Disable listview overscroll on Samsung Galaxy Tab 2.3.3 android

Question

I need to totally disable overscroll in my listviews so I can implement my own overscroll functionality.

Seems to be simple enough when looking at the core listview classes, just by setting the overscroll mode to OVERSCROLL_NEVER. This fine work on my Samsung Galaxy s2. But doesn't work For Galaxy Tab 2.3.3.

Has anyone had much experience with samsung ListView customizations that can help me?

Answer 1

It worked for me on Samsung Galaxy Tab (with Android 2.2):

try {

    // list you want to disable overscroll
    // replace 'R.id.services' with your list id
    ListView listView = ((ListView)findViewById(R.id.services)); 

    // find the method
    Method setEnableExcessScroll =
            listView.getClass().getMethod("setEnableExcessScroll", Boolean.TYPE);

    // call the method with parameter set to false 
    setEnableExcessScroll.invoke(listView, Boolean.valueOf(false)); 

}
catch (SecurityException e) {}
catch (NoSuchMethodException e) {}
catch (IllegalArgumentException e) {}
catch (IllegalAccessException e) {}
catch (InvocationTargetException e) {}

Answer 2

You have to set the height of the listview to a fix value. If your content is dynamically there is a nice function to measure the actual listsize after resetting the adapter:

    public static void setListViewHeightBasedOnChildren(ListView listView) {
    ListAdapter listAdapter = listView.getAdapter();
    if (listAdapter == null) {
        // pre-condition
        return;
    }

    int totalHeight = 0;
    int desiredWidth = MeasureSpec.makeMeasureSpec(listView.getWidth(), MeasureSpec.AT_MOST);
    for (int i = 0; i < listAdapter.getCount(); i++) {
        View listItem = listAdapter.getView(i, null, listView);
        listItem.measure(desiredWidth, MeasureSpec.UNSPECIFIED);
        totalHeight += listItem.getMeasuredHeight();
    }

    ViewGroup.LayoutParams params = listView.getLayoutParams();
    params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1));
    listView.setLayoutParams(params);
    listView.requestLayout();
}

you have to call this static method with your listview as paramter after setting up your adapter. You can now add an scrollview (inside is your listview and other views). I would say this behavior in 2.3.3 an earlier is a small bug... there is no easy way to include the listview inside a scrollview except the way I described. For that reason they introduced the OVERSCROLL_NEVER mode :)

Code is from DougW!