Fill_parent Is Not Filling Entire Screen In LinearLayout

I tried to search for this answer and the closest I got to an answer was to add android:resizable='true', which is deprecated. I apologize if this question has been answered but I

Solution 1:

Add below code in menifest after application tag

<supports-screens android:resizeable="true"
                      android:smallScreens="true" 
                      android:normalScreens="true" 
                      android:largeScreens="true"

                      android:anyDensity="true" />