Since u r using LinearLayout
it fill from the Top to bottom so if u have one View inside the Laytout, it will be at the Top of the Application Screen.
in order to use Relative location on the Screen
change the LinearLayout
to RelativeLayout
here is an Example :
instand of using
android:paddingLeft="50dp"
android:paddingTop="100dp"
use
android:layout_marginLeft="50dp"
android:layout_marginTop="100dp"