CustomGestureDetector class Null safety

Recognizes custom gestures.

Custom gestures can be created by extending from Gesture class.

Inheritance

Constructors

CustomGestureDetector({Key? key, required Widget child, required List<Gesture> gestures, Function? onGestureStart, required dynamic onGestureEnd(bool success), HitTestBehavior? behavior})

Properties

behavior HitTestBehavior?
How this gesture detector should behave during hit testing. [...]
final
child Widget
Child wrapped by the gesture detector.
final
gestures List<Gesture>
List of gestures that need to be triggered to complete the gesture.
final
hashCode int
The hash code for this object. [...]
@nonVirtual, read-only, inherited
key Key?
Controls how one widget replaces another widget in the tree. [...]
final, inherited
onGestureEnd → dynamic Function(bool success)
Callback when a gesture ends. Whether it failed or succeeded is determined by the parameter success.
final
onGestureStart Function?
Callback when a gesture starts being detected.
final
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

Methods

createElement() StatefulElement
Creates a StatefulElement to manage this widget's location in the tree. [...]
inherited
createState() → _CustomGestureDetectorState
Creates the mutable state for this widget at a given location in the tree. [...]
override
debugDescribeChildren() List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children. [...]
@protected, inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node. [...]
inherited
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
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 short, textual description of this widget.
inherited

Operators

operator ==(Object other) bool
The equality operator. [...]
@nonVirtual, inherited