Android sort ListView

Question

I have an ListActivity which use data from DB..

setListAdapter(new CursorAdapter(myCursor));

This view have a column with a numbers. What i need is to sort them in descending whey when i click on a button. Its not a problem to write a new select with a new sort type..But how to refresh ListActivity ? Should I reuse setListAdapter ?

setting new sorted adapter via setListAdapter will refresh your view — Mojo Risin
– Mojo Risin, Commented Mar 21, 2011 at 14:25

Robby Pond · Accepted Answer · 2011-03-21 14:25:41Z

1

Since you are using a CursorAdapter it would be best to have the db sort the list. So just create a new Cursor and call setListAdapter again.

answered Mar 21, 2011 at 14:25

Robby Pond

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tbruyelle · Accepted Answer · 2011-03-21 14:25:01Z

1

Yes you can reuse the setListAdapter() method, after recreating a new CursorAdapter with the new reordered Cursor.

answered Mar 21, 2011 at 14:25

tbruyelle

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2 Comments

ernazm Over a year ago

Sure he can, but should he? Mb there's more efficient way to reorder that list?

tbruyelle Over a year ago

As the cursor is rebuilt, it's the simpliest way.

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