litho-core/com.facebook.litho.config/PreAllocationHandler

PreAllocationHandler

sealed interface PreAllocationHandler

This interface defines how ComponentTree should handle pre-allocation specs. It triggers an extra-step post layout, which verifies what mount content is associated with the calculated LayoutState and pushes it into the corresponding MountItemPool if it can.

Inheritors

Types

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class Custom(val handler: RunnableHandler) : PreAllocationHandler

Litho will run the pre-allocation in the Handler that is explicitly given.

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object LayoutThread : PreAllocationHandler

Litho will run the default pre-allocation in the same Thread that is used to run the Render pipeline, which is a background Thread.