FloatingActionButtonLocation class Null safety

An object that defines a position for the FloatingActionButton based on the Scaffold's ScaffoldPrelayoutGeometry.

Flutter provides FloatingActionButtonLocations for the common FloatingActionButton placements in Material Design applications. These locations are available as static members of this class.

Floating Action Button placements

The following diagrams show the available placement locations for the FloatingActionButton.

FloatingActionButtonLocation.centerDocked:

FloatingActionButtonLocation.centerFloat:

FloatingActionButtonLocation.centerTop:

FloatingActionButtonLocation.endDocked:

FloatingActionButtonLocation.endFloat:

FloatingActionButtonLocation.endTop:

FloatingActionButtonLocation.startDocked:

FloatingActionButtonLocation.startFloat:

FloatingActionButtonLocation.startTop:

FloatingActionButtonLocation.miniCenterDocked:

FloatingActionButtonLocation.miniCenterFloat:

FloatingActionButtonLocation.miniCenterTop:

FloatingActionButtonLocation.miniEndDocked:

FloatingActionButtonLocation.miniEndFloat:

FloatingActionButtonLocation.miniEndTop:

FloatingActionButtonLocation.miniStartDocked:

FloatingActionButtonLocation.miniStartFloat:

FloatingActionButtonLocation.miniStartTop:

Constructors

FloatingActionButtonLocation(): Abstract const constructor. This constructor enables subclasses to provide const constructors so that they can be used in const expressions.
const

Properties

hashCode → int: The hash code for this object.
read-onlyinherited
runtimeType → Type: A representation of the runtime type of the object.
read-onlyinherited

Methods

getOffset(ScaffoldPrelayoutGeometry scaffoldGeometry) → Offset: Places the FloatingActionButton based on the Scaffold's layout.
noSuchMethod(Invocation invocation) → dynamic: Invoked when a non-existent method or property is accessed.
inherited
toString() → String: A string representation of this object.
override

Operators

operator ==(Object other) → bool: The equality operator.
inherited

Constants

centerDocked → const FloatingActionButtonLocation: Centered FloatingActionButton, floating over the Scaffold.bottomNavigationBar so that the center of the floating action button lines up with the top of the bottom navigation bar.
_CenterDockedFabLocation()
centerFloat → const FloatingActionButtonLocation: Centered FloatingActionButton, floating at the bottom of the screen.
_CenterFloatFabLocation()
centerTop → const FloatingActionButtonLocation: Centered FloatingActionButton, floating over the transition between the Scaffold.appBar and the Scaffold.body.
_CenterTopFabLocation()
endDocked → const FloatingActionButtonLocation: End-aligned FloatingActionButton, floating over the Scaffold.bottomNavigationBar so that the center of the floating action button lines up with the top of the bottom navigation bar.
_EndDockedFabLocation()
endFloat → const FloatingActionButtonLocation: End-aligned FloatingActionButton, floating at the bottom of the screen.
_EndFloatFabLocation()
endTop → const FloatingActionButtonLocation: End-aligned FloatingActionButton, floating over the transition between the Scaffold.appBar and the Scaffold.body.
_EndTopFabLocation()
miniCenterDocked → const FloatingActionButtonLocation: Centered FloatingActionButton, floating over the Scaffold.bottomNavigationBar so that the center of the floating action button lines up with the top of the bottom navigation bar; intended to be used with FloatingActionButton.mini set to true.
_MiniCenterDockedFabLocation()
miniCenterFloat → const FloatingActionButtonLocation: Centered FloatingActionButton, floating at the bottom of the screen, optimized for mini floating action buttons.
_MiniCenterFloatFabLocation()
miniCenterTop → const FloatingActionButtonLocation: Centered FloatingActionButton, floating over the transition between the Scaffold.appBar and the Scaffold.body, intended to be used with FloatingActionButton.mini set to true.
_MiniCenterTopFabLocation()
miniEndDocked → const FloatingActionButtonLocation: End-aligned FloatingActionButton, floating over the Scaffold.bottomNavigationBar so that the center of the floating action button lines up with the top of the bottom navigation bar, optimized for mini floating action buttons.
_MiniEndDockedFabLocation()
miniEndFloat → const FloatingActionButtonLocation: End-aligned FloatingActionButton, floating at the bottom of the screen, optimized for mini floating action buttons.
_MiniEndFloatFabLocation()
miniEndTop → const FloatingActionButtonLocation: End-aligned FloatingActionButton, floating over the transition between the Scaffold.appBar and the Scaffold.body, optimized for mini floating action buttons.
_MiniEndTopFabLocation()
miniStartDocked → const FloatingActionButtonLocation: Start-aligned FloatingActionButton, floating over the Scaffold.bottomNavigationBar so that the center of the floating action button lines up with the top of the bottom navigation bar, optimized for mini floating action buttons.
_MiniStartDockedFabLocation()
miniStartFloat → const FloatingActionButtonLocation: Start-aligned FloatingActionButton, floating at the bottom of the screen, optimized for mini floating action buttons.
_MiniStartFloatFabLocation()
miniStartTop → const FloatingActionButtonLocation: Start-aligned FloatingActionButton, floating over the transition between the Scaffold.appBar and the Scaffold.body, optimized for mini floating action buttons.
_MiniStartTopFabLocation()
startDocked → const FloatingActionButtonLocation: Start-aligned FloatingActionButton, floating over the Scaffold.bottomNavigationBar so that the center of the floating action button lines up with the top of the bottom navigation bar.
_StartDockedFabLocation()
startFloat → const FloatingActionButtonLocation: Start-aligned FloatingActionButton, floating at the bottom of the screen.
_StartFloatFabLocation()
startTop → const FloatingActionButtonLocation: Start-aligned FloatingActionButton, floating over the transition between the Scaffold.appBar and the Scaffold.body.
_StartTopFabLocation()

Flutter
material
FloatingActionButtonLocation abstract class