PrimaryPointerGestureRecognizer class - gestures library

Constructors

PrimaryPointerGestureRecognizer({Duration deadline, Object debugOwner }): Initializes the deadline field during construction of subclasses.

Properties

deadline → Duration: If non-null, the recognizer will call didExceedDeadline after this amount of time has elapsed since starting to track the primary pointer.
final
initialPosition ↔ Offset: The global location at which the primary pointer contacted the screen.
read / write
primaryPointer ↔ int: The ID of the primary pointer this recognizer is tracking.
read / write
state ↔ GestureRecognizerState: The current state of the recognizer. [...]
read / write
debugDescription → String: Returns a very short pretty description of the gesture that the recognizer looks for, like 'tap' or 'horizontal drag'.
read-only, inherited
debugOwner → Object: The recognizer's owner. [...]
final, inherited
hashCode → int: The hash code for this object. [...]
read-only, inherited
runtimeType → Type: A representation of the runtime type of the object.
read-only, inherited
team ↔ GestureArenaTeam: The team that this recognizer belongs to, if any. [...]
read / write, inherited

Methods

addPointer(PointerDownEvent event) → void: Registers a new pointer that might be relevant to this gesture detector. [...]
override
debugFillProperties(DiagnosticPropertiesBuilder properties) → void: Add additional properties associated with the node. [...]
override
didExceedDeadline() → void: Override to be notified when deadline is exceeded. [...]
@protected
didStopTrackingLastPointer(int pointer) → void: Called when the number of pointers this recognizer is tracking changes from one to zero. [...]
override
dispose() → void: Releases any resources used by the object. [...]
override
handleEvent(PointerEvent event) → void: Called when a pointer event is routed to this recognizer.
override
handlePrimaryPointer(PointerEvent event) → void: Override to provide behavior for the primary pointer when the gesture is still possible.
@protected
rejectGesture(int pointer) → void: Called when this member loses the arena for the given pointer id.
override
acceptGesture(int pointer) → void: Called when this member wins the arena for the given pointer id.
inherited
debugDescribeChildren() → List<DiagnosticsNode>: Returns a list of DiagnosticsNode objects describing this node's children. [...]
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
noSuchMethod(Invocation invocation) → dynamic: Invoked when a non-existent method or property is accessed. [...]
inherited
resolve(GestureDisposition disposition) → void: Resolves this recognizer's participation in each gesture arena with the given disposition.
@mustCallSuper, @protected, inherited
startTrackingPointer(int pointer) → void: Causes events related to the given pointer ID to be routed to this recognizer. [...]
@protected, inherited
stopTrackingIfPointerNoLongerDown(PointerEvent event) → void: Stops tracking the pointer associated with the given event if the event is a PointerUpEvent or a PointerCancelEvent event.
@protected, inherited
stopTrackingPointer(int pointer) → void: Stops events related to the given pointer ID from being routed to this recognizer. [...]
@protected, inherited
toDiagnosticsNode({String name, DiagnosticsTreeStyle style }) → DiagnosticsNode: Returns a debug representation of the object that is used by debugging tools and by toStringDeep. [...]
inherited
toString({DiagnosticLevel minLevel: DiagnosticLevel.debug }) → String: Returns 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 ==(dynamic other) → bool: The equality operator. [...]
inherited