com.facebook.rendercore.transitions

Interface AnimatedRootHost

All Known Implementing Classes:

LithoView

public interface AnimatedRootHost

A root Host using the transition extension would need to implement this interface to be able to receive size updates when animating. The size information received in the callbacks should be used in android.view.View#onMeasure(int, int) to override the size information when animating. This needs to be different from a regular Host where we call measure and layout manually.

Method Summary

Modifier and Type	Method and Description
void	notifyVisibleBoundsChanged(Rect visibleRect, boolean processVisibilityOutputs) This allows inner RootHosts to trigger a mount on a custom visibleRect.
void	setAnimatedHeight(int height) Sets the height that the root Host should take on the next measure pass and then requests a layout.
void	setAnimatedWidth(int width) Sets the width that the root Host should take on the next measure pass and then requests a layout.

Method Detail

setAnimatedWidth

void setAnimatedWidth(int width)

Sets the width that the root Host should take on the next measure pass and then requests a layout. This should be called from animation-driving code on each frame to animate the size of the root Host.

setAnimatedHeight

void setAnimatedHeight(int height)

Sets the height that the root Host should take on the next measure pass and then requests a layout. This should be called from animation-driving code on each frame to animate the size of the root Host.

notifyVisibleBoundsChanged

void notifyVisibleBoundsChanged(Rect visibleRect,
                                boolean processVisibilityOutputs)

This allows inner RootHosts to trigger a mount on a custom visibleRect. We need this to force animated inner root hosts to be mounted for animation.