litho-widget/com.facebook.litho.widget/ComponentTreeHolder

ComponentTreeHolder

@ThreadSafe

open class ComponentTreeHolder

A class used to store the data backing a RecyclerBinder. For each item the ComponentTreeHolder keeps the RenderInfo which contains the original Component and either the ComponentTree or the TreeState depending upon whether the item is within the current working range or not.

Types

open class Builder

annotation class RenderState

Properties

ACQUIRE_STATE_HANDLER_ON_RELEASE

val ACQUIRE_STATE_HANDLER_ON_RELEASE: String = "acquire_state_handler"

PREVENT_RELEASE_TAG

val PREVENT_RELEASE_TAG: String = "prevent_release"

Functions

acquireStateAndReleaseTree

@VisibleForTesting

open fun acquireStateAndReleaseTree(acquireTreeStateOnRelease: Boolean)

addMeasureListener

open fun addMeasureListener(@Nullable measureListener: ComponentTree.MeasureListener)

clearMeasureListener

open fun clearMeasureListener(@Nullable measureListener: ComponentTree.MeasureListener)

computeLayoutAsync

open fun computeLayoutAsync(context: ComponentContext, widthSpec: Int, heightSpec: Int)

open fun computeLayoutAsync(context: ComponentContext, widthSpec: Int, heightSpec: Int, @Nullable measureListener: ComponentTree.MeasureListener)

computeLayoutSync

open fun computeLayoutSync(context: ComponentContext, widthSpec: Int, heightSpec: Int, @Nullable size: Size)

open fun create(configuration: ComponentsConfiguration): ComponentTreeHolder.Builder

getComponentTree

open fun getComponentTree(): ComponentTree

open fun getRenderInfo(): RenderInfo

hasCompletedLatestLayout

open fun hasCompletedLatestLayout(): Boolean

open fun isInserted(): Boolean

open fun isTreeValid(): Boolean

isTreeValidForSizeSpecs

open fun isTreeValidForSizeSpecs(widthSpec: Int, heightSpec: Int): Boolean

open fun releaseTree()

releaseTreeImmediatelyOrOnViewDetached

open fun releaseTreeImmediatelyOrOnViewDetached()

We may need to wait until the corresponding view is detached before releasing the tree as the view might need to run an animation

open fun setInserted(inserted: Boolean)

Set whether this ComponentTreeHolder has been inserted into the adapter.

open fun setRenderInfo(renderInfo: RenderInfo)

updateLayoutHandler

open fun updateLayoutHandler(@Nullable layoutHandler: RunnableHandler)