TouchConsumer class

A widget that listens for events from the nearest TouchInterceptor ancestor and calls callbacks in response to them.

Layout behavior

See BoxConstraints for an introduction to box layout models.

If it has a child, this widget defers to the child for sizing behavior. If it does not have a child, it grows to fit the parent instead.

Inheritance

TouchConsumer({Key? key, VoidCallback? onTouchDown, VoidCallback? onTouchEnter, VoidCallback? onTouchExit, VoidCallback? onTouchUp, Widget? child}): const

child → Widget?: The widget below this widget in the tree.
final
hashCode → int: The hash code for this object.
no setterinherited
key → Key?: Controls how one widget replaces another widget in the tree.
finalinherited
onTouchDown → VoidCallback?: Called when a pointer comes into contact with the screen at this widget's location.
final
onTouchEnter → VoidCallback?: Called when a pointer that has previously come into contact with the screen changes position and reaches this widget's location.
final
onTouchExit → VoidCallback?: Called when a pointer that has previously come into contact with the screen changes position and leaves this widget's location.
final
onTouchUp → VoidCallback?: Called when a pointer that has previously come into contact with the screen stops being in contact with the screen at this widget's location.
final
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited

createElement() → StatefulElement: Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → _TouchConsumerState: 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.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void: Add additional properties associated with the node.
inherited
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent 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