HasSelectionRationale<T> class abstract

An optional interface for describing why an item is/is not selectable.

Example use: MaterialSuggestItem(@Optional() HasSelectableRationale rationale) { // May use rationale.getSelectableRationale to show a tooltip. }

It is recommended you always make this optional when injecting, or default to HasSelectionRationale.none to avoid null checks: selectionRationale ??= const HasSelectionRationale.none();

Constructors

HasSelectionRationale.none()

Create a default HasSelectionRationale that always returns null.

const

factory

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

getSelectableRationale(T item, [bool isSelectable = false]) → String?

Returns a string describing why item on why isSelectable.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited