Tools, libraries, and services are an important part of every developer’s life, no matter which environment you’re developing for. And React Native is no exception. In this article, I’ll walk you through some of the best UI frameworks, libraries, components, development tools, and web services which will make you a happier and more productive React Native developer.
Text Editors and IDEs
Visual Studio Code is a text editor which has built-in IntelliSense, debugging, and Git integration capabilities. What makes it really good for React Native development is its React Native tools extension. This allows you to execute React Native commands from the command palette, add IntelliSense for React Native APIs, and debug code within the editor itself.
For more information regarding how to set up Visual Studio Code for React Native, check out this blog post: VSCode for React Native.
If you’re using Atom, you can install the Nuclide plugin. This plugin was specifically created for working with React Native, Flow, and Hack projects. It has a built-in debugger and element inspector with all the features you’re used to in Chrome Developer Tools. Flow support means that you get autocomplete, type-hinting, and code diagnostics out of the box.
If you want to explore more IDE and editor options, check out this blog post on the Top 10 Editors for React Native.
Development tools have a wide scope, so I’ll be grouping each tool based on its focus:
- code quality
When it comes to SDKs for React Native, nothing beats Expo. Expo allows you to easily prototype an app without the need for Android Studio or Xcode. It includes a set of components and libraries to help you speed up your development.
The Expo workflow consists of the following:
- Create a new project using create-react-native-app.
- Write the code in your favorite text editor.
- Run the app using the Expo client app.
There’s no need to connect your phone to your computer. Simply scan the QR code on your terminal using the Expo client app, and it will automatically run your app. If you’re using Genymotion, Expo supports that too.
The only disadvantage when using Expo is that you cannot include any custom package which uses the device’s native functionality. Expo already includes a number of commonly used native packages such as the Camera, Facebook, and Map. But if you need to use a package that they don’t already support, then you’ll have to "eject" your app. At that point your app will be as if it was created with
react-native init, and you’ll also lose the ability to run it using the Expo client app.
If you’re using Sublime Text, here’s a good tutorial on how you can configure it so that you can have real-time feedback on the quality of your code while you’re coding: Sublime Linting for React and ES6. If you’re using another editor or IDE, be sure to look for a corresponding plugin which uses ESLint.
To get started using Flow, here’s a tutorial on how you can set up Flow for your React Native projects.
Enzyme is a testing utility for React which allows you to assert, manipulate, and traverse your component’s output. It provides methods such as
shallow() to "shallowly" render your components,
find() to traverse the rendered component, and
expect() to assert the props or the content rendered within the component.
You can follow this guide to Using enzyme to Test Components in React Native to make your React Native app testable with enzyme. If you’re new to enzyme, you can read this tutorial on Testing React Components with Enzyme and Mocha.
Reactotron is a desktop app that allows you to debug React and React Native apps. Some of its key features include inspecting, modifying, and subscribing to the app state, tracking HTTP requests made through the app, benchmarking the app performance, and tracking errors. If you’re using Redux, you can even dispatch actions and track sagas from within Reactotron.
Boilerplates and UI Frameworks
Snowflake is a boilerplate for full-stack React Native development. It includes everything from the front-end to the back-end of the app. So if you just want a tool that can help you quickly get started then you might find Snowflake useful. You can read the notes for more information on what packages and tools are used to put it up.
Alternatively, you can use Ignite. It's a command-line tool which also includes a boilerplate, generators, style guide for UI components, API Testing Tool, and more.
React Native already comes with UI components which you can use for user interaction. The problem is that they only have the most basic styling in order for each component to be distinguished for what it is (e.g. button, checkbox). If you want to add custom styles, you have to write your own CSS code.
This is where NativeBase comes in. It allows your app to have a truly native look and feel by implementing the same design used in native Android (Material Design) and iOS (Human Interface Guidelines) apps. Out of the box, you get custom components such as Floating Action Buttons, Spinners, and best of all, form components.
Libraries and Components
React Native has a huge community behind it, so there are lots of libraries and components that you can use. We could spend all day talking about these, so to keep things brief, I’ll focus on the following areas:
- state management
- commonly used components and libraries
React Navigation allows you to easily implement navigation in your React Native apps through the use of its built-in navigators such as the Stack Navigator, Tab Navigator, and Drawer Navigator. That's not all, though: in addition to in-app navigation, it also includes deep linking, Redux integration, and web integration. This makes it a really robust library for implementing navigation.
MobX provides the functionality to update and manage the app state used by React. What makes it a good candidate for state management in React is its simplicity and testability. It also has a short learning curve, so things like async functions and computed values are already handled behind the scenes.
