CursorVisible

cursorVisible.kt

@Composable
fun CursorVisible(content: @Composable () -> Unit) {
    val boxSize = 100.dp
    val boxPx = with(LocalDensity.current) { boxSize.toPx() }
    var offset by remember { mutableStateOf(Offset(0f, 0f)) }
    var visible by remember { mutableStateOf(false) }
    Box(modifier = Modifier
        .fillMaxSize()
        .pointerInput(Unit) {
            detectTapGestures {
                offset = it - Offset(boxPx/2, boxPx/2)
                visible = !visible
            }
        }
    ) {
        if (visible) {
            Box(
                Modifier
                    .offset { offset.round() }
                    .size(boxSize)
                    .pointerInput(Unit) {
                        detectDragGestures { change, dragAmount ->
                            change.consumeAllChanges()
                            offset += dragAmount
                        }
                    }
            ) {
                content()
            }
        }
    }
}