Scratcher class
Scratcher widget which covers given child with scratchable overlay.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- Scratcher
Constructors
- Scratcher({Key? key, required Widget child, bool enabled = true, double? threshold, double brushSize = 25, ScratchAccuracy accuracy = ScratchAccuracy.high, Color color = Colors.black, Image? image, bool rebuildOnResize = true, dynamic onChange(double value)?, VoidCallback? onThreshold, VoidCallback? onScratchStart, VoidCallback? onScratchUpdate, VoidCallback? onScratchEnd})
Properties
- accuracy → ScratchAccuracy
-
Determines how accurate the progress should be reported.
Lower accuracy means higher performance.
final
- brushSize → double
-
Size of the brush. The bigger it is the faster user can scratch the card.
final
- child → Widget
-
Widget rendered under the scratch area.
final
- color → Color
-
Color used to cover the child widget.
final
- enabled → bool
-
Whether new scratches can be applied
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- image → Image?
-
Image widget used to cover the child widget.
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- onChange → dynamic Function(double value)?
-
Callback called when new part of area is revealed (min 0.1% difference, or progress == 100).
final
- onScratchEnd → VoidCallback?
-
Callback called when scratching ends
final
- onScratchStart → VoidCallback?
-
Callback called when scratching starts
final
- onScratchUpdate → VoidCallback?
-
Callback called during scratching
final
- onThreshold → VoidCallback?
-
Callback called when threshold is reached.
final
- rebuildOnResize → bool
-
Determines if the scratcher should rebuild itself when space constraints change (resize).
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- threshold → double?
-
Percentage level of scratch area which should be revealed to complete.
final
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → ScratcherState -
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