Using Firebase in a multi-module project
问题 I have a multi-module multi-flavor android project, the modules are as follows: core module, which is an android library that holds common stuff, including library dependencies. authentication module, which is as the name suggests, a module that contains a bunch of UI activities and is responsible for authenticating users. It's also the module that has the launcher activity. user module, which is another android library module. It is responsible for handling user profile UI, user data, along