how to know from adapter if the item of ListView is visible or not?

Question

I have an adapter that connected to ListView, e.g.

mJournalAdapter = new JournalAdapter();
journalEntryList.setAdapter(mJournalAdapter);

and I want to know inside of my JournalAdapter if some view (item of ListView) is visible or not, is it possible?

score 24 · Accepted Answer · edited Sep 04 '17 at 15:13

24

If you know the postion of that item then you can use

int last = listView1.getLastVisiblePosition();  

int first = listView1.getFirstVisiblePosition();

edited Sep 04 '17 at 15:13

Twometer

answered Jun 22 '12 at 08:17

Dheeresh Singh

score 6 · Answer 2 · answered Feb 23 '14 at 21:13

6

You can get callback , overriding OnDetachedFromWindow(); method in View

answered Feb 23 '14 at 21:13

dooplaye

That's not how you are supposed to do in the `ListView`. You're reinventing the wheel. The other 2 answers are legit. – Sufian May 15 '14 at 05:29
It's not reinventing the wheel. In fact, it is very a nice way to handle view recycling de-coupled from the listview/recyclerview/adapter – Vedant Agarwala Mar 27 '16 at 12:23

score 2 · Answer 3 · answered Jun 22 '12 at 08:18

2

You can use getFirstVisiblePosition() will give you the first visible Item in the ListView, so you can use that in your case.

answered Jun 22 '12 at 08:18

Lalit Poptani

3 Answers3