DropdownButtonHideUnderline class

An inherited widget that causes any descendant DropdownButton widgets to not include their regular underline.

This is used by DataTable to remove the underline from any DropdownButton widgets placed within material data tables, as required by the material design specification.

Inheritance

Constructors

Creates a DropdownButtonHideUnderline. A non-null child must be given.
const

Properties

child → Widget
The widget below this widget in the tree. [...]
final, inherited
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

updateShouldNotify(covariant DropdownButtonHideUnderline oldWidget) → bool
Whether the framework should notify widgets that inherit from this widget. [...]
override
createElement() → InheritedElement
Inflates this configuration to a concrete instance. [...]
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

Static Methods

at(BuildContext context) → bool
Returns whether the underline of DropdownButton widgets should be hidden.