My app contains a view which consists of a ViewPager consisting of a handful of fragments. When you click on an item in one of these fragments, the expected behavior is for
On the activity supportPostponeEnterTransition();
supportPostponeEnterTransition();
And when your fragments are loaded (try to sync them, maybe with EventBus or whatever)
startPostponedEnterTransition();
Refer to this sample
http://www.androiddesignpatterns.com/2015/03/activity-postponed-shared-element-transitions-part3b.html