Interface
OffScreenComp
:The offscreen component.
group Component Types
offscreenDistance
: number | undefinedThe minimum distance that the object must be off the screen by to be considered "offscreen". If it is undefined, it means that the object will be considered to be offscreen when its bounding rectangle (defined by width and height) is not intersecting with the screen rectangle.
isOffScreen
(): booleanIf object is currently out of view.
onExitScreen
(action: () => void): KEventControllerRegister an event that runs when object goes out of view.
onEnterScreen
(action: () => void): KEventControllerRegister an event that runs when object enters view.
Guides 
API Reference 
Blog