BottomAppBar class
A container that is typically used with Scaffold.bottomNavigationBar, and can have a notch along the top that makes room for an overlapping FloatingActionButton.
Typically used with a Scaffold and a FloatingActionButton.
Scaffold(
bottomNavigationBar: BottomAppBar(
color: Colors.white,
child: bottomAppBarContents,
),
floatingActionButton: FloatingActionButton(onPressed: null),
)
See also:
ComputeNotch
a function used for creating a notch in a shape.ScaffoldGeometry.floatingActionBarComputeNotch
theComputeNotch
used to make a notch for the FloatingActionButton- FloatingActionButton which the BottomAppBar makes a notch for.
- AppBar for a toolbar that is shown at the top of the screen.
- Inheritance
- Object
- Diagnosticable
- DiagnosticableTree
- Widget
- StatefulWidget
- BottomAppBar
Constructors
- BottomAppBar({Key key, Color color, double elevation: 8.0, NotchedShape shape, Clip clipBehavior: Clip.none, double notchMargin: 4.0, Widget child })
-
Creates a bottom application bar. [...]
const
Properties
- child → Widget
-
The widget below this widget in the tree. [...]
final
- clipBehavior → Clip
-
The content will be clipped (or not) according to this option. [...]
final
- color → Color
-
The bottom app bar's background color. [...]
final
- elevation → double
-
The z-coordinate at which to place this bottom app bar. This controls the
size of the shadow below the bottom app bar. [...]
final
- notchMargin → double
-
The margin between the FloatingActionButton and the BottomAppBar's
notch. [...]
final
- shape → NotchedShape
-
The notch that is made for the floating action button. [...]
final
- hashCode → int
-
The hash code for this object. [...]
read-only, inherited
- key → Key
-
Controls how one widget replaces another widget in the tree. [...]
final, inherited
- runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited
Methods
-
createState(
) → State< StatefulWidget> -
Creates the mutable state for this widget at a given location in the tree. [...]
override
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree. [...]
inherited
-
debugDescribeChildren(
) → List< DiagnosticsNode> -
Returns a list of DiagnosticsNode objects describing this node's
children. [...]
@protected, inherited
-
debugFillProperties(
DiagnosticPropertiesBuilder properties) → void -
Add additional properties associated with the node. [...]
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed. [...]
inherited
-
toDiagnosticsNode(
{String name, DiagnosticsTreeStyle style }) → DiagnosticsNode -
Returns a debug representation of the object that is used by debugging
tools and by toStringDeep. [...]
inherited
-
toString(
{DiagnosticLevel minLevel: DiagnosticLevel.debug }) → String -
Returns a string representation of this object.
inherited
-
toStringDeep(
{String prefixLineOne: '', String prefixOtherLines, DiagnosticLevel minLevel: DiagnosticLevel.debug }) → String -
Returns a string representation of this node and its descendants. [...]
inherited
-
toStringShallow(
{String joiner: ', ', DiagnosticLevel minLevel: DiagnosticLevel.debug }) → String -
Returns a one-line detailed description of the object. [...]
inherited
-
toStringShort(
) → String -
A short, textual description of this widget.
inherited
Operators
-
operator ==(
dynamic other) → bool -
The equality operator. [...]
inherited