S2Selection<T> class Null safety

Inheritance
Implementers

Constructors

S2Selection()

Properties

choice ↔ dynamic
Returns the choice item(s)
covariantread / writeinherited-getter
error ↔ String
Validation error message
read / writeinherited
group → dynamic
Returns the group(s) data
read-onlyinherited
hashCode → int
The hash code for this object.
read-onlyinherited
hasListeners → bool
Whether any listeners are currently registered.
read-onlyinherited
initial ↔ dynamic
The initial selection
covariantread / write
isEmpty → bool
Returns true if there are no values in the chosen data
read-onlyinherited
isNotEmpty → bool
Returns true if there is at least one value in the chosen data
read-onlyinherited
isNotValid → bool
Returns true when the selection is not valid
read-onlyinherited
isValid → bool
Returns true when the selection is valid
read-onlyinherited
length → int
Returns the length of the choice
read-onlyinherited
runtimeType → Type
A representation of the runtime type of the object.
read-onlyinherited
subtitle → dynamic
Returns the subtitle(s) data
read-onlyinherited
title → dynamic
Returns the title(s) data
read-onlyinherited
validation ↔ dynamic
A Function used to validate the selection(s)
covariantread / writeinherited
value → dynamic
Returns the value(s) data
read-onlyinherited

Methods

addListener(VoidCallback listener) → void
Register a closure to be called when the object changes.
inherited
clear() → void
Removes all choice(s) from the selection
dispose() → void
Discards any resources used by the object. After this is called, the object is not in a usable state and should be discarded (calls to addListener will throw after the object is disposed).
inherited
has(S2Choice<T> choice) → bool
Returns true if the chosen contains the supplied choice item
inherited
hasAll(List<S2Choice<T>> choices) → bool
Returns `true if the chosen has every of the supplied choice items
inherited
hasAny(List<S2Choice<T>> choices) → bool
Returns true if the chosen has any of the supplied choice items
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
inherited
notifyListeners() → void
Call all the registered listeners.
inherited
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that are notified when the object changes.
inherited
reset() → void
Reset the current selection to the initial selection
select(S2Choice<T> choice, {bool selected = true}) → void
Select or unselect a choice
toString() → String
Returns a string that can be used as display, returns title if is valid and is not empty, returns placeholder if is valid and is empty.
inherited
toWidget() → Widget
Return a Text widget from toString
inherited
validate() → void
Validate the selection
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited