com.facebook.litho.dataflow

Class TimingNode

java.lang.Object

com.facebook.litho.dataflow.ValueNode

com.facebook.litho.dataflow.TimingNode

All Implemented Interfaces:

NodeCanFinish

public class TimingNode
extends ValueNode
implements NodeCanFinish

A ValueNode that will linearly update its value from 0 to 1.0 over the course of the given duration.

Field Summary

Fields inherited from class com.facebook.litho.dataflow.ValueNode

DEFAULT_INPUT

Constructor Summary

Constructors

Constructor and Description
TimingNode(int durationMs)

Method Summary

Modifier and Type	Method and Description
float	calculateValue(long frameTimeNanos) This node should calculate and set a new value based on frame time and its parents (the nodes it depends on).
boolean	isFinished() Called by framework code to determine whether a node is finished.

Methods inherited from class com.facebook.litho.dataflow.ValueNode

getInput, getInput, getValue, hasInput, hasInput, setValue

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TimingNode

public TimingNode(int durationMs)

Method Detail

calculateValue

public float calculateValue(long frameTimeNanos)

Description copied from class: ValueNode

This node should calculate and set a new value based on frame time and its parents (the nodes it depends on). When this is called, it's guaranteed that the parent nodes have already been updated for this frame.

Specified by:

calculateValue in class ValueNode

isFinished

public boolean isFinished()

Description copied from interface: NodeCanFinish

Called by framework code to determine whether a node is finished. This will only be called on this node when all of its inputs are finished.

Specified by:

isFinished in interface NodeCanFinish

Returns:

whether this node is finished given that its inputs are finished.