How to Create Canvas Signature Pad in React Native?

Hi Guys,

Now, let's see tutorial of how to create signature pad in react native. you can understand a concept of react native signature pad example. We will use how to implement signature pad in react native. if you have question about how to use signature pad in react native then I will give simple example with solution. Here, Creating a basic example of how to add signature pad in react native.

Let's start following example:

Step 1: Download Project

In the first step run the following command to create a project.

expo init ExampleApp

Step 2: Install and Setup

First of all you have to install react-native-signature-canvas package.

npm install --save react-native-signature-canvas

Step 3: App.js

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

import React, { useState } from "react";
import { StyleSheet, View, Image, StatusBar } from "react-native";
import Signature from "react-native-signature-canvas";

const App = () => {
    const [signature, setSign] = useState(null);

    const handleOK = (signature) => {
        console.log(signature);
        setSign(signature);
    };

    const handleEmpty = () => {
        console.log("Empty");
    };

    const style = `.m-signature-pad--footer
    .button {
      background-color: red;
      color: #FFF;
    }`;

    return (
        <View style={styles.container}>
            <View style={styles.preview}>
                {signature ? (
                    <Image
                        resizeMode={"contain"}
                        style={styles.image}
                        source={{ uri: signature }}
                    />
                ) : null}
            </View>
            <Signature
                onOK={handleOK}
                onEmpty={handleEmpty}
                descriptionText="Sign"
                clearText="Clear"
                confirmText="Save"
                webStyle={style}
                autoClear={true}
            />
            <StatusBar />
        </View>
    );
}

const styles = StyleSheet.create({
    container: {
        flex: 1,
        padding: 20,
    },
    preview: {
        backgroundColor: "#c6c3c3",
        justifyContent: "center",
        alignItems: "center",
        marginTop: 15,
        marginBottom: 20,
    },
    image: {
        width: 335,
        height: 200,
    },
});

export default App;

Run Project

In the last step run your project using the below command.

expo start

You can QR code scan in Expo Go Application on mobile.

Output :

It will help you...