FormBuilderSignaturePad class

Field with drawing pad on which user can doodle

Inheritance

Constructors

FormBuilderSignaturePad({Key? key, required String name, FormFieldValidator<Uint8List>? validator, Uint8List? initialValue, InputDecoration decoration = const InputDecoration(), ValueChanged<Uint8List?>? onChanged, ValueTransformer<Uint8List?>? valueTransformer, bool enabled = true, FormFieldSetter<Uint8List>? onSaved, AutovalidateMode? autovalidateMode, VoidCallback? onReset, FocusNode? focusNode, Color backgroundColor = Colors.transparent, String? clearButtonText, double? width, double height = 200, SignatureController? controller, Border? border})
Creates field with drawing pad on which user can doodle

Properties

autovalidateMode → AutovalidateMode
Used to enable/disable this form field auto validation and update its error text.
finalinherited
backgroundColor → Color
Color of the canvas
final
border → Border?
Styles the canvas border
final
builder → FormFieldBuilder<Uint8List>
Function that returns the widget representing this form field. It is passed the form field state as input, containing the current value and validation state of this field.
finalinherited
clearButtonText → String?
Text to be displayed on the clear button which clears user input from the canvas
final
controller → SignatureController?
Controls the value of the signature pad.
final
decoration → InputDecoration
finalinherited
enabled → bool
Whether the form is able to receive user input.
finalinherited
focusNode → FocusNode?
An optional focus node to use as the focus node for this widget.
finalinherited
hashCode → int
The hash code for this object.
no setterinherited
height → double
Height of the canvas
final
initialValue → Uint8List?
An optional value to initialize the form field to, or null otherwise.
finalinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
name → String
Used to reference the field within the form, or to reference form data after the form is submitted.
finalinherited
onChanged → ValueChanged<Uint8List?>?
Called when the field value is changed.
finalinherited
onReset → VoidCallback?
Called when the field value is reset.
finalinherited
onSaved → FormFieldSetter<Uint8List>?
An optional method to call with the final value when the form is saved via FormState.save.
finalinherited
restorationId → String?
Restoration ID to save and restore the state of the form field.
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
validator → FormFieldValidator<Uint8List>?
An optional method that validates an input. Returns an error string to display if the input is invalid, or null otherwise.
finalinherited
valueTransformer → ValueTransformer<Uint8List?>?
Called just before field value is saved. Used to massage data just before committing the value.
finalinherited
width → double?
Width of the canvas
final

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → FormBuilderSignaturePadState
Creates the mutable state for this widget at a given location in the tree.
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

Operators

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