GestureRecognizer class

The base class that all gesture recognizers inherit from.

Provides a basic API that can be used by classes that work with gesture recognizers but don't care about the specific details of the gestures recognizers themselves.

See also:

Inheritance
Mixes-in
Implemented by

Constructors

GestureRecognizer({Object debugOwner })
Initializes the 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
debugOwner Object
The recognizer's owner. [...]
final
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

Methods

addPointer(PointerDownEvent event) → void
Registers a new pointer that might be relevant to this gesture detector. [...]
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
dispose() → void
Releases any resources used by the object. [...]
@mustCallSuper
invokeCallback<T>(String name, RecognizerCallback<T> callback, { String debugReport() }) → T
Invoke a callback provided by the application, catching and logging any exceptions. [...]
@protected
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
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.
inherited
toDiagnosticsNode({String name, DiagnosticsTreeStyle style }) DiagnosticsNode
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
inherited

Operators

operator ==(dynamic other) bool
The equality operator. [...]
inherited