For bigger and more complex applications, Redux is still recommended. This is because MobX is very liberal, not unlike Redux, which provides strict guidelines on how the state should be managed. So it's a wiser choice for bigger projects with more people working on them.
React Native already has an animation API built into it. In fact, there’s not just one, but two APIs for working with animation: Animated API and LayoutAnimation. Those two are very powerful but can be cumbersome, especially if all you want to do is apply basic animations such as moving an object up and down or making it bounce. In such cases, components like Animatable come in handy.
Commonly Used Components and Libraries
Here’s a list of components and libraries that are commonly used in React Native projects. These are compatible with both Android and iOS devices:
- styled-components: allows you to write CSS code to style your React components.
- react-native-calendar: for showing a calendar that users can interact with.
- react-native-datepicker: for picking dates and times.
- react-native-progress: for creating progress bars and spinners.
- react-native-spinkit: a collection of loading indicators.
- Vector Icons: allows you to use icons from your favorite icon font sources such as Font Awesome and Material Icons.
- react-native-swiper: turns a collection of images or containers into swiping components.
- react-native-scrollable-tab-view: tabbed navigation that you can swipe between.
- react-native-lightbox: for viewing images in fullscreen pop-overs.
- react-native-maps: allows you to integrate Google Maps into your apps. Not all features available in the Google Maps API are available, but the functionality it provides should be enough in most cases.
- SGListView: a memory-friendly implementation of React Native’s built-in ListView component. If you need to show huge lists in your app, use this instead of ListView.
- Formik: makes dealing with forms in React Native less painful. It allows you to get values in and out of form state, validate your forms, and handle their submission.
- react-native-i18n: for implementing internationalization in your apps.
- react-native-push-notification: implements local and remote push notifications.
- InstantSearch: a collection of components for implementing search.
- react-native-fs: allows you to access the device’s native filesystem.
- react-native-camera: a camera component which allows you to take photos and videos from your app.
- react-native-video: for playing videos from your filesystem or from a URL.
- react-native-sqlite-storage: for storing and manipulating data from an SQLite database.
- react-native-store: a key-value store based on AsyncStorage.
- react-native-webrtc: for implementing WebRTC.
You can build serverless apps and ease the deployment of your React Native apps by using web services. There are a plethora of web services out there, but I’ll focus on the following areas:
- push notifications
- code updates
- continuous integration
Not all features are available in the developer edition, but in most use cases you should be fine with just the developer edition because it includes the core features such as the Object Database, Realtime Synchronization, and Authentication. Here's a comparison of what you get for each edition: Realm Products and Pricing.
If Realm is too much for your needs, you can always stick with the AsyncStorage API that comes with React Native.
Fabric is an all-in-one service that allows you, among other things, to add analytics in your app. There’s Answers, which gives you real-time statistics on how your app is being used. This includes the number of active users, the session length, and retention rate. There’s also Crashlytics, which gives you powerful crash reporting capabilities. All of it happens in real time, and you can view it in Fabric’s real-time dashboard. You can use the Fabric library to easily set up Fabric for your React Native app.
If you’d rather stick with a tried and tested solution like Google Analytics, there’s also a library that allows you to do that.
There’s really no competition when it comes to implementing push notifications in apps. Firebase Cloud Messaging (previously known as Google Cloud Messaging) allows you to send push notifications to both Android and iOS apps. You can use the react-native-fcm package to communicate with FCM from your app.
Bitrise is a Continuous Delivery Service for mobile app development. It allows you to run your tests, build the app, and automatically push it to your users’ devices every time you deploy your code.
Fastlane is a collection of tools that automate the build and release process for Android and iOS apps. For iOS, it handles tasks such as running your tests, generating screenshots, code signing, and releasing the app to the app store. It also includes beta testing tools such as Pilot and Boarding. Pilot allows you to upload your app to iTunes Connect and manage your TestFlight beta testers right from the command line. Boarding creates a signup page for TestFlight beta testers.
The tools are more geared towards iOS deployment, but you can also benefit if you’re deploying Android apps. Currently, there are only two tools available for Android deployment: Supply and Screengrab.
Supply allows you to automate the uploading of assets such as the app icon, promo graphics, and screenshots of your app. It also allows you to update your existing apps on the Google Play Store.
Screengrab, on the other hand, automates the generation of screenshots for multiple devices. Each screenshot can also be localized if your app supports multiple languages.
That’s it! In this article, you’ve learned about some of the tools, libraries, and services that you can use when developing React Native apps. What about you? What are your go-to tools when it comes to developing apps in React Native?
And while you're here, check out some of our other posts on React Native app development!
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