Have you implemented projects involving interaction of multiple modules or components?

Yes, in Android projects, interaction between multiple modules or components is often implemented. For example, an application may have a separate module for network operations, another for database management, and a UI module. Interaction between them can be facilitated using patterns such as MVVM or MVP, as well as Android architectural components like ViewModel and LiveData.

An example of interaction between ViewModel and repository:

class UserRepository {
    fun getUserData(): LiveData<User> {
        // Fetch data from network or database
    }
}

class UserViewModel(private val repository: UserRepository) : ViewModel() {
    val userData: LiveData<User> = repository.getUserData()
}

Thus, modules are separated by responsibility and interact through well-defined interfaces.