ZLayout
ZLayout is a layout paradigm that adds an explicit depth axis to two-dimensional user interfaces, enabling developers to reason about stacking and occlusion in three dimensions. While traditional layouts arrange elements in a plane, ZLayout models a z-dimension that determines which components appear in front of others when they overlap. It is applicable to web, desktop, and mobile UI toolkits and is commonly used to manage layered components such as modal dialogs, drawers, popovers, and card stacks.
Core concepts in ZLayout include depth values, stacking contexts, and constraints that relate depth to position
In practice, a ZLayout system assigns a z-value to each element, resolves a final draw order from
Origins for the term ZLayout appear in UI design discussions and framework documentation as a way to