Specifies the positions and attributes of all of the views at one point in a
motion sequence. Typically, a
element points to two
<ConstraintSet> elements, one defining the beginning of
the motion sequence and one defining the end.
<ConstraintSet id="@id/name"> ... </ConstraintSet>
One or more
- Unique identifier for this constraint set. The
<Transition>needs this ID to identify the start and end points of the motion sequence.