Displays a diagonal message above the corner of another widget.
Useful for showing the execution mode of an app (e.g., that asserts are enabled.)
See also:
- Inheritance
- Object
- Widget
- StatelessWidget
- Banner
Constructors
- Banner({Key key, Widget child, String message, BannerLocation location })
-
Creates a banner.
Properties
- child → Widget
-
The widget to show behind the banner.
read-only - location → BannerLocation
-
Where to show the banner (e.g., the upper right corder).
read-only - message → String
-
The message to show in the banner.
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.
-
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