KeyInputModifierNode

Implement this interface to create a Modifier.Node that can intercept hardware Key events.

The event is routed to the focused item. Before reaching the focused item, onPreKeyEvent is called for parents of the focused item. If the parents don't consume the event, onPreKeyEvent is called for the focused item. If the event is still not consumed, onKeyEvent is called on the focused item's parents.

Summary

Public functions
Boolean

This function is called when a KeyEvent is received by this node during the upward pass.
Cmn
Boolean

This function is called when a KeyEvent is received by this node during the downward pass.
Cmn

Inherited functions
From androidx.compose.ui.node.DelegatableNode
open Unit

Invoked when the density changes for this node.
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open Unit

Invoked when the layout direction changes for this node.
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Inherited properties
From androidx.compose.ui.node.DelegatableNode
Modifier.Node

A reference of the Modifier.Node that holds this node's position in the node hierarchy.
Cmn

Public functions

onKeyEvent

Cmn 
fun onKeyEvent(event: KeyEvent): Boolean

This function is called when a KeyEvent is received by this node during the upward pass. While implementing this callback, return true to stop propagation of this event. If you return false, the key event will be sent to this KeyInputModifierNode's parent.

onPreKeyEvent

Cmn 
fun onPreKeyEvent(event: KeyEvent): Boolean

This function is called when a KeyEvent is received by this node during the downward pass. It gives ancestors of a focused component the chance to intercept an event. Return true to stop propagation of this event. If you return false, the event will be sent to this KeyInputModifierNode's child. If none of the children consume the event, it will be sent back up to the root using the onKeyEvent function.