> This works fine but the performance is not that great while scrolling > since I'm inflating quite a few Views due to convertView mismatches,
If this happens, you need to properly report the view types from your adapter. See getItemViewType() for instance. > The problem is, sometimes the 9-patch is not correctly wrapped around > the content of the list item when using this approach. While scrolling > it usually looks correct but when the scrolling stops, or sometimes > when I just tap anywhere on the list, the background 9-patch of some > large items starts flickering and is either cropped or resized to its > original PNG size rather than stretched to wrap the content. You cannot use the SAME drawable on several views. You must have one drawable per view. Note that having several drawables loaded from the same resource is not bad as they share a lot of data. > First of all, I suspect this is a bug? Any ideas why this happens? > Could it be that the View is not always measured to reflect the > changed content when the 9-patch is applied? I have tried adding an > extra call to View.invalidate() but it doesn't solve the problem. When you do: view1.setBackgroundDrawable(d), the drawable is linked to view1 and gets the size of view1. Then when you do view2.setBackgroundDrawable(d), the drawable is linked to view2 and gets the size of view2. From now on, the drawable will invalidate view2 and not view1. > Second, does this approach sound reasonable at all, or how should I go > about to optimize this scenario? Just use the view types information that the adapter can provide and let ListView do all of the work :) -- Romain Guy Android framework engineer [email protected] Note: please don't send private questions to me, as I don't have time to provide private support. All such questions should be posted on public forums, where I and others can see and answer them --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
