FormListBuilder<T, TValue> class

A builder that can add and delete forms.

Make builder return each form.

You can specify top or bottom to place additional buttons on the form.

If form is specified, the timing when onSaved is executed is before the timing when onSaved of the form inside builder is executed, so it is possible to initialize the array.

Set the initial data by specifying initialValue.

フォームの追加削除を行うことができるビルダー。

builderに各フォームを返すようにしてください。

topやbottomを指定することでフォームの追加ボタンの設置を行うことが可能です。

formを指定した場合、onSavedが実行されるタイミングがbuilderの中身のフォームのonSavedが実行されるタイミングの前になるので、配列の初期化を行ったりが可能です。

initialValueを指定して初期のデータを設定してください。

Inheritance
Available Extensions

Constructors

FormListBuilder({Key? key, FormController<TValue>? form, Widget top(BuildContext context, FormAppendableListBuilderRef<T, TValue> ref)?, Widget bottom(BuildContext context, FormAppendableListBuilderRef<T, TValue> ref)?, FormStyle? style, required Widget builder(BuildContext context, FormAppendableListBuilderRef<T, TValue> ref, T item, int index), TValue onSaved(List<T> value)?, String? validator(List<T> value)?, bool readOnly = false, List<T>? initialValue, bool enabled = true, bool keepAlive = true})
A builder that can add and delete forms.

Properties

autovalidateMode → AutovalidateMode
Used to enable/disable this form field auto validation and update its error text.
finalinherited
bottom → (Widget Function(BuildContext context, FormAppendableListBuilderRef<T, TValue> ref)?)
Widget to be displayed at the bottom of the list.
final
builder → FormFieldBuilder<List<T>>
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
enabled → bool
Whether the form is able to receive user input.
finalinherited
form → FormController<TValue>?
Context for forms.
final
hashCode → int
The hash code for this object.
no setterinherited
initialValue → List<T>?
An optional value to initialize the form field to, or null otherwise.
finalinherited
keepAlive → bool
If placed in a list, whether or not it should not be discarded on scrolling.
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
onSaved → FormFieldSetter<List<T>>?
An optional method to call with the final value when the form is saved via FormState.save.
finalinherited
readOnly → bool
If this is true, the form cannot be filled out and changed from its initial value.
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
style → FormStyle?
Form Style.
final
top → (Widget Function(BuildContext context, FormAppendableListBuilderRef<T, TValue> ref)?)
Widget to be displayed at the top of the list.
final
validator → FormFieldValidator<List<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<List<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.
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