如何知道listview滚动是否到达底部/顶部

Question

I have an android program and I want to know when the user scrolled to the bottom/ top of a listview. The thing is: I scroll the list by using buttons and the smoothScrollBy method.

Tried using this for bottom, but doesn't work, I still get the last element still "half-cut"

if (yourListView.getLastVisiblePosition() == yourListView.getAdapter().getCount() -1 &&
yourListView.getChildAt(yourListView.getChildCount() - 1).getBottom() <= yourListView.getHeight()) {

    //It is scrolled all the way down here

}

Answer 1

You need to implement OnScrollListener in your Activity then override onScroll method and add the following code :

@Override public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
    if (visibleItemCount + firstVisibleItem >= totalItemCount){
        System.out.println("you reached the bottom");
}