Android ListView add items to top without list view scroll [duplicate]

Answer 1

May be this is what you are looking for:

android:transcriptMode="normal"

"This makes list automatically scroll to the bottom when a data set change notification is received and only if the last item is already visible on screen." - as quoted here

Answer 2

I have found solution here Retaining position in ListView after calling notifyDataSetChanged

Sorry for duplicate question. The final code is this:

    int index = this.commentsListView.getFirstVisiblePosition() + comments.size();
    View v = this.commentsListView.getChildAt(commentsListView.getHeaderViewsCount());
    int top = (v == null) ? 0 : v.getTop();         

    this.commentsListViewAdapter.AddRangeToTop(comments);
    this.commentsListViewAdapter.notifyDataSetChanged();    

    this.commentsListView.setSelectionFromTop(index, top);

Answer 3

Also have a look at ListView's method public void setSelection (int position). After you added new comments, and notified your adapter, you can use it to keep the current item selected.

// Get the current selected index
int previousSelectedIndex = yourListView.getSelectedItemPosition();

// Change your adapter
this.commentsListViewAdapter.AddRangeToTop(comments);
this.commentsListViewAdapter.notifyDataSetChanged();


// Determine how many elements you just inserted
int numberOfInsertedItems = comments.size();

// Update the selected position
yourListView.setSelection(previousSelectedIndex + numberOfInsertedItems);

NOTE: Code is untested. Good luck