UAdminFields class

Owns the TextEditingControllers (and FocusNodes) a dialog or page creates, and tears them down exactly once, when the widget that shows them is disposed.

Admin dialogs build a dozen controllers per open. Created bare they are never disposed, so every reopen leaks the whole set. Create them through a bag and hand the dialog's root widget to scope, which disposes the bag from its own State.dispose() — after the closing route has finished its exit transition, which is what makes this safe where a bare dispose() after await is not.

final UAdminFields f = UAdminFields();
final TextEditingController title = f.text(p?.title);
await UNavigator.dialog(f.scope(StatefulBuilder(builder: ...)));

A bag held by a State instead of a dialog is disposed from that state:

final UAdminFields f = UAdminFields();
@override
void dispose() {
  f.dispose();
  super.dispose();
}

Constructors

UAdminFields()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

dispose() → void

Disposes everything the bag owns. Safe to call more than once.

focus() → FocusNode

A FocusNode owned by this bag.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

scope(Widget child) → Widget

Wraps child so this bag is disposed when child leaves the tree.

text([String? text]) → TextEditingController

A TextEditingController seeded with text, owned by this bag.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited