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

Answer 1

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

int last = listView1.getLastVisiblePosition();  

int first = listView1.getFirstVisiblePosition();