A: 

Your ScrollViews are on the same table row. Try changing the layout_weight to 0.5 instead. Then both of them should get half of the row.

Juhani
I changed layout_weight to 0.5 but nothing's changed in interface.
Artur
Another thing is that I added focusable TextViews and set OnClickListener to them that adds one letter to EditText. When I run program and click on list positions width of EditText and width of left scrollView changes equally
Artur
+1  A: 

Problem solved, I replaced second TableRow with LinearLayout and everything started to work correctly. I don't know why but both TableRows were somehow connected and changing width of second one changed width of first one

Artur