backdrop library Null safety

Classes

Backdrop
This class is an InheritedWidget that exposes state of BackdropScaffold BackdropScaffoldState to be accessed from anywhere below the widget tree. [...]
BackdropAppBar
A material app bar that offers functionality for triggering the BackdropScaffold's functionality. It is internally implemented using the AppBar class. [...]
BackdropNavigationBackLayer
Implements the back layer to be used for navigation. [...]
BackdropScaffold
Implements the basic functionality of backdrop. [...]
BackdropScaffoldState
This class is used to represent the internal state of BackdropScaffold. It provides access to the functionality for triggering backdrop. As well it offers ways to retrieve the current state of the BackdropScaffold's front- or back layers (concealed/revealed). [...]
BackdropSubHeader
A wrapper for adding a sub-header to the used backdrop front layer(s). This class can be passed to BackdropScaffold to specify the sub-header that should be shown while the front layer is "inactive" (the back layer is "showing"). [...]
BackdropToggleButton
An animated button that can be used to trigger the backdrop functionality of BackdropScaffold. [...]

Enums

BackdropIconPosition
Deprecated. Not needed anymore when BackdropAppBar is used. [...]