I want to know is there any possible way to use RecyclerView?

before this I use RecyclerView with fix height inside a ScrollView but this time i don't know height of the item.

Hint: I read all question and solution of stack question before ask this question since 4 days ago.

update: some solution learn how to scroll RecyclerView on his own but i want to show this expanded.

I want to know if there is any possible way to use RecyclerView?

Before this, I used RecyclerView with fixed height inside a ScrollView but this time I don't know the height of the item.

Hint: I read all question and solution on stack question before asking this question.

update: Some solution show how to scroll RecyclerView on its own but I want to show it expanded.