SimpleDialogOptionModifier class

An option used in a SimpleDialog.

A simple dialog offers the user a choice between several options. This widget is commonly used to represent each of the options. If the user selects this option, the widget will call the onPressed callback, which typically uses Navigator.pop to close the dialog.

The padding on a SimpleDialogOption is configured to combine with the default SimpleDialog.contentPadding so that each option ends up 8 pixels from the other vertically, with 20 pixels of spacing between the dialog's title and the first option, and 24 pixels of spacing between the last option and the bottom of the dialog.

{@tool snippet}

SimpleDialogOption(
  onPressed: () { Navigator.pop(context, Department.treasury); },
  child: const Text('Treasury department'),
)

{@end-tool}

See also:

Inheritance
Available extensions

Constructors

SimpleDialogOptionModifier({Key? key, Widget? child, Key? modifierKey, VoidCallback? onPressed, EdgeInsets? padding})
Creates an option for a SimpleDialog.
const

Properties

hashCode int
The hash code for this object.
no setterinherited
key Key?
Controls how one widget replaces another widget in the tree.
finalinherited
modifierKey Key?
The actual key of the widget, which Modifier wrapped
finalinherited
onPressed VoidCallback?
The callback that is called when this option is selected.
final
padding EdgeInsets?
The amount of space to surround the child with.
final
runtimeType Type
A representation of the runtime type of the object.
no setterinherited

Methods

build(BuildContext context) Widget
Describes the part of the user interface represented by this widget.
inherited
buildWithChild(BuildContext context, Widget? child) Widget
A build method that receives an extra child parameter.
override
createElement() SingleChildStatelessElement
Create a SingleChildStatelessElement
inherited
debugDescribeChildren() List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent 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 DiagnosticsNode.toStringDeep.
inherited
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) String
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 ==(Object other) bool
The equality operator.
inherited