Makes its child draggable starting from long press.

MaterialApp

A convenience widget that wraps a number of widgets that are commonly required for applications implementing Material Design.

MediaQuery

Establishes a subtree in which media queries resolve to the given data.

MergeSemantics

A widget that merges the semantics of its descendants.

Navigator

A widget that manages a set of child widgets with a stack discipline. Many apps have a navigator near the top of their widget hierarchy...

NestedScrollView

A scrolling view inside of which can be nested other scrolling views, with their scroll positions being intrinsically linked.

NotificationListener

A widget that listens for Notifications bubbling up the tree.

Offstage

A widget that lays the child out as if it was in the tree, but without painting anything, without making the child available for hit...