You're right. Even better! :-) If you back just a simple java.util.List, then the ArrayAdapter will take care of most, if not all, of your requirements for a list-view.
On Oct 21, 11:58 pm, Miguel Paraz <[email protected]> wrote: > Hi Marc and "Streets of Boston", > > Thanks for the tips! > > As it turns out, subclassing is not necessary. > > The ArrayAdapter also works with java.util.List. I only found out > while reading the source code (from the AOSP tree) to see how I can > make a fork of it. > > Then, insert(object, index) will insert into the backing list you > used, as well as redraw the UI. > > On Oct 21, 10:52 pm, Marc Lester Tan <[email protected]> wrote: > > > > > Yeah, correct, just call notifydatasetchanged on "you mean custom and not > > customer ;)" adapter, forgot that one. > > > On Wed, Oct 21, 2009 at 10:02 PM, Streets Of Boston <[email protected] > > > > wrote: > > > > No need to call 'invalidate()' on your list-view. > > > Call 'notifyDatasetChanged()' on your customer adapter instead, > > > whenever you add or delete elements in your ArrayList or change the > > > contents of existing elements in your ArrayList. > > > > On Oct 21, 7:53 am, Marc Lester Tan <[email protected]> wrote: > > > > Hi Migs, > > > > > You can try creating custom adapter (subclassing BaseAdapter) backed by > > > an > > > > ArrayList. So lets say a new data comes in, get the currently selected > > > > index, push your new data to arraylist, call invalidate on your listview > > > > then call setSelection(position) on listview. > > > > > hth, > > > > Marc > > > > > On Wed, Oct 21, 2009 at 7:34 PM, Miguel Paraz <[email protected]> wrote: > > > > > > Hi, > > > > > I'd like to build a ListView with streaming content. New items are > > > > > added to the top and old ones are forgotten > > > > > > If I understand correctly, the ListView was not built for this, right? > > > > > The ListAdapter was meant to provide a fixed set of data. > > > > > > I tried to setAdapter() when new data comes in, but this makes the > > > > > ListView forget the current selection. > > > > > > Is it feasible to subclass or modify ListView behavior so that the > > > > > selection stays the same but gets pushed down? > > > > > > Thanks!- Hide quoted text - > > > > > - Show quoted text -- Hide quoted text - > > - Show quoted text - --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
