React Native Credit Card Input

Abstract

1. Introduction

Example on Expo Snack - Easy (and good looking) credit-card input for your React Native Project

2. Objective

Easy, cross-platform credit-card input for your React Native Project! Start accepting payment 💰 in your app today!

This project demonstrates how TypeScript, React Native, Android can be applied to a real-world Mobile App Development problem.

3. Key Features / Modules

• Skeuomorphic credit-card
• Lite version for smaller screens / compact layout
• Credit-card input validations & formatting while you're typing
• Form is fully navigatable using keypad
• Works on both Android, iOS and Web!

4. Technology Stack

5. System Requirements

General requirements for this technology stack — check the README for exact versions.

• Node.js (LTS) and npm / yarn / pnpm
• VS Code or any code editor
• Git (to clone the repository)

6. Installation & Setup

git clone https://github.com/sbycrosz/react-native-credit-card-input.git
cd react-native-credit-card-input

yarn add react-native-credit-card-input

import { CreditCardInput, LiteCreditCardInput } from "react-native-credit-card-input";

<CreditCardInput onChange={_onChange} />
// or
<LiteCreditCardInput onChange={_onChange} />

// Note: You'll need to enable LayoutAnimation on android to see LiteCreditCardInput's animations
// UIManager.setLayoutAnimationEnabledExperimental(true);

_onChange => form => console.log(form);

// will print:
{
  valid: true, // will be true once all fields are "valid" (time to enable the submit button)
  values: { // will be in the sanitized and formatted form
  	number: "4242 4242",
  	expiry: "06/19",
  	cvc: "300",
  	type: "visa", // will be one of [null, "visa", "master-card", "american-express", "diners-club", "discover", "jcb", "unionpay", "maestro"]
  },
  status: {  // will be one of ["incomplete", "invalid", and "valid"]
	number: "incomplete",
	expiry: "incomplete",
	cvc: "incomplete",
  },
};

Full setup instructions are in the project README.

7. Future Enhancements

Suggested extensions you can add to make this your own project.

• Add push notifications with Firebase Cloud Messaging
• Add offline support with local caching
• Publish an internal test build on the Play Store

8. Viva / Review Questions

Common questions examiners ask for projects in this domain.

1. Which framework is used and why (native vs cross-platform)?
2. How is app state managed across screens?
3. Where is the data stored — locally, Firebase or a REST backend?
4. How are permissions (camera, location, storage) handled?
5. How would you publish this app to the Play Store / App Store?

9. Source Code & License

This project is developed by sbycrosz and published on GitHub under the MIT License. Please follow the license terms and credit the original author when you use or modify this code.