Programmatically scroll to the top of a NestedScrollView

Question

Is there a way to programmatically scroll to the top of a NestedScrollView by also triggering the scroll events for the parent? smoothScrollTo(x, y)

Answer 1

NestedScrollView.scrollTo(0, 0);

Answer 2

You can use this for smooth scroll.

nestedScrollView.fullScroll(View.FOCUS_UP);
nestedScrollView.smoothScrollTo(0,0);

OR for normal scroll

nestedScrollView.fullScroll(View.FOCUS_UP);
nestedScrollView.scrollTo(0,0);

Answer 3

Use the View.scollTo(int x, int y) instead to scroll to the top.

findViewById({your NestedScrollView resource id}).scrollTo(0, 0);

Answer 4

Another way to smooth scroll NestedScrollView to all the way up or down is using fullScroll(direct) function

nestedScrollView.fullScroll(View.FOCUS_DOWN);
nestedScrollView.fullScroll(View.FOCUS_UP);

Answer 5

I tried all the above responses, nothin seemed to work but I only needed a postDelayed.

    scrollview.postDelayed(new Runnable() {
        @Override
        public void run() {
            listener.setAppBarExpanded(false, true); //appbar.setExpanded(expanded, animated);
            scrollview.fullScroll(View.FOCUS_DOWN);
        }
    }, 400);

Answer 6

I also faced similar kind scenario. In my case when I scroll down to end, FAB button should be appears and when user tap on that FAB button should go to the top of the page. For that I added @SilentKnight answer NestedScrollView.scrollTo(0, 0); For go to the top but which is not enough for smooth animation for scroll up.
For smooth animation I have used @Sharj answer which is NestedScrollView.fullScroll(View.FOCUS_UP); But then my AppBar is not visible there fore I have to expanded the AppBar as following appBarLayout1.setExpanded(true). So using these three I can able smoothly go to top of the page.

nestedScrollView.fullScroll(View.FOCUS_UP);
nestedScrollView.scrollTo(0,0);
appBarLayout1.setExpanded(true);