How it works...

This is a very straightforward exercise but it demonstrates several of the RelativeLayout options: layout_centerVertical, layout_centerHorizontal, layout_below, layout_alignParentBottom, and so on.

The most commonly used RelativeLayout layout attributes include the following:

• layout_below: This View should be below the View specified.
• layout_above: This View should be above the View specified.
• layout_alignParentTop: Align this View to the top edge of the parent.
• layout_alignParentBottom: Align this View to the bottom edge of the parent.
• layout_alignParentLeft: Align this View to the left edge of the parent.
• layout_alignParentRight: Align this View to the right edge of the parent.
• layout_centerVertical: Center this View vertically within the parent.
• layout_centerHorizontal: Center this View horizontally within the parent.
• layout_center: Center this View both horizontally and vertically within the parent.