Hi, I'm experiencing some strange behaviors when using ListActivity that it's listview is bound to a custom BaseAdapter. The list I'm using is getting a lot of updates as the items it contains reflect real time data that is updating up to few times per second. The BaseAdapter is written with the viewHolder pattern. The list also has onClick listener. when clicking on one of the items, it's id is saved and a new activity is opened with the saved ID details.
The problem occurs when a call is made to notifyDatasetChanged. as i mentioned this kind of call could happen few times a second, for reflecting the real-time data. When notifyDatasetChanged is called, there is a moment that if I click an item on the list, the onClick event executed could be on a wrong item. After some check I've understood that the wrong item is always the "mirror item" in the list. As if for a moment there, the list items position is reverted. e.g I have a list with 3 items. notifyDatasetChanges is being called. sometimes, click on the first item could get me to the click listener of the third item, and vice versa! click of the second item is always getting the right result. if I have a list of 5 items, items 1-5 sometimes get confused, same for items 2-4, and item 3 is always fine. the confused item are never showed on the view, but the fired click events shows something's happening on the background. I had this problem also on different list that working in the same way, but also contains a button on each list item. When using the button I can actually see the focus jump around between the the buttons, when clicking on a button while notifyDatasetChanged is running. in the example from before: with 3 items, clicking on the button of the first row, i can sometimes see the button of the last row being clicked! This is really bad because it causes opening of activities with the wrong data... I've tried making less calls to notifyDatasetChanged, something like once a second, the problem is happening less, but it's still there, i guess that even if it would called once every 5 seconds there is a small chance the wrong item will get the click event... Is this a known issue? is there something I do that sounds off? I could upload some code, just wanted to check if it's something someone known first... appreciate any thought... -- 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
