LimitedBox class

A box that limits its size only when it's unconstrained.

If the incoming maximum width is unbounded (infinite), maxWidth is used as the constraint. Similarly for maxHeight. When the incoming constraints already have a finite bound, LimitedBox passes them through unchanged.

This is useful for widgets in lists or other unbounded parents where you want a reasonable maximum size without overriding explicit constraints.

LimitedBox(
  maxWidth: 100,
  maxHeight: 40,
  child: Text('This text has a size limit in unbounded layouts'),
)

Inheritance

• Object
• Widget
• RenderObjectWidget
• SingleChildRenderObjectWidget
• LimitedBox

Constructors

LimitedBox({double maxWidth = double.infinity, double maxHeight = double.infinity, Widget? child, Key? key})

Properties

child → Widget?

final, inherited

children → List<Widget>

Child widgets that receive forwarded messages.

no setter, inherited

debugRenderObjectPassthrough → bool

Whether this widget is intentionally transparent to render-object layouts.

no setter, inherited

focusable → bool

Whether this widget can receive keyboard focus.

no setter, inherited

hashCode → int

The hash code for this object.

no setter, inherited

id → String

Unique identifier for this widget.

no setter, inherited

key → Key?

Key for preserving widget identity.

final, inherited

maxHeight → double

Maximum height to impose when parent provides no height constraint.

final

maxWidth → double

Maximum width to impose when parent provides no width constraint.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

theme → Theme

Access the current theme.

no setter, inherited

Methods

buildCachedView<T>(T builder(), Object? cacheKey) → T

Returns a cached view if the cache key matches.

inherited

createRenderObject() → RenderObject

override

didUnmountRenderObject(RenderObject renderObject) → void

inherited

handleInit() → Cmd?

Override this instead of init for widget-specific initialization.

inherited

handleIntercept(Msg msg) → (Widget, Cmd?)

Override this to handle messages before they reach children.

inherited

handleUpdate(Msg msg) → (Widget, Cmd?)

Override this to handle messages specific to this widget.

inherited

init() → Cmd?

Called once when the widget is first mounted.

inherited

invalidateCachedView() → void

Clears any cached view for this widget.

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

update(Msg msg) → (Model, Cmd?)

Handles messages by forwarding to children then calling handleUpdate.

inherited

updateRenderObject(RenderObject renderObject) → void

override

view() → Object

Renders the widget to a string or View.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited