NiceJsonSchemaForm class

A form widget that renders a form from a JSON Schema.

Inheritance
Available extensions

Constructors

NiceJsonSchemaForm({Key? key, required Map<String, dynamic> schema, Map<String, dynamic> uiSchema = const {}, Map<String, dynamic>? initialValues, void onChanged(Map<String, dynamic> values)?, void onSubmit(Map<String, dynamic> values)?, String? submitLabel, bool readOnly = false, int columnsPerRow = 1, bool showValidationErrors = true, Map<String, Widget Function(BuildContext, JsonSchemaProperty, dynamic, ValueChanged )> customWidgets = const {}})
const
NiceJsonSchemaForm.fromJson(String jsonSchema, {Key? key, String? uiSchemaJson, Map<String, dynamic>? initialValues, void onChanged(Map<String, dynamic> values)?, void onSubmit(Map<String, dynamic> values)?, String? submitLabel, bool readOnly = false, int columnsPerRow = 1})
Factory constructor from JSON string.
factory

Properties

columnsPerRow → int
Number of columns per row (for responsive layout).
final
customWidgets → Map<String, Widget Function(BuildContext, JsonSchemaProperty, dynamic, ValueChanged )>
Custom widget builders for specific fields or types.
final
hashCode → int
The hash code for this object.
no setterinherited
initialValues → Map<String, dynamic>?
Initial form values.
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
onChanged → void Function(Map<String, dynamic> values)?
Called when any field value changes.
final
onSubmit → void Function(Map<String, dynamic> values)?
Called when form is submitted (if validation passes).
final
readOnly → bool
Whether all fields are read-only.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
schema → Map<String, dynamic>
JSON Schema definition (draft-07 compatible).
final
showValidationErrors → bool
Whether to show validation errors inline.
final
submitLabel → String?
Label for the submit button.
final
uiSchema → Map<String, dynamic>
Optional UI Schema for widget overrides (react-jsonschema-form style).
final

Methods

asFocusable({FocusNode? focusNode, bool autofocus = false}) → Widget

Available on Widget, provided by the NiceAccessibilityExtension extension

Mark this widget as focusable.
asSemanticButton({String? label, VoidCallback? onTap}) → Widget

Available on Widget, provided by the NiceAccessibilityExtension extension

Mark this widget as a button for screen readers.
asSemanticHeading(String label) → Widget

Available on Widget, provided by the NiceAccessibilityExtension extension

Mark this widget as a heading for screen readers.
createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<NiceJsonSchemaForm>
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
excludeFromSemantics() → Widget

Available on Widget, provided by the NiceAccessibilityExtension extension

Exclude this widget from the semantic tree.
mergeSemantics() → Widget

Available on Widget, provided by the NiceAccessibilityExtension extension

Merge semantics of child widgets.
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
withSemanticLabel(String label) → Widget

Available on Widget, provided by the NiceAccessibilityExtension extension

Add a semantic label to this widget.

Operators

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