M3ESelectionController class

Index-based multi-select state for selection surfaces.

Inheritance

Constructors

M3ESelectionController({Set<int>? initialSelected})
Creates a selection controller.

Properties

hashCode → int
The hash code for this object.
no setterinherited
hasListeners → bool
Whether any listeners are currently registered.
no setterinherited
isSelectionMode → bool
Whether any item is selected.
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
selectedCount → int
Number of selected indices.
no setter
selectedIndices → Set<int>
Currently selected indices (unmodifiable view).
no setter

Methods

addListener(VoidCallback listener) → void
Register a closure to be called when the object changes.
inherited
allSelectedFor(int itemCount) → bool?
Tristate value for a select-all control given itemCount.
clear() → void
Clears all selection.
deselect(int index) → void
Deselects index if selected.
dispose() → void
Discards any resources used by the object.
inherited
isSelected(int index) → bool
Whether index is selected.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent 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
select(int index) → void
Selects index if not already selected.
selectAll(int itemCount) → void
Selects every index in 0..itemCount-1.
toggle(int index) → bool
Toggles selection for index. Returns the new selected state.
toString() → String
A string representation of this object.
inherited

Operators

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