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
-
- Object
- GestureArenaMember
- GestureRecognizer
- MultiTapGestureRecognizer
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-onlyoverride
- debugOwner → Object?
-
The recognizer's owner.
finalinherited
- gestureSettings ↔ DeviceGestureSettings?
-
Optional device specific configuration for device gestures that will
take precedence over framework defaults.
read / writeinherited
- hashCode → int
-
The hash code for this object.
read-onlyinherited
- 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-onlyinherited
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">@protectedinherited
-
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
DiagnosticsNodeobjects 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">@protectedinherited
-
handleNonAllowedPointer(
PointerDownEvent event) → void -
Handles a pointer being added that's not allowed by this recognizer.
protected">@protectedinherited
-
handleNonAllowedPointerPanZoom(
PointerPanZoomStartEvent event) → void -
Handles a pointer pan/zoom being added that's not allowed by this recognizer.
protected">@protectedinherited
-
invokeCallback<
T> (String name, RecognizerCallback< T> callback, {String debugReport()?}) → T? -
Invoke a callback provided by the application, catching and logging any
exceptions.
protected">@protectedinherited
-
isPointerAllowed(
PointerDownEvent event) → bool -
Checks whether or not a pointer is allowed to be tracked by this recognizer.
protected">@protectedinherited
-
isPointerPanZoomAllowed(
PointerPanZoomStartEvent event) → bool -
Checks whether or not a pointer pan/zoom is allowed to be tracked by this recognizer.
protected">@protectedinherited
-
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