ShortcutManager class Null safety

A manager of keyboard shortcut bindings used by Shortcuts to handle key events.

The manager may be listened to (with addListener/removeListener) for change notifications when the shortcuts change.

Typically, a Shortcuts widget supplies its own manager, but in uncommon cases where overriding the usual shortcut manager behavior is desired, a subclassed ShortcutManager may be supplied.

Mixed in types

Constructors

ShortcutManager({Map<ShortcutActivator, Intent> shortcuts = const <ShortcutActivator, Intent>{}, bool modal = false})
Constructs a ShortcutManager.

Properties

hashCode → int
The hash code for this object.
read-only, inherited
hasListeners → bool
Whether any listeners are currently registered.
@protected, read-only, inherited
True if the ShortcutManager should not pass on keys that it doesn't handle to any key-handling widgets that are ancestors to this one.
final
runtimeType → Type
A representation of the runtime type of the object.
read-only, inherited
shortcuts ↔ Map<ShortcutActivator, Intent>
Returns the shortcut map.
read / write

Methods

addListener(VoidCallback listener) → void
Register a closure to be called when the object changes.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
override
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).
@mustCallSuper, inherited
handleKeypress(BuildContext context, RawKeyEvent event) → KeyEventResult
Handles a key press event in the given context.
@protected
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
inherited
notifyListeners() → void
Call all the registered listeners.
@protected, @visibleForTesting, inherited
removeListener(VoidCallback listener) → void
Remove a previously registered closure from the list of closures that are notified when the object changes.
inherited
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
inherited
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String
A string representation of this object.
inherited
toStringShort() → String
A brief description of this object, usually just the runtimeType and the hashCode.
inherited

Operators

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