Luke Allison Luke Allison - 3 months ago 48
Android Question

Nested scrollview automatically scrolls to bottom

I have a GridView within a NestedScrollView. I have used the code below to resize the GridView whenever the content of the GridView is changed. This works fine, however the NestedScrollView scrolls to the very bottom when I swipe from fragment 3 of the app back to fragment 2 (where the NestedScrollView resides). This doesn't happen when swiping from fragment 1 to fragment 2, oddly. It also doesn't happen directly after resizing the GridView.

How can I repress the NestedScrollView from scrolling to the bottom?

private static void resizeGridView(GridView gridView, int items, int columns) {
ViewGroup.LayoutParams params = gridView.getLayoutParams();
params.height = singleGridHeight * items;
gridView.setLayoutParams(params);
gridView.requestLayout();
}


The following system methods are called when swiping between fragments:
enter image description here

Answer

If I add nestedScrollView.scrollTo(0, 0); to the end of the onLayoutChanged() method of the GridView the issue is resolved. However, it would make more sense to prevent the nestedScrollView from automatically scrolling in the first place.

Ideas?