Finally after writing my response I think about better search on google :)
And the solution is logical after I put better words on the problem :
listView.post(new Runnable() {
@Override
public void run() {
listView.requestChildRectangleOnScreen(view,
new Rect(0, 0, view.getRight(),
view.getHeight()), false);
}
});
This will make the scroll happens after the redraw so works with correct
measures.
Le mercredi 11 juillet 2012 14:42:45 UTC+2, Tolriq a écrit :
>
> Hello,
>
> I'm currently facing a problem and the solution I use does not satisfy me.
> I'm pretty sure there's a correct way to handle this case so I ask here :)
>
> My problem is simple I have a listview with items that have a gone part
> that I show on the last clicked item.
> This part works well, I also want the clicked item to be fully visible and
> here's comes trouble.
>
> With non expanding item it's easy to do with requestChildRectangleOnScreen
> but in my case I can't find a way for the list to be aware of the new size
> of the item so it will only scroll the item to show the expanded part.
> The solution I use is if the requestChildRectangleOnScreen was in effect
> or if item is last or before last item then scroll by the size of the
> expanded item (that i get via measure).
>
> This works but not perfect since sometimes I scroll the list (when i
> before last item) when it would not have been needed :(
>
> The code used :
>
> public void onItemClick(AdapterView<?> arg0, View arg1, int i,
>> long l) {
>> // TODO Auto-generated method stub
>> if (curView != null) {
>> try {
>> curView.setVisibility(View.GONE);
>> } catch (Exception e) {
>> }
>> }
>>
>> ListView listView = (ListView)
>> findViewById(R.id.mediaslist_list);
>>
>> curView = ((RelativeLayout)
>> arg1.getTag(R.id.movieslist_item_details));
>> curView.setVisibility(View.VISIBLE);
>> int widthMeasureSpec = MeasureSpec.makeMeasureSpec(0,
>> MeasureSpec.UNSPECIFIED);
>> int heightMeasureSpec = MeasureSpec.makeMeasureSpec(0,
>> MeasureSpec.UNSPECIFIED);
>> curView.measure(widthMeasureSpec, heightMeasureSpec);
>>
>> if (listView.requestChildRectangleOnScreen(arg1, new
>> Rect(0, 0, arg1.getRight(),
>> arg1.getHeight()), false)
>> || listView.getLastVisiblePosition() <= (i + 1)) {
>> listView.smoothScrollBy(curView.getMeasuredHeight(),
>> 150);
>> }
>> }
>>
>
> If someone have the correct way to handle this case thanks for answering :)
>
> Regards,
> Tolriq.
>
>
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