Include Firebase Analytics in library

Question

I have multiple Android apps that all include a custom library. This library is the core of the apps, and each app just contains a main activity extending an activity from t

Answer 1

You should add the google-services.json file and apply the google-services plugin to your app module, not the library project.

Most of the resources generated by the plugin are used dynamically and won't be necessary for the library to compile. However, if the library does use one of those resources explicitly (and therefore can't compile without it), the library can include a placeholder resource in its own strings.xml file which will eventually be overridden by the properly configured app.