How to check whether scrollview / recyclerview is scrolling to up or down android

Question

I am working on android app and using recyclerview and scrollview in some activities. Now I want to show some layout when recyclerview/scrollview scrolls in up direction and hide the layout when it scrolls in down direction. I want a function which can tell that recyclerview/scrollview is scrolling in up or down direction.

Please help if anyone know how to do this for both recyclerview and scrollview.

Thanks a lot in advanced.

you can use OnScrollListener https://developer.android.com/reference/android/support/v7/widget/RecyclerView.OnScrollListener.html — Sid.The.Biker, Aug 03 '16 at 07:14
check out this: [Android ScrollView, check if currently scrolling](http://stackoverflow.com/a/28626671/3472667) — Hoven, Aug 03 '16 at 07:20
Possible duplicate of [RecyclerView scrolled UP/DOWN listener](http://stackoverflow.com/questions/29024058/recyclerview-scrolled-up-down-listener) — Reaz Murshed, Aug 03 '16 at 14:22

score 3 · Answer 1 · answered Dec 04 '17 at 12:25

A sure short answer for this issue

scroll.setOnScrollChangeListener(new View.OnScrollChangeListener() {
        @Override
        public void onScrollChange(View v, int scrollX, int scrollY, int oldScrollX, int oldScrollY) {


                    int x = scrollY - oldScrollY;
                    if (x > 0) {
                        //scroll up
                    } else if (x < 0) {
                       //scroll down
                    } else {

                    }


        }
    });

score 2 · Answer 2 · answered Aug 03 '16 at 07:36

Try this way:

private static int firstVisibleInListview;

firstVisibleInListview = yourLayoutManager.findFirstVisibleItemPosition();

In your scroll listener:

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

 int currentFirstVisible = yourLayoutManager.findFirstVisibleItemPosition();

 if(currentFirstVisible > firstVisibleInListview)
   Log.i("RecyclerView scrolled: ", "scroll up!");
 else
   Log.i("RecyclerView scrolled: ", "scroll down!");  

 firstVisibleInListview = currentFirstVisible;

}

what if currentFirstVisible == firstVisibleInListview and out item height is 200dp. — Tushar Pandey, Sep 14 '17 at 04:13

How to check whether scrollview / recyclerview is scrolling to up or down android

2 Answers2