删除 InteractionState 后，在 Jetpack Compose Beta 1 中按下 state

Question

Until compose-beta01 it was very easy to hoist the pressed state in Jetpack Compose using InteractionState :

@Composable
fun App() {
    val interactionState = remember { InteractionState() }
    val pressed = interactionState.contains(Interaction.Pressed)

    MyComposable(Modifier.clickable(interactionState = interactionState) { })
}

InteractionState was removed in beta01 and there is now obvious way to replicate this behaviour. How can I hoist the pressed state using the clickable modifier?

Answer 1

Have you tried applying what's explained in the release notes of Compose beta01 ?

InteractionState has been replaced with [Mutable]InteractionSource

• Interfaces are responsible for emitting / collecting Interaction events.
• Instead of passing interactionState = remember { InteractionState() } to components such as Button and Modifier.clickable() , use interactionSource = remember { MutableInteractionSource() } .
• Instead of: Interaction.Pressed in interactionState you should instead use the extension functions on InteractionSource, such as InteractionSource.collectIsPressedAsState().
• For complex use cases you can use InteractionSource.interactions to observe the stream of Interactions. See the InteractionSource documentation and samples for more information.
• ( I85965 , b/152525426 , b/171913923 , b/171710801 , b/174852378 )

So, in your example, I would try something like:

val interactionSource = remember { MutableInteractionSource() }
val pressedState = interactionSource.collectIsPressedAsState()

MyComposable(
    Modifier.clickable(
        interactionSource = interactionSource,
        indication = LocalIndication.current
    ) {}
)