A base code which I almost use in every project I work on! It shows how to use ViewModels and Room together with Coroutines & Koin by Clean Architecture in Kotlin! This way you don`t need to repeat the same code in different parts of your project over & over.

All activities can extends this abstract class.

• To handle the back process for all its child fragments
• To handle the navigation of fragments(add/replace)
• To inflate the view of activities using data binding util

All fragments extend this abstract class.

• To inflate root view using data binding util
• To override a Toolbar for fragment using toolBarId if it exists
• To check the Authentication of user

It`s an interface that interacts with activities and fragments to determine ViewModel, LayoutId and ViewDataBinding of them

Sometimes we have a same login in many parts of our application. Such as checking the internet connection, showing/hiding progressBar when there is no data, or displaying a message/an error message when needed. So we put all these cases in only one ViewModel as called BaseViewModel and all our ViewModels extend it.

This class is used to customize toasts(appearance)