A TransitionSet is a parent of child transitions (including other TransitionSets). Using TransitionSets enables more complex choreography of transitions, where some sets play TransitionSet.OrderingTogether and others play TransitionSet.OrderingSequential. For example, Android.Transitions.AutoTransition uses a TransitionSet to sequentially play a Fade(Fade.OUT), followed by a Android.Transitions.ChangeBounds, followed by a Fade(Fade.OUT) transition.

     <transitionSet xmlns:android="http://schemas.android.com/apk/res/android"
             android:ordering="sequential">
         <fade/>
         <changeBounds/>
     </transitionSet>
 

A TransitionSet can be described in a resource file by using the tag transitionSet, along with the standard attributes of NoType:android/R$styleable;Href=../../../reference/android/R.styleable.html#TransitionSet and NoType:android/R$styleable;Href=../../../reference/android/R.styleable.html#Transition. Child transitions of the TransitionSet object can be loaded by adding those child tags inside the enclosing transitionSet tag. For example, the following xml describes a TransitionSet that plays a Fade and then a ChangeBounds transition on the affected view targets:

[Android Documentation]