OK, Regarding item #1 setSelectedPosition(0) will do the trick. Regrading #2 i'm still not sure. If i must have the onScroll methods to be called uppon data set change do i have to call notifyDatasetInvalidated ? why datasetChanged doesn't do the trick, there is scrolling involved basically if the amount of items is changed in the adapter...
On Nov 21, 6:12 pm, poohtbear <[email protected]> wrote: > I have a list view that can display items based on internal state (it > has items, and 'viewed' items). i need to be able to toggle between by > two states, i do that using a simple button that change the adapter's > state and the adapter then called notifyDatasetChanged(). > My data DOES gets updated, however i was facing two problems: > 1. if in the previous mode the list was partially scrolled, it stayed > in that state after i changed the data set (if i was half the way down > i'll be half way down in the new data set as well, this is not the > behavior i want, but i cols not find a way to scroll the list manually > to position 0. any ideas ? > > 2. In my list View each item has an image that is fetched from the > net, as so it's being brought using my networking manager and i send > the image request ONLY if i'm in this screen for the first time OR if > scroll state is idlle, i didn't want to start loading images from the > getView method since if i fling the screen it may load a lot of > unnecessary images. However when calling notifyDatasetChanged() the > scroll listener methods are not called. i solved this one by using > notifyDatasetInvalidated even though my data is not empty, is there a > better way to solve this issue ? > > 10x! -- 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
