SimpleDialogOption 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.

Sample code

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

See also:



SimpleDialogOption({Key key, VoidCallback onPressed, Widget child })
Creates an option for a SimpleDialog.


child Widget
The widget below this widget in the tree. [...]
onPressed VoidCallback
The callback that is called when this option is selected. [...]
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


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. [...]
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. [...]
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
toDiagnosticsNode({String name, DiagnosticsTreeStyle style }) DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by toStringDeep. [...]
toString({DiagnosticLevel minLevel: DiagnosticLevel.debug }) String
Returns a string representation of this object.
toStringDeep({String prefixLineOne: '', String prefixOtherLines, DiagnosticLevel minLevel: DiagnosticLevel.debug }) String
Returns a string representation of this node and its descendants. [...]
toStringShallow({String joiner: ', ', DiagnosticLevel minLevel: DiagnosticLevel.debug }) String
Returns a one-line detailed description of the object. [...]
toStringShort() String
A short, textual description of this widget.


operator ==(dynamic other) bool
The equality operator. [...]