How to scroll gridview to position?

Question

I have 30 images on grid view (3 images per row). If user select 20th image and go to next screen and come back then I want to focus to that position. I used following line

Answer 1

solution that worked for me was combine code from Monali and Sreedev (thank you Monali and Sreedev):

private int gridviewVerticalPositionWhenThumbnailTapped;

...

// save vertical position of gridview screen, will use to re-find this location if user follows a usre and gridview gets redrawn
gridviewVerticalPositionWhenThumbnailTapped = gridview.getFirstVisiblePosition();

later in app...

// scroll gridview to vertical position pre user tap follow                
gridview.setSelection(gridviewVerticalPositionWhenThumbnailTapped);