anyway/frontend/android/README.md

Android Setup

Keystore setup

keytool -genkey -v -keystore release.keystore -keyalg RSA -keysize 2048 -validity 10000 -alias release

• This is required to store local credentials securely (not used for now).
• But necesseary in order to restrict the particular api key to a particular app (through the sha1 of the associated keystore).

Building and secret credentials

Following the guide under https://developers.google.com/maps/flutter-package/config#android_1.

• Add the following to android/build.gradle:

  buildscript {
      dependencies {
          classpath "com.google.android.libraries.mapsplatform.secrets-gradle-plugin:secrets-gradle-plugin:2.0.1"
      }
  }
  

• Add the following to android/app/build.gradle:

  plugins {
      // ...
      id 'com.google.android.libraries.mapsplatform.secrets-gradle-plugin'
  }
  

• Add the credentials to android/secrets.properties:

  MAPS_API_KEY=YOUR_API_KEY
  

• Reference the credentials in android/app/src/main/AndroidManifest.xml:

  <meta-data
      android:name="com.google.android.geo.API_KEY"
      android:value="${MAPS_API_KEY}" />
  

Using the credentials in CI

• Add the base64 encoded credentials to the repository secrets (e.g. ANDROID_SECRETS).

  base64 -i android/secrets.properties
  

• Use the following in the CI script:

  echo {{ secrets.ANDROID_SECRETS }} | base64 -d > android/secrets.properties