How can I change Image on Gridview Runtime?

Question

I have one GridView with 3 Column and 3 Rows I want to change Image when User Click any two Images.

for Example I Click First Row 1 and Column 3 Image and Secondly I

Answer 1

Also do the following for updating the grid view images to complete the swap operation:

im.notifyDataSetChanged();
gridView.setAdapter(im);
gridView.invalidateViews()