helloworld

Template project for NPE Toolkit. Also a way to share books you like!

Creating your app

yarn create expo-app your-app-name helloworld

Commands

| Command | Action | | ----------------- | ------------------------------------------------------------------------- | | yarn web | Runs web app locally | | yarn go:ios | Runs app in Expo go on iOS simulator or attached device | | yarn start:ios | Runs app in your own iOS build (need to have run build:ios and installed) | | yarn go:android | Runs app in Expo go on Android emulator or attached device | | yarn admin | Runs admin web UI locally | | yarn build:web | Runs a full web build in preparation for deploying | | yarn build:ios | Builds and deploys your own iOS app build using Expo's EAS service. |

Creating iOS builds

There are two options for running your app on iOS

• Running in Expo Go. With Expo Go, you use Expo's existing iOS app, and serve the JS from your local server or from a JS deployment. This is an ideal flow for developer builds and early testing.
• Building your own iOS app. Your own iOS binary has benefits, even beyond having your own app icon and startup flow. You can use more React Native libraries and features, and it is required to share the app beyond a handful of people

For initial development, yarn ios will run in Expo Go. When you're ready to have your own iOS build, you'll need both an Expo account and an Apple Developer account, and then run yarn build:ios for an emulator build, or yarn build:ios -e dev for a developer device build. After running these, yarn ios will run in your own app.

There are four iOS build types:

• sim runs in the Simulator and uses Expo dev client, that will ask user where to load JavaScript from
• dev runs on a real iOS device, but otherwise operates like sim
• alpha will read from your deployed JS and supports dynamic updates. This uses Apple's "ad hoc" build feature which lets you use the app on a maximum of 100 devices, which need to be listed in your developer account
• prod is your live build for the app store. Although this build supports dynamic updates, Apple has policies that limit how your app should change without an official App Store release, and generally new features will go live with a new release