GestureDetector class

A widget that detects gestures.

Attempts to recognize gestures that correspond to its non-null callbacks.

See also:

Inheritance

Constructors

GestureDetector({Key? key, VoidCallback? onTap, VoidCallback? onDoubleTap, EventCallback? onTapEvent, EventCallback? onDoubleTapEvent, EventCallback? onMouseEnterEvent, EventCallback? onMouseLeaveEvent, HitTestBehavior behaviour = HitTestBehavior.deferToChild, required Widget child})
const

Properties

behaviour HitTestBehavior
Hit testing behaviour.
final
child Widget
Child widget.
finalinherited
correspondingTag DomTagType
Corresponding HTML tag to use to render this widget
no setteroverride
hashCode int
The hash code for this object.
no setterinherited
key Key?
Keys help Rad identify which widgets have changed, are added, or are removed when a widget has multiple sibling widgets.
finalinherited
onDoubleTap VoidCallback?
final
onDoubleTapEvent EventCallback?
final
onMouseEnterEvent EventCallback?
final
onMouseLeaveEvent EventCallback?
final
onTap VoidCallback?
final
onTapEvent EventCallback?
final
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
widgetCaptureEventListeners Map<DomEventType, EventCallback?>
Events that this widget is listening to in capturing phase.
no setterinherited
widgetEventListeners Map<DomEventType, EventCallback?>
Events that this widget is listening to in bubbling phase.
no setteroverride

Methods

createRenderElement(RenderElement parent) RenderElement
Create element for current widget.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
shouldUpdateWidget(Widget oldWidget) bool
Whether to update current widget.
override
shouldUpdateWidgetChildren(Widget oldWidget, bool shouldUpdateWidget) bool
Whether to update current widget's children.
inherited
toString() String
A string representation of this object.
inherited

Operators

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