Recomposer

Kotlin |Java

abstract class Recomposer

kotlin.Any
↳	androidx.compose.Recomposer

Summary

Public constructors
<init>()

Public methods
abstract Unit	recomposeSync() Used to recompose changes from scheduleChangesDispatch immediately without waiting.

Protected methods
Unit	dispatchRecomposes()
abstract Unit	scheduleChangesDispatch()

Companion functions
Recomposer	current() Retrieves Recomposer for the current thread.
Boolean	hasInvalidations() Check if any composer in this thread has invalid ranges .
Boolean	hasPendingChanges() Check if there's pending changes to be recomposed in this thread

Public constructors

<init>

Recomposer()

Public methods

recomposeSync

@TestOnly abstract fun recomposeSync(): Unit

Used to recompose changes from scheduleChangesDispatch immediately without waiting.

This is supposed to be used in tests only.

Protected methods

dispatchRecomposes

protected fun dispatchRecomposes(): Unit

scheduleChangesDispatch

protected abstract fun scheduleChangesDispatch(): Unit

Companion functions

current

@TestOnly fun current(): Recomposer

Retrieves Recomposer for the current thread. Needs to be the main thread.

hasInvalidations

@TestOnly fun hasInvalidations(): Boolean

Check if any composer in this thread has invalid ranges . This is more expensive than hasPendingChanges and should only be called when hasPendingChanges returns true to validate that the pending change has work to do.

Return
true if any recomposer has invalid ranges.

See Also

• hasPendingChanges

hasPendingChanges

fun hasPendingChanges(): Boolean

Check if there's pending changes to be recomposed in this thread

Return
true if there	're pending changes in this thread, false otherwise

See Also

• hasInvalidations