ListView in fragment cannot keep scroll position

Question

How to keep scroll position of ListView when ListView is inside ListFragment ?

Answer 1

Finally, I solved the problem, so I decided to post the solution to others:

In my subclass of ListFragment, I declared two int variables to hold the scroll position

 public static class MyListFragment extends ListFragment { ...................... ...................... private int index = -1; private int top = 0; ...................... 

Then override onPause () and onResume () to save and restore the scroll positions of the ListView as follows:

 @Override public void onResume() { super.onResume(); ...................... ...................... setListAdapter(mAdapter); if(index!=-1){ this.getListView().setSelectionFromTop(index, top); } ...................... ...................... } @Override public void onPause() { super.onPause(); try{ index = this.getListView().getFirstVisiblePosition(); View v = this.getListView().getChildAt(0); top = (v == null) ? 0 : v.getTop(); } catch(Throwable t){ t.printStackTrace(); } ...................... ...................... } 

What is it! Hope this helps someone. :)

Answer 2

I think your solution is great for touch mode, but that wasn't enough for me. I needed to select a selector on the same selected element, not the first view:

 @Override public void onStop() { super.onStop(); ListView listView = this.getListView(); lastPosition = listView.getSelectedItemPosition(); int lastPositionInGroup = lastPosition - listView.getFirstVisiblePosition(); lastTop = listView.getChildAt( lastPositionInGroup ).getTop(); } @Override public void onLoadFinished(Loader<Cursor> loader, Cursor data) { /* cursor adapter stuff here */ if (lastPosition != AdapterView.INVALID_POSITION) { listView.setSelectionFromTop( lastPosition, lastTop != AdapterView.INVALID_POSITION ? lastTop : 0 ); } } 

Answer 3

try

 listView.getFirstVisiblePosition() 

Answer 4

  @Override public void onResume() { super.onResume(); if(CommonVariables.firstsel==6) { swipelistview.setAdapter(adapter_ct); swipelistview.setSelection(CommonVariables.index); } } @Override public void onPause() { super.onPause(); try { CommonVariables.firstsel=6; CommonVariables.index = Fragmentct.swipelistview.getFirstVisiblePosition()+1; Toast.makeText(getActivity(),"onPause"+CommonVariables.index,1500).show(); } catch(Throwable t){ t.printStackTrace(); } }