rive library Null safety

Classes

Artboard
ArtboardBase
Fill
A fill Shape painter.
FillBase
LinearAnimation
LinearAnimationBase
LinearAnimationInstance
LinearGradient
A core linear gradient. Can be added as a child to a Shape's Fill or Stroke to paint that Fill or Stroke with a gradient. This is the foundation for the RadialGradient which is very similar but also has a radius value.
LinearGradientBase
RadialGradient
RadialGradientBase
Rive
RiveAnimationController<T>
Abstraction for receiving a per frame callback while isPlaying is true to apply animation based on an elapsed amount of time.
RiveFile
Encapsulates a RiveFile and provides access to the list of Artboard objects it contains.
RiveRenderObject
RuntimeArtboard
This artboard type is purely for use by the runtime system and should not be directly referenced. Use the Artboard type for any direct interactions with an artboard, and use extension methods to add functionality to Artboard.
Shape
ShapeBase
SimpleAnimation
A simple RiveAnimationController that plays back a LinearAnimation defined by an artist. All playback parameters (looping, speed, keyframes) are artist defined in the Rive editor. This takes a declaritive approach of using an animationName as the only requirement for resolving the animation. When the controller is added to an artboard (note that due to widget lifecycles it could get re-initialized on another artboard later) it'll look for the animation. Not finding the animation is a condition this example deals with by simply nulling the AnimationInstance _instance which means it won't be applied during advance cycles. Another approach would be let this throw, but this one is a little more forgiving which can be desireable with files dynamically loaded (downloaded even) at runtime.
SMIBool
A boolean StateMachine input instance. Use the value property to change the input which will automatically re-activate the StateMachineController if necessary.
SMIInput<T>
SMI = StateMachineInstance [...]
SMINumber
A numeric StateMachine input instance. Use the value property to change the input which will automatically re-activate the StateMachineController if necessary.
SMITrigger
A trigger StateMachine input instance. Use the fire method to change the input which will automatically re-activate the StateMachineController if necessary.
SolidColor
A solid color painter for a shape. Works for both Fill and Stroke.
SolidColorBase
StateMachine
StateMachineBase
StateMachineController
An AnimationController which controls a StateMachine and provides access to the inputs of the StateMachine.
Stroke
A stroke Shape painter.
StrokeBase

Extensions

ArtboardAdditions
Artboard extensions

Constants

riveVersion → const RuntimeVersion
const RuntimeVersion(7, 0)

Enums

Loop
Loop options for linear animations.
SMIType
StateMachines supports three input types. The StateMachine mostly abstracts types by allowing the programmer to query for an input of a specific Dart backing type, mapping it to the correct StateMachine type. This is the most flexible API to use to check if a type with a given name exists. However, if you need to iterate inputs and query their types, this enum is exposed for convenience.