LogicalKeySet class Null safety
A set of LogicalKeyboardKeys that can be used as the keys in a map.
LogicalKeySet can be used as a ShortcutActivator. It is not recommended
to use LogicalKeySet for a common shortcut such as Delete
or Ctrl+C
,
prefer SingleActivator when possible, whose behavior more closely resembles
that of typical platforms.
When used as a ShortcutActivator, LogicalKeySet will activate the intent when all keys are pressed, and no others, except that modifier keys are considered without considering sides (e.g. control left and control right are considered the same).
- Control left, then C.
- Control right, then C.
- C, then Control left.
But not when:
- Control left, then A, then C.
flutter create --sample=widgets.LogicalKeySet.1 mysample
This is also a thin wrapper around a Set, but changes the equality comparison from an identity comparison to a contents comparison so that non-identical sets with the same keys in them will compare as equal.
- Inheritance
-
- Object
- KeySet<
LogicalKeyboardKey> - LogicalKeySet
- Implemented types
- Mixed in types
Constructors
- LogicalKeySet(LogicalKeyboardKey key1, [LogicalKeyboardKey? key2, LogicalKeyboardKey? key3, LogicalKeyboardKey? key4])
- A constructor for making a LogicalKeySet of up to four keys.
-
LogicalKeySet.fromSet(Set<
LogicalKeyboardKey> keys) - Create a LogicalKeySet from a set of LogicalKeyboardKeys.
Properties
- hashCode → int
-
The hash code for this object.
latefinalinherited
-
keys
→ Set<
LogicalKeyboardKey> -
Returns a copy of the KeyboardKeys in this KeySet.
read-onlyinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
read-onlyinherited
-
triggers
→ Iterable<
LogicalKeyboardKey> -
All the keys that might be the final event to trigger this shortcut.
read-onlyoverride
Methods
-
accepts(
RawKeyEvent event, RawKeyboard state) → bool -
Whether the triggering
event
and the keyboardstate
at the time of the event meet required conditions, providing that the event is a triggering event.override -
debugDescribeKeys(
) → String -
Returns a description of the key set that is short and readable.
override
-
debugFillProperties(
DiagnosticPropertiesBuilder properties) → void -
Add additional properties associated with the node.
override
-
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
-
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