Summary: Methods | Inherited Methods

MotionHelperInterface

public interface MotionHelperInterface
implements Animatable, MotionLayout.TransitionListener

androidx.constraintlayout.motion.widget.MotionHelperInterface

Known indirect subclasses

Carousel	Carousel works within a MotionLayout to provide a simple recycler like pattern.
MotionEffect	MotionHelper that automatically inserts keyframes for views moving in a given direction, out of: NORTH SOUTH EAST WEST By default, will pick the opposite of the dominant direction (e.g.

Summary

Public methods
`abstract boolean`	`isDecorator()`
`abstract boolean`	`isUseOnHide()`
`abstract boolean`	`isUsedOnShow()`
`abstract void`	`onFinishedMotionScene(MotionLayout motionLayout)` This is called after motionLayout read motionScene and assembles all constraintSets
`abstract void`	`onPostDraw(Canvas canvas)`
`abstract void`	`onPreDraw(Canvas canvas)`
`abstract void`	`onPreSetup(MotionLayout motionLayout, HashMap<View, MotionController> controllerMap)` Called after motionController is populated with start and end and keyframes.

From interface


        
          androidx.constraintlayout.motion.widget.Animatable

`abstract float`	`getProgress()`
`abstract void`	`setProgress(float progress)`

From interface


        
          androidx.constraintlayout.motion.widget.MotionLayout.TransitionListener

`abstract void`	`onTransitionChange(MotionLayout motionLayout, int startId, int endId, float progress)` Called when a drawer's position changes.
`abstract void`	`onTransitionCompleted(MotionLayout motionLayout, int currentId)` Called when a drawer has settled completely a state.
`abstract void`	`onTransitionStarted(MotionLayout motionLayout, int startId, int endId)` Called when a drawer is about to start a transition.
`abstract void`	`onTransitionTrigger(MotionLayout motionLayout, int triggerId, boolean positive, float progress)` Call when a trigger is fired

public abstract boolean isDecorator ()

Returns
`boolean`

public abstract boolean isUseOnHide ()

Returns
`boolean`

public abstract boolean isUsedOnShow ()

Returns
`boolean`

public abstract void onFinishedMotionScene (MotionLayout motionLayout)

This is called after motionLayout read motionScene and assembles all constraintSets

public abstract void onPostDraw (Canvas canvas)

Parameters
`canvas`	`Canvas`

public abstract void onPreDraw (Canvas canvas)

Parameters
`canvas`	`Canvas`

public abstract void onPreSetup (MotionLayout motionLayout, 
                HashMap<View, MotionController> controllerMap)

Called after motionController is populated with start and end and keyframes.