# Flutter之animation庫 ``` CLASSES AlwaysStoppedAnimation Animatable Animation AnimationController AnimationMax AnimationMean AnimationMin ColorTween CompoundAnimation ConstantTween Cubic Curve CurvedAnimation Curves CurveTween ElasticInCurve ElasticInOutCurve ElasticOutCurve FlippedCurve Interval IntTween ProxyAnimation RectTween ReverseAnimation ReverseTween SawTooth SizeTween StepTween Threshold TickerFuture TrainHoppingAnimation Tween TweenSequence TweenSequenceItem MIXINS AnimationEagerListenerMixin AnimationLazyListenerMixin AnimationLocalListenersMixin AnimationLocalStatusListenersMixin AnimationWithParentMixin CONSTANTS kAlwaysCompleteAnimation kAlwaysDismissedAnimation ENUMS AnimationBehavior AnimationStatus TYPEDEFS AnimationStatusListener EXCEPTIONS TickerCanceled ```