How to fill data in RecyclerView in android?

Question

My app is using RecyclerView to load the data from Backend Endpoints API. After connecting the API I am getting some x amount of data. I am successfully able to load the data in StaggeredGridView in RecylerView.

Now, user scrolldown to bottom and reach at Last Position. How can I make able to another request to fetch next x amount of data and so on? (Like Gmail App does. Gmail app shows a spinner and load next span of data)

I am new in Android and How can I achieve it?

It depends on `Backend Endpoints API` supporting lazy loading :) — ρяσѕρєя K, Oct 26 '15 at 17:30
Like @ρяσѕρєяK said, if the API supports paging, just make a request for the next page, add the contents of the request to the collection that the adapter points to, then `notifyDataSetChanged()` on the adapter. — nukeforum, Oct 26 '15 at 17:32
How can I check it? I can only expose the API. In my case I have something like this : `abc.com?limit=100` where 100 is x — Amit Pal, Oct 26 '15 at 17:34
@nukeforum Can you give me an example or link where I can look at it? — Amit Pal, Oct 26 '15 at 17:44
May you find this link helpful in getting the desired result https://gist.github.com/ssinss/e06f12ef66c51252563e — Itapu Vinay, Oct 26 '15 at 17:48
@AmitPal I don't know what API you're using. If you look at the documentation for the API, I'm sure they will list paging as an option if it is available. — nukeforum, Oct 26 '15 at 17:54
@AmitPal Cool, check out Natan's answer for a technique for making this request at the right time. — nukeforum, Oct 26 '15 at 18:25

score 1 · Accepted Answer · edited May 23 '17 at 10:32

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It is quite simple, just check the onScrolled event. You can check this answer for more details:

https://stackoverflow.com/a/26643292/4244598

You can also start loading before the user reacher the end of the list if you wish. I hope this helps you.

edited May 23 '17 at 10:32

Community

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answered Oct 26 '15 at 18:07

Natan

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I looked at it but didn't able to understand where the accepted answer or Kushal answer is calling backend API after the user reached to last position of recyclerView? – Amit Pal Oct 26 '15 at 18:49
You can call the backend right after the loading = false; – Natan Oct 26 '15 at 20:15
Actually I did that but can you give me an hint how to append this data to the previous one in RecyclerView? – Amit Pal Oct 27 '15 at 04:00
Just append the data to the list you used to create the recyclerView's adapter and call adapter.notifyDataSetChanged() – Natan Oct 27 '15 at 16:18

How to fill data in RecyclerView in android?

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