eliud_pkg_fundamentals
tutorial_dropdown_button
TutorialDropdownButtonWidget
optional property
optional
optional
property
Null safety
bool
?
optional
final
Implementation
final bool? optional;
eliud_pkg_fundamentals
tutorial_dropdown_button
TutorialDropdownButtonWidget
optional property
TutorialDropdownButtonWidget class
Constructors
TutorialDropdownButtonWidget
Properties
app
hashCode
key
optional
privilegeLevel
runtimeType
trigger
value
Methods
createElement
createState
debugDescribeChildren
debugFillProperties
noSuchMethod
toDiagnosticsNode
toString
toStringDeep
toStringShallow
toStringShort
Operators
operator ==