DropdownField<T extends Object> class
- Inheritance
-
- Object
- ChangeNotifier
- FormItem
- FormFieldItem<
T?> - DropdownField
Constructors
-
DropdownField({Key? key, required List<
T> items, required String placeholder, required Widget itemBuilder(T value), T? initialValue, ValueChanged<T?> ? onChanged, ValueChanged<T?> ? onSaved, bool isActive = true, bool isDisabled = false})
Properties
- focusNode → FocusNode
-
finalinherited
- hasChanges → bool
-
no setterinherited
- hashCode → int
-
The hash code for this object.
no setterinherited
- hasListeners → bool
-
Whether any listeners are currently registered.
no setterinherited
- isActive ↔ bool
-
getter/setter pairinherited
- isDisabled → bool
-
no setterinherited
- isRequired → bool
-
finalinherited
- isValid ↔ bool
-
getter/setter pairinherited
- itemBuilder → Widget Function(T value)
-
final
-
items
→ List<
T> -
final
- key → Key?
-
finalinherited
- margin → EdgeInsets?
-
finalinherited
-
onChanged
↔ ValueChanged<
T?> ? -
getter/setter pairinherited
-
onSaved
↔ ValueChanged<
T?> ? -
getter/setter pairinherited
- placeholder → String
-
final
- requiredText → String?
-
Custom required text, by default FormThemeData.requiredText
finalinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- value ↔ T?
-
getter/setter pair
Methods
-
addListener(
VoidCallback listener) → void -
Register a closure to be called when the object changes.
inherited
-
build(
BuildContext context) → Widget -
override
-
dispose(
) → void -
Discards any resources used by the object. After this is called, the
object is not in a usable state and should be discarded (calls to
addListener will throw after the object is disposed).
inherited
-
disposeWidget(
) → void -
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
notifyListeners(
) → void -
Call all the registered listeners.
inherited
-
removeListener(
VoidCallback listener) → void -
Remove a previously registered closure from the list of closures that are
notified when the object changes.
inherited
-
setDisabled(
bool value) → void -
inherited
-
setHasChanged(
bool value) → void -
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited