Hello! :wave: I updated to compose 1.3.1 from 1.0.5 and suddenly my very basic signature component s...

# compose

[Marco Pierucci]

Hello! 👋
I updated to compose 1.3.1 from 1.0.5 and suddenly my very basic signature component stopped working. It has to do with with

pointerInteropFilter

But not sure why, maybe someone has a few pointers. 🧵

[Marco Pierucci]

Snippet:

@ExperimentalComposeUiApi
@Composable
fun DrawingCanvas(
    paths: MutableList<Path>
) {
    val currentPath = paths.last()
    val movePath = remember { mutableStateOf<Offset?>(null) }

    Canvas(
        modifier = Modifier
            .fillMaxSize()
            .clipToBounds()
            .pointerInteropFilter { event ->
                when (event.action) {
                    MotionEvent.ACTION_DOWN -> {
                        currentPath.moveTo(event.x, event.y)
                    }
                    MotionEvent.ACTION_MOVE -> {
                        movePath.value = Offset(event.x, event.y)
                    }
                    else -> {
                        movePath.value = null
                    }
                }
                true
            }
    ) {
        movePath.value?.let { offset ->
            currentPath.lineTo(offset.x, offset.y)
            drawPath(
                path = currentPath,
                color = Color.Black,
                style = Stroke(5f)
            )
        }
        paths.forEach {
            drawPath(
                path = it,
                color = Color.Black,
                style = Stroke(5f)
            )
        }
    }
}

[Marco Pierucci]

signature_working.movnot_working.mov

[Marco Pierucci]

Update:
It seems that passing and calling requestDisallowInterceptTouchEvent fixes it:

Canvas(
        modifier = Modifier
            .fillMaxSize()
            .clipToBounds()
            .pointerInteropFilter(
                requestDisallowInterceptTouchEvent = onDisallowIntercept
            ) { event ->
                onDisallowIntercept(true)

                when (event.action) {
                    MotionEvent.ACTION_DOWN -> {
                        currentPath.moveTo(event.x, event.y)
                    }
                    MotionEvent.ACTION_MOVE -> {
                        movePath.value = Offset(event.x, event.y)
                    }
                    else -> {
                        movePath.value = null
                    }
                }
                true
            }
    )