A lightweight message with an optional action which briefly displays at the bottom of the screen.
To display a snack bar, call Scaffold.of(context).showSnackBar(), passing
an instance of SnackBar that describes the message.
To control how long the SnackBar remains visible, specify a duration.
See also:
- Scaffold.of, to obtain the current ScaffoldState, which manages the display and animation of snack bars.
- ScaffoldState.showSnackBar, which displays a SnackBar.
- ScaffoldState.removeCurrentSnackBar, which abruptly hides the currently displayed snack bar, if any, and allows the next to be displayed.
- SnackBarAction, which is used to specify an action button to show on the snack bar.
- material.google.com/components/snackbars-toasts.html
- Inheritance
- Object
- Widget
- StatelessWidget
- SnackBar
Static Methods
-
createAnimationController(
{TickerProvider vsync }) → AnimationController -
Creates an animation controller useful for driving a snack bar's entrance and exit animation.
Constructors
Properties
- action → SnackBarAction
-
(optional) An action that the user can take based on the snack bar.
read-only - animation → Animation<double>
-
The animation driving the entrance and exit of the snack bar.
read-only - backgroundColor → Color
-
The Snackbar's background color. By default the color is dark grey.
read-only - content → Widget
-
The primary content of the snack bar.
read-only - duration → Duration
-
The amount of time the snack bar should be displayed.
read-only - hashCode → int
-
Get a hash code for this object.
read-only, inherited - key → Key
-
Controls how one widget replaces another widget in the tree.
read-only, inherited - runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited
Operators
-
operator ==(
other) → bool -
The equality operator.
inherited
Methods
-
build(
BuildContext context) → Widget -
Describes the part of the user interface represented by this widget.
-
withAnimation(
Animation<double> newAnimation, { Key fallbackKey }) → SnackBar -
Creates a copy of this snack bar but with the animation replaced with the given animation.
-
createElement(
) → StatelessElement -
Creates a StatelessElement to manage this widget's location in the tree.
inherited -
debugFillDescription(
List<String> description) → void -
Add additional information to the given description for use by toString.
inherited -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed.
inherited -
toString(
) → String -
Returns a string representation of this object.
inherited -
toStringShort(
) → String -
A short, textual description of this widget.
inherited