Notes

Getting started with Expo

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Expo
2 minutes
1npx expo-cli init
2
3
4cd PROJECT_SLUG
5yarn start

Upload your project to Expo

1expo login
2
3? Username/Email Address: aamnah
4? Password: [hidden]
5
6Success. You are now logged in as aamnah.

1expo publish
  • publish will deploy your proh=ject to the Expo site and you’ll be able to preview it with https://expo.io/@USERNAME/PROJECT.
  • If you have distributed your app to the app stores, that app will get automatically updated (Over The Air - OTA updates) when you publish changes to your Expo project URL.
1# install CLI tool
2npm install -g expo-cli
3
4# create a project
5cd
6expo init

It’ll ask you what template to use, i went with Tabs, then it’ll ask for project name and slug, and if you have Yarn installed it’ll ask you if you want to use Yarn to install dependencies.

The slug will be the name of the folder Expo creates for the project

1# start dev server
2npm start
3# or
4yarn start

It’ll open the app in browser http://localhost:19002/ and show a QR code that you can scan in the Expo mobile client to view the app on your phone.

Install Expo Client on your phone

Setup Android Emulator

  • Download and Install Android Studio (almost 1 GB in download, took almost half an hour)
  • Enable Developer Mode on Android. Settings > Abou Phone > System. Tap Build number 7 times.
  • Install ADB sudo apt install -y adb
  • Make sure you’re in plugdev group (use the id command to find out). If not, use this command to add yourself sudo usermod -aG plugdev $LOGNAME
1npm run android

Build

Get a apk or ipa ready to submit to Play Store or App Store

1exp build:ios
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