android ListView onOverScroll never be called

Question

can anyone tell me why I can not get onOverScrolled be called in my following code:

   public class KasOverScrollListenableListView extends ListView {

    public interface OverScrollListener{
        void onOverScroll(int scrollx, int scrollY,boolean clampedX, boolean clampedY );
    }
    private OverScrollListener mOverScrollListener= null;
    public KasOverScrollListenableListView(Context context, AttributeSet attrs,
            int defStyle) {
        super(context, attrs, defStyle);
    }

    public KasOverScrollListenableListView(Context context, AttributeSet attrs){
        this(context,attrs,0);
    }

    public KasOverScrollListenableListView(Context context){
        this(context,null,0);
    }

    protected void onOverScroll(int scrollX, int scrollY, boolean clampedX, boolean clampedY){
         Log.i("overScrolling", "overScrolling is " + scrollY);
        // if the version of the system higher than 2.3 then do the following things.
        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD){
//          super.onOverScrolled(scrollX, scrollY, clampedX, clampedY);
            if(null != mOverScrollListener ){
                mOverScrollListener.onOverScroll(scrollX, scrollY, clampedX, clampedY);
            }
        }

    }

    public void setOnOverScrollListener(OverScrollListener listener){
        mOverScrollListener = listener;
    }
}

I can never get the log to be output which means this function never been called, while this listview is actually overscrolled.I will really be grateful to hear your idea.

To use "onOverScroll()" you need API level 9 or above. onOverScrolledBy() method calls this method as a result of overscrolling operation. If you are using Android 2.2 it will not work, tryusing Android 2.3 ie API level 9. — Sagar, Nov 29 '12 at 08:24
Thanks for your reply. I'm using the API higher than 9. I just want to listen to the overScrolling of android,but fails to find a way.it seems that the overwritten function onOverscroll() has never been called,I'am just really confusing about this. — gothion, Dec 03 '12 at 01:16
Try Adding annotation "@Override" above onOverScrolled() method. May work. — Sagar, Dec 05 '12 at 12:11
Hi gothion...have you found a solution to your problem?...I am facing the issue using a samsung 3.1 device. My suspicions are that samsung messed up this feature after the whole apple patent lawsuit ordeal...would really appreciate it if you could let me in on the solution.. — Houston, Mar 05 '13 at 16:20
Hi,Houston,I'm sorry that I havent't found a solution, further I have found that the overscrolling like thing happens in a samsung pad ,with android 2.2 it's os. — gothion, Mar 07 '13 at 12:29

score 1 · Answer 1 · answered Jun 08 '13 at 09:14

1

Not sure if this will help, but the example in the below link calls super.overScrollBy(...). I am able to get to onOverScroll using this code. Hope it helps...

OverScroll ListView Sample code

answered Jun 08 '13 at 09:14

Aviral

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score 0 · Answer 2 · answered May 06 '14 at 06:12

0

Just...if it will needed someone. I shared working sample on Github.

Works fine on 2.3+

answered May 06 '14 at 06:12

Suvitruf - Andrei Apanasik

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score 0 · Answer 3 · answered Aug 01 '15 at 17:15

0

The method is onOverScrolled, not onOverScroll.

You can detect these bugs by putting @Override above the method signature. The compiler will let you know if you really are overriding a method or not.

answered Aug 01 '15 at 17:15

Kacy

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android ListView onOverScroll never be called

3 Answers3