如何在不使用recyclerview中的库的情况下从服务器分页数据？

Question

I have RecyclerView with CardView Adapter. I want to fetch data from url with several pages. How do I paginate data?

When the user is done with the first page I want a progressbar at the bottom of the page(Like Facebook app). I have to do this without using any libraries. Does anyone have a solution for this?

PS : I dont have any url for pagination. Please send url too (I am just a beginner.Please be specific while explaining)

Answer 1

Essentially what you need to do is detect the point at which the user has scrolled far enough that you need to get the next bit of data. In order to do that you'll have to extend RecyclerView's OnScrollListener and override the OnScrolled method.

You can check out the code and detailed solution with explanations about how to do this for different layout managers here: https://guides.codepath.com/android/Endless-Scrolling-with-AdapterViews-and-RecyclerView

As far as your requirement of a URL that you can use to test pagination, I'd suggest something like TMDB. The full documentation is available here: https://developers.themoviedb.org/3/getting-started

You'll have to sign up for an API key. You could start with a simple endpoint like api.themoviedb.org/3/movie/popular?api_key=<your api key here>&page=<page-number>