[android-developers] Re: How to read not visible elements of listview

[narendrasingh.bi...@gmail.com]

Mark, Can u plz show me some sample code how u achieved it.

On Jun 4, 6:12 pm, "Mark Murphy" <mmur...@commonsware.com> wrote:
> > I have a list view which contains some 20 odd items along with a check
> > box. Now when iam trying to delete an item by checking its checkbox,
> > iam getting NullPointerException at below written code:
>
> > CheckBox cbox= (CheckBox) view.getChildAt(j).findViewById
> > (R.id.alarmCheck);
>
> > here  view.getChildAt(j) comes null.
> > Now if I have six elements in this ViewList, which are visible on the
> > emulator, then the same code just works fine.
> > Problem arises when the list is long and it starts scrolling and some
> > element are not visible.
> > I am working on this problem for some days, any help will be highly
> > apperciated.
>
> Rather than use your own checkboxes, I would use the built-in checklist in
> ListView, as it will simplify what you are trying to accomplish.
>
> --
> Mark Murphy (a Commons Guy)http://commonsware.com
> _The Busy Coder's Guide to Android Development_ Version 2.0 Available!
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