NestedScrollView's fullScroll(View.FOCUS_UP) not working properly

Question

I have a NestedScrollView populated with a vertical LinearLayout, which itself has a bunch of children of various view types: multiple TextViews, two static GridViews, and e

Answer 1

try this

add android:descendantFocusability="blocksDescendants" to the LinearLayout inside NestedScrollView and this also

to scroll to top of NestedScrollView use this

NestedScrollView.scrollTo(0, 0);

Edit

Use fling() and smoothScrollTo togather

nestedScrollView.post(new Runnable() {
   @Override
   public void run() {
      nestedScrollView.fling(0);
      nestedScrollView.smoothScrollTo(0, 0);
   }
});