FSelectTileGroup<T> class

A set of tiles that are treated as a single selection.

A FSelectTileGroup is internally a FormField, therefore it can be used in a Form.

For desktop, a FSelectGroup is generally recommended over this.

See:

Inheritance
Mixed-in types

Constructors

FSelectTileGroup.new({required FSelectTileGroupController<T> selectController, required List<FSelectTile<T>> children, ScrollController? scrollController, FTileGroupStyle? style, double? cacheExtent, double maxHeight = double.infinity, DragStartBehavior dragStartBehavior = DragStartBehavior.start, ScrollPhysics physics = const ClampingScrollPhysics(), FTileDivider divider = FTileDivider.indented, Widget? label, Widget? description, String? semanticsLabel, ValueChanged<Set<T>>? onChange, ValueChanged<(T, bool)>? onSelect, Widget errorBuilder(BuildContext, String) = FFormFieldProperties.defaultErrorBuilder, FormFieldSetter<Set<T>>? onSaved, FormFieldValidator<Set<T>>? validator, String? forceErrorText, bool enabled = true, AutovalidateMode? autovalidateMode, Key? key})
Creates a FSelectTileGroup.
FSelectTileGroup.builder({required FSelectTileGroupController<T> selectController, required FSelectTile<T>? tileBuilder(BuildContext, int), int? count, ScrollController? scrollController, FTileGroupStyle? style, double? cacheExtent, double maxHeight = double.infinity, DragStartBehavior dragStartBehavior = DragStartBehavior.start, ScrollPhysics physics = const ClampingScrollPhysics(), FTileDivider divider = FTileDivider.indented, Widget? label, Widget? description, String? semanticsLabel, ValueChanged<Set<T>>? onChange, ValueChanged<(T, bool)>? onSelect, Widget errorBuilder(BuildContext, String) = FFormFieldProperties.defaultErrorBuilder, FormFieldSetter<Set<T>>? onSaved, FormFieldValidator<Set<T>>? validator, String? forceErrorText, bool enabled = true, AutovalidateMode? autovalidateMode, Key? key})
Creates a FSelectTileGroup that lazily builds its children.

Properties

autovalidateMode → AutovalidateMode
Used to enable/disable this form field auto validation and update its error text.
finalinherited
builder → FormFieldBuilder<Set<T>>
Function that returns the widget representing this form field.
finalinherited
cacheExtent → double?
The scrollable area's cache extent in logical pixels.
final
description → Widget?
The description displayed below the group.
final
divider → FTileDivider
The divider between tiles.
final
dragStartBehavior → DragStartBehavior
Determines the way that drag start behavior is handled. Defaults to DragStartBehavior.start.
final
enabled → bool
Whether the form is able to receive user input.
finalinherited
errorBuilder → FormFieldErrorBuilder?
Function that returns the widget representing the error to display.
finalinherited
forceErrorText → String?
An optional property that forces the FormFieldState into an error state by directly setting the FormFieldState.errorText property without running the validator function.
finalinherited
hashCode → int
The hash code for this object.
no setterinherited
initialValue → Set<T>?
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
label → Widget?
The label displayed above the group.
final
maxHeight → double
The max height, in logical pixels. Defaults to infinity.
final
onChange → ValueChanged<Set<T>>?
The callback that is called when the value changes.
final
onSaved → FormFieldSetter<Set<T>>?
An optional method to call with the final value when the form is saved via FormState.save.
finalinherited
onSelect → ValueChanged<(T, bool)>?
The callback that is called when an item is selected.
final
physics → ScrollPhysics
The scroll physics of the group. Defaults to ClampingScrollPhysics.
final
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
scrollController → ScrollController?
The scroll controller used to control the position to which this group is scrolled.
final
selectController → FSelectTileGroupController<T>
The controller.
final
semanticsLabel → String?
The semantic label used by accessibility frameworks.
final
style → FTileGroupStyle?
The style. Defaults to FThemeData.tileGroupStyle.
final
validator → FormFieldValidator<Set<T>>?
An optional method that validates an input. Returns an error string to display if the input is invalid, or null otherwise.
finalinherited

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → FormFieldState<Set<T>>
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.
override
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