ReactAndroid/com.facebook.react.uimanager/UIImplementation

UIImplementation

A class that is used to receive React commands from JS and translate them into a shadow node hierarchy that is then mapped to a native view hierarchy.

Types

LayoutUpdateListener

interface LayoutUpdateListener

Interface definition for a callback to be invoked when the layout has been updated

Functions

addUIBlock

open fun addUIBlock(block: UIBlock)

clearJSResponder

open fun clearJSResponder()

configureNextLayoutAnimation

open fun configureNextLayoutAnimation(config: ReadableMap, success: Callback)

Configure an animation to be used for the native layout changes, and native views creation.

createView

open fun createView(tag: Int, className: String, rootViewTag: Int, props: ReadableMap)

Invoked by React to create a new node with a given tag, class name and properties.

dispatchViewManagerCommand

open fun ~~dispatchViewManagerCommand~~(reactTag: Int, commandId: Int, @Nullable commandArgs: ReadableArray)

open fun dispatchViewManagerCommand(reactTag: Int, commandId: String, @Nullable commandArgs: ReadableArray)

dispatchViewUpdates

open fun dispatchViewUpdates(batchId: Int)

Invoked at the end of the transaction to commit any updates to the node hierarchy.

findSubviewIn

open fun findSubviewIn(reactTag: Int, targetX: Float, targetY: Float, callback: Callback)

Find the touch target child native view in the supplied root view hierarchy, given a react target location.

getProfiledBatchPerfCounters

open fun getProfiledBatchPerfCounters(): Map<String, Long>

getRootViewNum

open fun getRootViewNum(): Int

Return root view num

manageChildren

open fun manageChildren(viewTag: Int, @Nullable moveFrom: ReadableArray, @Nullable moveTo: ReadableArray, @Nullable addChildTags: ReadableArray, @Nullable addAtIndices: ReadableArray, @Nullable removeFrom: ReadableArray)

Invoked when there is a mutation in a node tree.

measure

open fun measure(reactTag: Int, callback: Callback)

Determines the location on screen, width, and height of the given view relative to the root view and returns the values via an async callback.

measureInWindow

open fun measureInWindow(reactTag: Int, callback: Callback)

Determines the location on screen, width, and height of the given view relative to the device screen and returns the values via an async callback.

measureLayout

open fun measureLayout(tag: Int, ancestorTag: Int, errorCallback: Callback, successCallback: Callback)

Measures the view specified by tag relative to the given ancestorTag.

measureLayoutRelativeToParent

open fun measureLayoutRelativeToParent(tag: Int, errorCallback: Callback, successCallback: Callback)

Like measure and measureLayout but measures relative to the immediate parent.

onCatalystInstanceDestroyed

open fun onCatalystInstanceDestroyed()

onHostDestroy

open fun onHostDestroy()

onHostPause

open fun onHostPause()

onHostResume

open fun onHostResume()

prependUIBlock

open fun prependUIBlock(block: UIBlock)

profileNextBatch

open fun profileNextBatch()

registerRootView

open fun <T : View?> registerRootView(rootView: T, tag: Int, context: ThemedReactContext)

Registers a root node with a given tag, size and ThemedReactContext and adds it to a node registry.

removeLayoutUpdateListener

open fun removeLayoutUpdateListener()

removeRootShadowNode

open fun removeRootShadowNode(rootViewTag: Int)

Unregisters a root node with a given tag from the shadow node registry

removeRootView

open fun removeRootView(rootViewTag: Int)

Unregisters a root node with a given tag.

replaceExistingNonRootView

open fun replaceExistingNonRootView(oldTag: Int, newTag: Int)

Replaces the View specified by oldTag with the View specified by newTag within oldTag's parent.

resolveRootTagFromReactTag

open fun resolveRootTagFromReactTag(reactTag: Int): Int

resolveShadowNode

fun resolveShadowNode(reactTag: Int): ReactShadowNode

sendAccessibilityEvent

open fun sendAccessibilityEvent(tag: Int, eventType: Int)

setChildren

open fun setChildren(viewTag: Int, childrenTags: ReadableArray)

An optimized version of manageChildren that is used for initial setting of child views.

setJSResponder

open fun setJSResponder(reactTag: Int, blockNativeResponder: Boolean)

setLayoutAnimationEnabledExperimental

open fun setLayoutAnimationEnabledExperimental(enabled: Boolean)

LayoutAnimation API on Android is currently experimental.

setLayoutUpdateListener

open fun setLayoutUpdateListener(listener: UIImplementation.LayoutUpdateListener)

setViewHierarchyUpdateDebugListener

open fun setViewHierarchyUpdateDebugListener(@Nullable listener: NotThreadSafeViewHierarchyUpdateDebugListener)

setViewLocalData

open fun setViewLocalData(tag: Int, data: Any)

synchronouslyUpdateViewOnUIThread

open fun synchronouslyUpdateViewOnUIThread(tag: Int, props: ReactStylesDiffMap)

Used by native animated module to bypass the process of updating the values through the shadow view hierarchy.

updateInsetsPadding

open fun updateInsetsPadding(nodeViewTag: Int, top: Int, left: Int, bottom: Int, right: Int)

updateNodeSize

open fun updateNodeSize(nodeViewTag: Int, newWidth: Int, newHeight: Int)

Invoked when native view that corresponds to a root node, or acts as a root view (ie.

updateRootView

open fun updateRootView(rootCSSNode: ReactShadowNode, widthMeasureSpec: Int, heightMeasureSpec: Int)

open fun updateRootView(tag: Int, widthMeasureSpec: Int, heightMeasureSpec: Int)

Updates the styles of the ReactShadowNode based on the Measure specs received by parameters.

updateView

open fun updateView(tag: Int, className: String, props: ReadableMap)

Invoked by React to create a new node with a given tag has its properties changed.

viewIsDescendantOf

open fun ~~viewIsDescendantOf~~(reactTag: Int, ancestorReactTag: Int, callback: Callback)

Check if the first shadow node is the descendant of the second shadow node