ObserverModifierNode

Artifact: androidx.compose.ui:ui

View Source

Added in 1.5.0

Common/AllAndroid/JVM

• Cmn

  interface ObserverModifierNode : DelegatableNode

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Modifier.Nodes that implement ObserverNode can provide their own implementation of onObservedReadsChanged that will be called in response to changes to snapshot objects read within an observeReads block.

Summary

Public functions
Unit	onObservedReadsChanged() This callback is called when any values that are read within the observeReads block change.	Cmn

Inherited functions
From androidx.compose.ui.node.DelegatableNode open Unit onDensityChange() Invoked when the density changes for this node. Cmn open Unit onLayoutDirectionChange() Invoked when the layout direction changes for this node. Cmn

Inherited properties
From androidx.compose.ui.node.DelegatableNode Modifier.Node node A reference of the Modifier.Node that holds this node's position in the node hierarchy. Cmn

Public functions

onObservedReadsChanged

Cmn

Added in 1.5.0

fun onObservedReadsChanged(): Unit

This callback is called when any values that are read within the observeReads block change. It is called after the snapshot is committed. onObservedReadsChanged is called on the UI thread, and only called once in response to snapshot observation. To continue observing further updates, you need to call observeReads again.