How to make a multi layer horizontal recyclerview or gridlayout?

Question

I am novice to android studio and I want to make a 2 or 3 layer of cardview in one recyclerview or gridlayout/gridview that can scroll horizontally, but I can't find any tutorial about it. Can someone please help me on how can i make it.

Basically the idea is when the user scrolled to the left, both or all the layers of products will slide at the same time.

Zafer Celaloglu · Accepted Answer · 2019-09-07T12:44:39.327

1

First you need to create a new OnScrollListener to be able to detect how much you scrolled your recycler view by using onScrolled callback method.

and then you need to pass dx and dx int values to your another Recyclerview in order to scroll it simultaneously with your dragged Recyclerview

your new onScrollListener should seems like below

RecyclerView.OnScrollListener scrollListener = new RecyclerView.OnScrollListener {

    @Override
        public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
            super.onScrolled(recyclerView, dx, dy);

            scrollAllRecyclerView(recyclerView, dx, dy);
        }

        private void scrollAllRecyclerView(RecyclerView recyclerView, int dx, int dy) {

               scroll(dx, dy)
            }
        }

        private void scroll(int dx, int dy) {
            recyclerView.removeOnScrollListener(this);
            recyclerView.scrollBy(dx, dy);
            recyclerView.addOnScrollListener(this);
        }

anotherRecyclerView.scrollBy(dx, dy);

edited Sep 07 '19 at 12:44

answered Sep 07 '19 at 12:06

Zafer Celaloglu

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Hi sir thank your for your comment! But can you please upload the whole class and the xml file example. I really still don't understand the process of doing the recyclerview. It would be a pleasure to me and I will accept your Answer right away. Thank you so much! – Mr. Baks Sep 07 '19 at 12:11
ok then you should understand the basics of recyclerview & adapter class – Zafer Celaloglu Sep 07 '19 at 12:14
Luckily I understand now the basics of adapters and models and now I am taking the recyclerview. Thank you so much! – Mr. Baks Sep 07 '19 at 12:22
so you should add this new created OnScrollListener into your all recycler views and you should pass these dx, dy values between recylerviews interchangeably – Zafer Celaloglu Sep 07 '19 at 12:27
all you need to do is passing dx and dy values to another recylerview and then scroll each recylerview by using scrollBy method as shown at above – Zafer Celaloglu Sep 07 '19 at 12:28
So i need 2 recyclerviews sir? – Mr. Baks Sep 07 '19 at 12:31
@Mr.Baks yeap exactly – Zafer Celaloglu Sep 07 '19 at 12:32
Also should I add this OnscrollListener in my "MainActivity" not the Adapter? – Mr. Baks Sep 07 '19 at 12:32
So basically the purpose of this method was to connect the 2 recyclerview so when the user scroll any of that recyclerview it will scroll the other one? – Mr. Baks Sep 07 '19 at 12:36
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yes exactly, we're just passing x and y position of dragged recyclerview to be able to scroll another recycler view simultaneously – Zafer Celaloglu Sep 07 '19 at 12:39
And sir lastly, Where should i place the other recyclerview? On top of another? – Mr. Baks Sep 07 '19 at 12:40
@Mr.Baks yes exactly – Zafer Celaloglu Sep 07 '19 at 12:41
1

Thank you so much sir! I will now try it. – Mr. Baks Sep 07 '19 at 12:42

How to make a multi layer horizontal recyclerview or gridlayout?

1 Answers1