MultiTapGestureRecognizer class Null safety

Recognizes taps on a per-pointer basis.

MultiTapGestureRecognizer considers each sequence of pointer events that could constitute a tap independently of other pointers: For example, down-1, down-2, up-1, up-2 produces two taps, on up-1 and up-2.

See also:

Inheritance

Constructors

MultiTapGestureRecognizer({Duration longTapDelay = Duration.zero, Object? debugOwner, @Deprecated('Migrate to supportedDevices. ' 'This feature was deprecated after v2.3.0-1.0.pre.') PointerDeviceKind? kind, Set<PointerDeviceKind>? supportedDevices})
Creates a multi-tap gesture recognizer.

Properties

debugDescription String
Returns a very short pretty description of the gesture that the recognizer looks for, like 'tap' or 'horizontal drag'.
read-only, override
debugOwner Object?
The recognizer's owner.
final, inherited
gestureSettings DeviceGestureSettings?
Optional device specific configuration for device gestures that will take precedence over framework defaults.
read / write, inherited
hashCode int
The hash code for this object.
read-only, inherited
longTapDelay Duration
The amount of time between onTapDown and onLongTapDown.
read / write
onLongTapDown GestureMultiTapDownCallback?
A pointer that might cause a tap is still in contact with the screen at a particular location after longTapDelay.
read / write
onTap GestureMultiTapCallback?
A tap has occurred.
read / write
onTapCancel GestureMultiTapCancelCallback?
The pointer that previously triggered onTapDown will not end up causing a tap.
read / write
onTapDown GestureMultiTapDownCallback?
A pointer that might cause a tap has contacted the screen at a particular location.
read / write
onTapUp GestureMultiTapUpCallback?
A pointer that will trigger a tap has stopped contacting the screen at a particular location.
read / write
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

Methods

acceptGesture(int pointer) → void
Called when this member wins the arena for the given pointer id.
override
addAllowedPointer(PointerDownEvent event) → void
Registers a new pointer that's been checked to be allowed by this gesture recognizer.
override
addAllowedPointerPanZoom(PointerPanZoomStartEvent event) → void
Registers a new pointer pan/zoom that's been checked to be allowed by this gesture recognizer.
@protected, inherited
addPointer(PointerDownEvent event) → void
Registers a new pointer that might be relevant to this gesture detector.
inherited
addPointerPanZoom(PointerPanZoomStartEvent event) → void
Registers a new pointer pan/zoom that might be relevant to this gesture detector.
inherited
debugDescribeChildren() List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
dispose() → void
Releases any resources used by the object.
override
getKindForPointer(int pointer) PointerDeviceKind
For a given pointer ID, returns the device kind associated with it.
@protected, inherited
handleNonAllowedPointer(PointerDownEvent event) → void
Handles a pointer being added that's not allowed by this recognizer.
@protected, inherited
handleNonAllowedPointerPanZoom(PointerPanZoomStartEvent event) → void
Handles a pointer pan/zoom being added that's not allowed by this recognizer.
@protected, inherited
invokeCallback<T>(String name, RecognizerCallback<T> callback, {String debugReport()?}) → T?
Invoke a callback provided by the application, catching and logging any exceptions.
@protected, inherited
isPointerAllowed(PointerDownEvent event) bool
Checks whether or not a pointer is allowed to be tracked by this recognizer.
@protected, inherited
isPointerPanZoomAllowed(PointerPanZoomStartEvent event) bool
Checks whether or not a pointer pan/zoom is allowed to be tracked by this recognizer.
@protected, inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed.
inherited
rejectGesture(int pointer) → void
Called when this member loses the arena for the given pointer id.
override
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 brief description of this object, usually just the runtimeType and the hashCode.
inherited

Operators

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