I have a ListView, where i changed appearence of row, but listview have size of one row, instead of fullscreen.
list_item.xml:
In list_item.xml's parent LinearLayout, you are using android:layout_height="fill_parent" Obviously it is going to expand vertically.
OR:
use monitor tool, go to hierarchy viewer, inspect the running Layout in detail. Find the View with problem, check its attributes/properties are correct, move to its parent View and check it, until you find the issue.