How to detect overscroll in Android ListView?

Question

I'd like to show/hide a view when the user over scroll the listview.

How can I detect the over-scroll? Is there any listener? I've tried OnScrollListener but it only notifies about onScrollStateChanged and onScroll

What have you done uptill now ? Please post some code atleast. — GrIsHu, Oct 12 '13 at 12:49

score 19 · Accepted Answer · answered Oct 12 '13 at 12:55

19

You can override the method onOverScrolled, as it respond to the results of an over-scroll operation.

answered Oct 12 '13 at 12:55

Sean

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Indeed. you'll have to subclass it and add the new class instead of the regular ListView – Sean Oct 12 '13 at 13:10
I've been looking for this so long and it turns out to be so simple, thanks! – Leo Mar 10 '16 at 22:16

ucMedia · Answer 2 · 2022-06-30T13:08:33.883

Just a little more complete answer :

@Override
protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) {
    super.onOverScrolled(scrollX, scrollY, clampedX, clampedY);

    View view = (View) getChildAt(getChildCount()-1);
    int diff = (view.getBottom()-(getHeight()+getScrollY()));

    if(diff==0) {
           //overscroll on bottom
       } else {
           //overscroll on top
       }    
}

score 1 · Answer 3 · answered Mar 27 '19 at 12:29

scrollY = non-Zero and clampedY = true --> OverScroll state occure While Scrolling bottom to top

scrollY = Zero and clampedY = true --> OverScroll state occure While Scrolling top to bottom

so

@Override
protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) {
    super.onOverScrolled(scrollX, scrollY, clampedX, clampedY);

    if(clampedY){
        if(scrollY==0){
            //over Scroll at top
        }else {
            //over Scroll at Bottom
        }
    }
}

How to detect overscroll in Android ListView?

3 Answers3

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