Expo

We asked Julien Lavigne du Cadet, VP of Engineering at Zoe, to spend some precious moments sharing about the whirlwind week he spent building and scaling the COVID-19 Symptom Tracker with a tiny team of volunteers from Zoe engineering and design.

Today, we’re announcing our first release of the decade! Expo SDK v37.0.0 (which uses React Native 0.61 internally) is our Spring release, but also inaugurates a new, bolder approach to empowering developers.

On every React Native project that I was involved, there was always a most-feared moment: checking if your app is running as expected (and as similar as possible to the UIs shared by the designer) on lots of smartphones and iOS/Android version.

SDK 36 is a maintenance release: along with the new version of React Native, it includes many bugfixes, consistency improvements, and quality of life enhancements.

Making pixel-perfect layouts on mobile is hard. Even though React Native makes it easier than its native counterparts, it still requires a lot of work to get a mobile app to perfection.

Unit testing with Jest is an integral part of projects that are built with React. But we’ve also found that sometimes entire classes of bugs slip through with several Jest configurations, such as the preset included with React Native, and the testing never seems to really cover everything.

Expo SDK v35.0.0 is out today and is based on React Native 0.59.8, the same React Native version as SDKs 33 and 34.

How to use Hover, Focus, and Active states in your universal app.

Now that the mobile apps have been live in production for over a year, we’d like to share our development experience with the broader community, including a deep dive into a few internal tools powered by Expo JavaScript bundles and app manifests.

React Native has a Share module to use the platform share functionality, but in this case we want to send the link to the user’s contacts so that’s not what we want to use.

Expo SDK v34.0.0 is out today and is based on React Native 0.59.8, the same React Native version as SDK 33.

What happens when you mix a bit of Tequila with Expo and Next.js? You obtain a nice Margarita, a subtle cocktail of cross-platform goodness!

Starting today, you can use as little or as much of the Expo SDK as you like in any React Native app. We’ve spent a lot of time building and maintaining these cross-platform APIs for native features, and we’re happy to finally share them with the entire React Native ecosystem and to continue evolving them as a together.

Before reading the rest of the tutorial and going further, just try to remember that you are only learning about Redux because it will make things easier for you, and not more difficult.

Let’s create a basic chat application that works on every iOS and Android device. To do this we will use a framework called Expo!

In this article, we will quickly build a chat app using React Native, Expo and Microsoft’s Bot Framework.

Taking a Picture Every 30 Seconds and Sending It To A Server.

Not all developers are aware of how useful React Native actually is. Here are some tips on how to create an audio and video recording app by using Expo development tools.

No tricky GL knowledge required (!)

Today, we’re happy and excited to announce the release of Expo Snack.

Today I'ma run you through how to make a web app with Expo. The steps are really just expo init, expo build:web, netlify deploy. In my usual distracted fashion I walk you through these steps in 12 minutes.

Writing truly universal code and deploying it everywhere.

In this lesson we’re going to create a custom font icon for our expo project.

You can use this module to Localize your app, and access the locale data on the native device. Using the popular library i18n-js with expo-localization will enable you to create a very accessible experience for users.

In this tutorial we will be creating a 3D ARKit app that works on iOS with React Native. We'll use expo-three & expo-graphics to write WebGL code on mobile.

In this tutorial we will be creating a 3D app that works on both web and mobile. We'll use expo-three & expo-graphics to write WebGL code on mobile.

Creating the user in the Firebase Authentication system is just one part of the process. How do we then use the user's details in our Firebase Realtime Database? In part 2 of this 2 part series let's add the logged in user to the firebase database.

Most tutorials only teach you how to implement the Google login that's given in the documentation. What do you do after you have logged the user in? Where do you save the user or what credentials do you save?

Learn how to use pixi.js to make mobile 2D video games. Really this is just the setup but you can use most pixijs features with Expo React Native.

Learn how to install expo-firebase-messaging in your app, then send a data-only message to your app using the terminal bash.

Learn how to install expo-firebase-messaging in your app, then send a data-only message to your app using the terminal bash. We plan to add support for Firebase in Expo, but this will take some time, until then here is how you can get started using notifications outside of Expo. Expo-Firebase is a port of the popular library react-native-firebase, which enables you to use all the great native Firebase features in React Native.

Learn how to use native Firebase features in an ejected ExpoKit project. You will need an Apple computer to use XCode 🤷‍♀️ sorry windows users. We plan to add support for Firebase in Expo, but this will take some time, until then here is how you can integrate some Firebase libraries with Expo. Complex services like Dynamic Links, Invites, Crashlytics, Notifications/Messaging, would require a follow up video. Leave a comment if you wanna see these tutorials 💙

Learn how to use native Firebase features in an ejected ExpoKit project. You can use any computer to set this up! We plan to add support for Firebase in Expo, but this will take some time, until then here is how you can integrate some Firebase libraries with Expo.

Notes on custom Icons and Typographies in React Native using Expo.

These are my notes from upgrading all the starter kits from https://react-native.shop/ to expo 26.

Today we'll be taking a look at a really cool library called Rematch. People who are new to react tend to find that learning redux can be a pain. Rematch makes using redux pretty painless and really simple!

Today we'll be uploading an Expo app to the iOS App Store. First we will download and setup expo, then we will bootstrap an Expo project. We'll make some important changes relevant to deployment and then we'll start building the IPA. (App file, not India Pale Ale).

Today we'll be walking through how to use Facebook Authentication in your Expo experience...