How does the Android Studio autocomplete works in RecyclerView's `app:layoutManager`?

Question

I'm trying to add a custom view where I'm able to receive the path of the class by an attribute and create it in runtime and I want it to work like the app:layoutManager in RecyclerView , if you try to add the path of your class, Android Studio shows the autocomplete and even the . works. . How??

It's not a question about adding attributes , I already had a look the RecyclerView code and it is receiving a string and then, the string is used to create the instance in runtime.

I would be really thankful if someone can help me with this.

Answer 1

• I think it depends on the IDE and the best answer that i can give you is that it searches throw the children of the top class.
• For example androidx is the top class so it will search throw it's children, then recyclerview and it will go throw it like this.
• I'm not sure but i think it's using some kind of decision tree algorithm and you can see here for more information.