Thanks for the reply. The button events are -- nine times out of ten -- tied to the correct data, but if you rapidly push a button you can throw an event that will be tied to the wrong data. I thought that this didn't make sense since everything should be occurring on the UI thread (right?). But it appears that the event can sneak in before the screen is actually refreshed.
On Feb 8, 11:24 am, Kostya Vasilyev <kmans...@gmail.com> wrote: > If the button is linked to the wrong item, then you have a bug in your > adapter's getView, where you're not properly associating the button with > the item for the case where convertView != null. > > As for performance, I find it useful, when refreshing a ListView item in > response to some event, to go through the visible list items, find the > ones that are affected, and push new values into them right then and > there, rather than calling notifyDataSetChanged / Invalidated. > > -- Kostya > > 08.02.2011 19:47, ivan пишет: > > > > > Anyone? > > > On Feb 7, 4:33 pm, ivan<istas...@gmail.com> wrote: > >> I'm using a ResourceCursorAdapter to display a list of downloads from > >> a ContentProvider that track's my application's downloads -- modeled > >> after Android's DownloadProvider. > > >> The problem is that when a download is actively running it frequently > >> calls bind view--every few seconds--to update a download progress bar, > >> with a view object that is NOT currently associated with a given > >> cursor position. Thus, bind view is constantly recycling and binding > >> view objects to new item/cursor positions. > > >> This is especially a problem if the user attempts to push a button on > >> one of the items while it's being bound to a different view object and > >> cursor position, which results in an event being fired for the wrong > >> data. > > >> Does anyone have advice on how to minimize unnecessary view recycling? > > >> It appears to only occur for the bottom and top list items (of the > >> three on the screen), while the middle item remains tied to a single > >> cursor and view object. > > >> Thanks, > >> -Ivan > > -- > Kostya Vasilyev -- WiFi Manager + pretty widget > --http://kmansoft.wordpress.com -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
