DropdownFieldBlocBuilder<Value> class

A material design dropdown.

Inheritance

Constructors

const

Properties

animateWhenCanShow → bool
Set to true if you want animate size/fade, when the field bloc is added and removed from form bloc.
final
decoration → InputDecoration
The decoration to show around the field.
final
disabledHint → Widget?
A preferred placeholder widget that is displayed when the dropdown is disabled.
final
emptyItemLabel → String
A label to display for an empty item
final
enableOnlyWhenFormBlocCanSubmit → bool
If true, this widget will be enabled only when the state of the FormBloc that contains this FieldBloc has FormBlocState.canSubmit in true.
final
errorBuilder → FieldBlocErrorBuilder?
This function take the context and the FieldBlocState.error and must return a String error to display in the widget when has an error or null if you don't want to display the error. By default is FieldBlocBuilder.defaultErrorBuilder.
final
focusNode → FocusNode?
final
hashCode → int
The hash code for this object.
no setterinherited
hint → Widget?
A placeholder widget that is displayed by the dropdown button.
final
isEnabled → bool
If false the text field is "disabled": it ignores taps and its decoration is rendered in grey.
final
isExpanded → bool
Set the dropdown's inner contents to horizontally fill its parent.
final
itemBuilder → FieldItemBuilder<Value>
This function takes the context and the value and must return a FieldItem that represent that value.
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
maxLines → int?
Defaults is 2
final
nextFocusNode → FocusNode?
When change the value of the FieldBloc, this will call nextFocusNode.requestFocus().
final
onChanged → ValueChanged<Value?>?
Called when the user selects an item.
final
padding → EdgeInsetsGeometry?
The amount of space by which to inset the child.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
selectedItemBuilder → ItemBuilder<Value>?
This function is invoked to render the selected item
final
selectedMaxLines → int?
Defaults is maxLines
final
selectedTextStyle → TextStyle?
The style to use for the text being edited.
final
selectFieldBloc → SelectFieldBloc<Value, dynamic>
The fieldBloc for rebuild the widget when its state changes.
final
showEmptyItem → bool
If true an empty item is showed at the top of the dropdown items, and can be used for deselect.
final
textAlign → TextAlign?
How the text in the decoration should be aligned horizontally.
final
textColor → MaterialStateProperty<Color?>?
It is the color of the text
final
textOverflow → TextOverflow?
Defaults is TextOverflow.ellipsis
final
textStyle → TextStyle?
The style to use for the text being edited.
final

Methods

build(BuildContext context) → Widget
Describes the part of the user interface represented by this widget.
override
createElement() → StatelessElement
Creates a StatelessElement to manage this widget's location in the tree.
inherited
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
themeStyleOf(BuildContext context) → DropdownFieldTheme
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