FingersGestureDetector class
A gesture detector that tracks multiple finger gestures and provides transformation matrices for translation, scaling, and rotation.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- FingersGestureDetector
Constructors
- FingersGestureDetector({Key? key, required MatrixUpdateCallback onMatrixUpdate, required Widget child, bool shouldTranslate = true, bool shouldScale = true, bool shouldRotate = true, bool clipChild = true, Alignment? focalPointAlignment, HitTestBehavior behavior = HitTestBehavior.deferToChild, double minScale = 0.1, double maxScale = 10.0})
-
const
Properties
- behavior → HitTestBehavior
-
Hit test behavior
final
- child → Widget
-
The child widget to detect gestures on
final
- clipChild → bool
-
Whether to clip the child widget
final
- focalPointAlignment → Alignment?
-
Alignment for the focal point
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- maxScale → double
-
Maximum scale factor
final
- minScale → double
-
Minimum scale factor
final
- onMatrixUpdate → MatrixUpdateCallback
-
Called when the transformation matrix updates
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- shouldRotate → bool
-
Whether to detect rotation gestures
final
- shouldScale → bool
-
Whether to detect scaling gestures
final
- shouldTranslate → bool
-
Whether to detect translation gestures
final
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< FingersGestureDetector> -
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, int wrapWidth = 65}) → 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.
inherited