ShortcutRegistrar class Null safety
A widget that holds a ShortcutRegistry which allows descendants to add, remove, or replace shortcuts.
This widget holds a ShortcutRegistry so that its descendants can find it with ShortcutRegistry.of or ShortcutRegistry.maybeOf.
The registered shortcuts are valid whenever a widget below this one in the hierarchy has focus.
To add shortcuts to the registry, call ShortcutRegistry.of or ShortcutRegistry.maybeOf to get the ShortcutRegistry, and then add them using ShortcutRegistry.addAll, which will return a ShortcutRegistryEntry which must be disposed by calling ShortcutRegistryEntry.dispose when the shortcuts are no longer needed.
To replace or update the shortcuts in the registry, call ShortcutRegistryEntry.replaceAll.
To remove previously added shortcuts from the registry, call ShortcutRegistryEntry.dispose on the entry returned by ShortcutRegistry.addAll.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- ShortcutRegistrar
Constructors
- ShortcutRegistrar({Key? key, required Widget child})
-
Creates a const ShortcutRegistrar.
const
Properties
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< ShortcutRegistrar> -
Creates the mutable state for this widget at a given location in the tree.
override
-
debugDescribeChildren(
) → List< DiagnosticsNode> -
Returns a list of
DiagnosticsNodeobjects describing this node's children.protected">@protectedinherited -
debugFillProperties(
DiagnosticPropertiesBuilder properties) → void -
Add additional properties associated with the node.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed.
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
-
toStringDeep(
{String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String -
Returns a string representation of this node and its descendants.
inherited
-
toStringShallow(
{String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String -
Returns a one-line detailed description of the object.
inherited
-
toStringShort(
) → String -
A short, textual description of this widget.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
nonVirtual">@nonVirtualinherited