KeyEvent class Null safety

Defines the interface for keyboard key events.

The KeyEvent provides a universal model for key event information from a hardware keyboard across platforms.

See also:

  • HardwareKeyboard for full introduction to key event model and handling.
  • KeyDownEvent, a subclass for events representing the user pressing a key.
  • KeyRepeatEvent, a subclass for events representing the user holding a key, causing repeated events.
  • KeyUpEvent, a subclass for events representing the user releasing a key.
Mixed in types
Implementers
Annotations

Constructors

KeyEvent({required PhysicalKeyboardKey physicalKey, required LogicalKeyboardKey logicalKey, String? character, required Duration timeStamp, bool synthesized})
Create a const KeyEvent by providing each field.
const

Properties

character String?
Returns the Unicode character (grapheme cluster) completed by this keystroke, if any. [...]
final
hashCode int
The hash code for this object. [...]
read-only, inherited
logicalKey LogicalKeyboardKey
Returns an object representing the logical key that was pressed. [...]
final
physicalKey PhysicalKeyboardKey
Returns an object representing the physical location of this key. [...]
final
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
synthesized bool
Whether this event is synthesized by Flutter to synchronize key states. [...]
final
timeStamp Duration
Time of event, relative to an arbitrary start point. [...]
final

Methods

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