Sibling transitions are between screens that share a parent (album - photos, profile - sections, a task flow - tasks).
- Siblings: same or are logically related to each other.
- Siblings always move together. e.g. the example below: top navigation (parent) - content below (siblings)

Arizona State University

University of Michigan - Ann Arbor

"Peer transitions occur between screens at the same level of hierarchy." Two kinds of peer transition are sibling transitions and top-level transitions.

Peer Transitions

Material Design Documentation

Sibling Transitions

"At the top level of an app, destinations are often grouped into major tasks (and the tasks may not relate to one another)." Therefore don't use slide in/out for these screens since they may mislead users to think that they are hierarchical instead use fade-through.


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