Our great sponsors
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fyi
Little bits of information that you may find useful when interacting with Expo tools and service. Append the markdown filename to https://expo.fyi/ to get a quick link to it.
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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
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All the code for this tutorial can be found in this repo.
Right now, Realm is not compatible with Expo Managed Workflows. In a managed Workflow Expo hides all iOS and Android native details from the JavaScript/React developer so they can concentrate on writing React code. Here, we need to prebuild our App, which will mean that we lose the nice Expo Go App that allows us to load our app using a QR code.
To help with offline data management and syncing between different devices, running different OSes, we can use MongoDB’s Realm. To create a single code base that works well in both platforms we can use React Native. And the simplest way to create React Native Apps is using Expo.
The React Native Project, allows you to create iOS and Android apps using React “a best-in-class JavaScript library for building user interfaces”. So if you’re an experienced Web developer who already knows React, using React Native will be the natural next step to create native Mobile Apps.
Make sure you are NOT on the latest version of node, however, or you will see errors about unsupported digital envelope routines. You need the LTS version instead. Get the latest LTS version number from https://nodejs.org/ and then run:
Any code editor. I’ll be using Visual Studio Code as it has plugins to help with React Native Development, but you can use any other editor.