A modern programming language that makes developers happier.

kotlinlang

Good Morning "Composers" :wink:
can anyone assist with my question currently open on SO?
<https://stackoverflow.com/questions/74372019/how-to-employ-backdropscaffoldstate-offset-correctly-to-offset-front-contentlaye>

I somehow don't have access to BackdropScafold

but in your code in stackoverflow you are using
```Scaffold(
    topBar = { Spacer(modifier = Modifier.height(0.dp)) },
    modifier = Modifier.fillMaxSize(),
) { paddingValues -&gt;```


not <https://cs.android.com/androidx/platform/frameworks/support/+/androidx-main:compose/material/material/src/commonMain/kotlin/androidx/compose/material/BackdropScaffold.kt|https://cs.android.com/androidx/platform/frameworks/support/+/androidx-main:compose/[…]mmonMain/kotlin/androidx/compose/material/BackdropScaffold.kt>

<@U01Q3AL66TS> thanks for taking the time to look at this
yes, that `scaffold` is the content for my `frontLayerContent` of my `BackdropScaffold` as shown here..

```
BackdropScaffold(
    scaffoldState = scaffoldState,
    gesturesEnabled = false,
    appBar = myAppBar,
    frontLayerBackgroundColor = MaterialTheme.colorScheme.surface,
    backLayerBackgroundColor = MaterialTheme.colorScheme.inverseOnSurface,
    backLayerContentColor = MaterialTheme.colorScheme.onSecondary,
    backLayerContent = {
        BackdropLayerContent(
            windowSize = windowSize,
            devicePosture = devicePosture,
            practiceUpdateNavigation = practiceUpdateNavigation
        )
    },
    frontLayerContent = { frontLayerContent() },
    frontLayerScrimColor = Color.Unspecified,
    peekHeight = peekHeight
) {```

to control the sate i guess you need to use the scafold state but are you sharing the state btw both ?

there is this article about that <https://compose.academy/blog/building_a_user_interface_with_the_backdrop_scaffold>

i dont think that article is advanced enough for my issue

```var offset by (backdropState.offset as MutableState)```
im sure the "proper" solution will involve the `backdropState.offset`,
and i will include using the modifier `offset`

```modifier = Modifier
            .fillMaxSize()
            .offset { IntOffset(x = 0, y = -offset.toInt()) },```


i think my only issue is calculating the amount (and type) of offest to employ

```Modifier
            .offset { IntOffset(x = 0, y = -offset.toInt()) }
             .fillMaxSize()```


the calculation I would need to apply this and try to understand what you trying to achieve

the issue i have is that when the backdrop is open and i have many items in the frontcontent list
i cannot scroll down far enough to make the last item in the list 100% visible

and is that related to the backdrop or to the LazyColumn you using ? did you try the same content on other scafold and see if you can see all the content ?

my app has multiple screens that are hosted in the backdrops frontcontentlayer
and all these "frontlayer" lists have exactly the same issue
i cannot scroll down far enough to see the last item in each list

my solution is "close" however i have made an error in my code as the offset of my list is constant
and doesnt react to me opening the backdrop