CAS4 mobile app

This repo refers to a React Native mobile app used for a project for the Context Aware System class at the University of Bologna.

Development

You need:

• Node v21.7.1. We strongly suggest fnm or nvm for Node versions management.
• PnpM or NPM (better the first one).

After that you need to edit the .env file and set up:

• EXPO_PUBLIC_API_URL: refers to the backend URL.

• EXPO_PUBLIC_ALERTD_URL: refers to the alertd URL.

And start the Expo app.

pnpm run start

Deployment

This work is made by Expo but you need an extra setup if you want that everything go up well.

First of all you log in

eas login

Now you set up Push Notifications.

Configuration and Build for Android

1. Generate a release key

keytool -genkey -v -storetype JKS -keyalg RSA -keysize 2048 -validity 10000 -storepass KEYSTORE_PASSWORD -keypass KEY_PASSWORD -alias cas4 -keystore release.keystore -dname "CN=John Doe, OU=Unknown, O=Unknown, L=Bologna, ST=Italy, C=IT"

2. Build Android app

eas build --platform android

3. Download the artifact from Expo page

4. Create APKS from the AAB file

java -jar bundletool-all-1.17.1.jar build-apks --bundle=application-XXXX.aab --output=cas.apks --mode=universal --ks android/keystores/release.keystore --ks-key-alias=cas4