We will use react-native-elements to make social icons.

Social Icons to show in Bottom Sheet

<SocialIcon
  //Social Icon using react-native-elements
  type="twitter"
  //Type of Social Icon
  onPress={() => {
    //Action to perform on press of Social Icon
    this._toggleBottomNavigationView();
    alert('twitter');
  }}
/>

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 init to make our React Native App. Assuming that you have node installed, you can use npm to install the react-native-cli command line utility. Open the terminal and go to the workspace and run

npm install -g react-native-cli

Run the following commands to create a new React Native project

react-native init ProjectName

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

react-native init ProjectName --version X.XX.X
react-native init ProjectName --version react-native@next

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

Installation of Dependencies

For installation of the dependencies, open the terminal and jump into your project using.

cd ProjectName

Run the following commands

1. For BottomSheet component you need to install react-native-btr package.
Run the following command for the installation

npm install react-native-btr --save

2. We are going to use SocialIcon component to show the Social icons so for that you have to install react-native-elements and react-native-vector-icons dependencies.
Run the following commands for the installation

npm install react-native-elements --save
npm install react-native-vector-icons --save

This command will copy all the dependencies into your node_module directory, You can find the directories in node_module. –save is optional, it is just to update the dependencies in your package.json file.

Linking of Dependency

After the updation of React Native 0.60, they have introduced autolinking feature means we do not require to link the library but they have also mentioned that some libraries need linking and react-native-vector-icons is one of those cases. So for that, we need to link the library using

react-native link react-native-vector-icons

CocoaPods Installation

Now we need to install pods

cd ios && pod install && cd ..

Code for the Bottom Sheet

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

App.js

/*Example of Bottom Sheet (Material Design)*/
import React, { Component } from 'react';
//import react in our project
import {
  StyleSheet,
  View,
  Platform,
  Text,
  Button,
  TouchableHighlight,
} from 'react-native';
//import basic react native components
import { BottomSheet } from 'react-native-btr';
//import for the bottom sheet
import { SocialIcon } from 'react-native-elements';
//import to show social icons

export default class App extends Component<{}> {
  constructor() {
    super();
    this.state = {
      //default visibility state of the bottom sheet
      visible: false,
    };
  }
  _toggleBottomNavigationView = () => {
    //Toggling the visibility state of the bottom sheet
    this.setState({ visible: !this.state.visible });
  };
  render() {
    return (
      <View style={styles.MainContainer}>
        <Text style={{ fontSize: 20, marginBottom: 20, textAlign: 'center' }}>
          Example of Bottom Sheet in React Native
        </Text>
        <Button
          onPress={this._toggleBottomNavigationView}
          //on Press of the button bottom sheet will be visible
          title="Show Bottom Sheet"
        />
        <BottomSheet
          visible={this.state.visible}
          //setting the visibility state of the bottom shee
          onBackButtonPress={this._toggleBottomNavigationView}
          //Toggling the visibility state on the click of the back botton
          onBackdropPress={this._toggleBottomNavigationView}
          //Toggling the visibility state on the clicking out side of the sheet
        >
        {/*Bottom Sheet inner View*/}
          <View style={styles.bottomNavigationView}>
            <View
              style={{
                flex: 1,
                flexDirection: 'column',
                justifyContent: 'space-between',
              }}>
              <Text style={{ textAlign: 'center', padding: 20, fontSize: 20 }}>
                Share Using
              </Text>
              <View style={{ flex: 1, flexDirection: 'row' }}>
                <SocialIcon
                  //Social Icon using react-native-elements
                  type="twitter"
                  //Type of Social Icon
                  onPress={() => {
                    //Action to perform on press of Social Icon
                    this._toggleBottomNavigationView();
                    alert('twitter');
                  }}
                />
                <SocialIcon
                  type="gitlab"
                  onPress={() => {
                    this._toggleBottomNavigationView();
                    alert('gitlab');
                  }}
                />
                <SocialIcon
                  type="medium"
                  onPress={() => {
                    this._toggleBottomNavigationView();
                    alert('medium');
                  }}
                />
                <SocialIcon
                  type="facebook"
                  onPress={() => {
                    this._toggleBottomNavigationView();
                    alert('facebook');
                  }}
                />
                <SocialIcon
                  type="instagram"
                  onPress={() => {
                    this._toggleBottomNavigationView();
                    alert('instagram');
                  }}
                />
              </View>
              <View style={{ flex: 1, flexDirection: 'row' }}>
                <SocialIcon
                  type="facebook"
                  onPress={() => {
                    this._toggleBottomNavigationView();
                    alert('facebook');
                  }}
                />
                <SocialIcon
                  type="instagram"
                  onPress={() => {
                    this._toggleBottomNavigationView();
                    alert('instagram');
                  }}
                />
                <SocialIcon
                  type="gitlab"
                  onPress={() => {
                    this._toggleBottomNavigationView();
                    alert('gitlab');
                  }}
                />
                <SocialIcon
                  type="twitter"
                  onPress={() => {
                    this._toggleBottomNavigationView();
                    alert('twitter');
                  }}
                />
                <SocialIcon
                  type="medium"
                  onPress={() => {
                    this._toggleBottomNavigationView();
                    alert('medium');
                  }}
                />
              </View>
            </View>
          </View>
        </BottomSheet>
      </View>
    );
  }
}
const styles = StyleSheet.create({
  MainContainer: {
    flex: 1,
    margin: 2,
    justifyContent: 'center',
    alignItems: 'center',
    paddingTop: Platform.OS === 'ios' ? 20 : 0,
    backgroundColor: '#E0F7FA',
  },
  bottomNavigationView: {
    backgroundColor: '#fff',
    width: '100%',
    height: 250,
    justifyContent: 'center',
    alignItems: 'center',
  },
});

To Run the React Native App

Open the terminal again and jump into your project using.
cd ProjectName
To run the project on an Android Virtual Device or on real debugging device
react-native run-android
or on the iOS Simulator by running
react-native run-ios (macOS only).

Output Screenshots

IOS

Android

          

Output in Online Emulator

That was the example of Bottom Sheet in React Native. 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. 🙂


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