WidgetUpdatePolicy class sealed Widgets

When a WidgetTexture (or a WidgetComponent) re-captures its child.

Constructors

WidgetUpdatePolicy.interval(Duration duration)

Capture at most once per duration.

const

factory

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

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Constants

everyFrame → const WidgetUpdatePolicy

Capture every frame while attached (the default). Captures are throttled to one in flight, and the recording itself reuses the child's retained layers, so the steady-state cost is the rasterize and readback of content that is actually changing.

manual → const WidgetUpdatePolicy

Capture only when WidgetTextureController.requestCapture is called.