The Code

Almost every mobile app needs to collect something from the user: a username, a password, a search query, a message, or a payment detail.  In React Native, all of that starts with one core component: TextInput . This guide to React Native text input walks you through everything you need: the basics of the TextInput component, managing its value with state, handling events, customizing the keyboard, validating input, building forms, and avoiding common mistakes.  Every section includes code you can copy into your own project. What Is the TextInput Component in React Native? TextInput is a built-in React Native component that lets users type text into your app using the device keyboard. It's the mobile equivalent of the HTML <input> and <textarea> elements, and it maps to native text fields on both iOS and Android, so it feels natural on each platform. You import it directly from react-native : import { TextInput } from "react-native"; Basic Usage: Your Fir...

If you want to build fast, interactive web applications, learning React fundamentals is one of the smartest moves you can make.  React is a JavaScript library created at Facebook (now Meta) and used by companies of every size to build user interfaces. It powers everything from small side projects to huge platforms. In this guide, you'll learn the core concepts every beginner needs: what React is, how JSX works, how to build components, how to manage data with props and state, how to use hooks, and how to render lists and handle events. Each section includes simple code examples so you can follow along. What Is React and Why Should You Learn It? React is an open-source JavaScript library for building user interfaces, especially single-page applications where content updates without reloading the page. Instead of manipulating the page directly, you describe what the UI should look like for a given set of data, and React updates the page efficiently when that data changes. Key Benefi...

If you are building a mobile app with React Native, you will quickly run into two terms: Core Components and Native Components.  They sound similar, and they are closely related, but they are not the same thing.  Understanding the difference helps you write cleaner code, debug faster, and decide when you need to go beyond what React Native gives you out of the box. In this guide, you will learn what each term means, how React Native turns your JavaScript into real Android and iOS UI, and when it makes sense to build a custom native component. What Are Views in Android and iOS Development? In Android development, you write UI using Views . In iOS, you use UIViews . A view is the basic building block of the screen: a text label, an image, a button, a scrolling list, and a container that holds other views are all views. Every visible thing in a native app is a view, and views can be nested inside each other to form the full screen. React Native builds on this idea. What Are Nativ...