Configuring for Android Builds

In order to generate the needed files and publish the wallet to the Google Play Store several configuration steps are needed.

Enable the Android build

We allow white labeling both Android and iOS applications, but we suggest doing them one by one to make the PR review easier.

In the ../build-config.json file set build-android: true.

Setup App in Google Play Console

1. Log in or sign up for a Google Android Developer account

2. Create your new app (instructions from Google's Help Center)

Setup App in Firebase

1. Sign up for a Firebase account Note: Android and iOS apps can share the same Firebase account

2. Register your app as an Android app (instructions from Firebase's Help Center)

Use the same package name that you have defined in the General Setup step.

3. Go to Project Settings and download the google-services.json file

4. Replace the google-services.json file in ../android/app/src/google-services.json

Modify Strings

Update the app_name setting in ../android/app/src/main/res/values/strings.xml with the name of your app.

Generate Android Certificates

Android requires that all apps be digitally signed with a certificate before they can be installed. In order to distribute your Android application via Google Play store it needs to be signed with a release key that then needs to be used for all future updates.

You can generate the certificate using the commands below.

# Generate the certificate using keytool. You need to have Java JDK installed https://reactnative.dev/docs/signed-apk-android
# IMPORTANT: This is a interactive cli, and will ask you to provide a password to encrypt the certificate
# IMPORTANT: Do not rename the files
# Make sure to save this password, it will be needed later on
sudo keytool -genkey -v -keystore ../android-release.keystore -alias key0 -keyalg RSA -keysize 2048 -validity 10000

This command will replace the ../android-release.keystore file.

Update the ../packaging.config file using the password created while generating the certificate.

RELEASE_STORE_PASSWORD=

RELEASE_KEY_PASSWORD=