Folks, is it possible to take an action on hovered...

# compose-desktop

[geepawhill]

Folks, is it possible to take an action on hovered state changes, comparable to the way clickable { onClick() } works? I have two composables. I want one of them to "notice" when the other one is hovered. Had I something like clickable I could do this by calling a method on the model. I tried using pointerInputs for exit and enter, but they behave very strangely, sending exit/enter pairs for each mouse move within the bounds, and never sending an exit when leaving the bounds.

[Zach Klippenstein (he/him) [MOD]]

easiest way would probably be to collect the interactions emitted from the MutableInteractionSource yourself, or observe state changes on the state returned by MutableInteractionSource.collectHoveredAsState

[Zach Klippenstein (he/him) [MOD]]

e.g.

@Composable fun YourComposable() {
  val interactionSource1 = remember { MutableInteractionSource() }
  val interactionSource2 = remember { MutableInteractionSource() }
  val hovered1 by interactionSource1.collectIsHoveredAsState()

  LaunchedEffect(Unit) {
    snapshotFlow { hovered1 }.collect {
      // TODO: Perform action when interactionSource1 changes hovered state
    }
  } // etc for 2

  YourHoverable(interactionSource = interactionSource1)
  YourHoverable(interactionSource = interactionSource2)
}

You could collect interactions yourself but it's a little more work since you have to save Enter interactions to match them with Exit yourself, which collectIsHoveredAsState does for you.