litho-core/com.facebook.litho/RenderUnitIdGenerator

RenderUnitIdGenerator

class RenderUnitIdGenerator(val componentTreeId: Int)

Class that handles generation of unique IDs for RenderUnits for a given ComponentTree. The ID generation uses the component key to create an ID, and creates unique IDs for any components under the same ComponentTree.

Constructors

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constructor(componentTreeId: Int)

Types

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object Companion

Properties

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val componentTreeId: Int

Returns the ComponentTree ID that this ID-generator is linked with.

Functions

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fun calculateLayoutOutputId(componentKey: String, type: Int): Long

Calculates a returns a unique ID for a given component key and output type. The IDs will be unique for components in the ComponentTree this ID generator is linked with. If an ID was already generated for a given component, the same ID will be returned. Otherwise, a new unique ID will be generated