Is there something like ScrollView `fillViewPort` ...

# compose

[Michal Klimczak]

Is there something like ScrollView fillViewPort but for LazyColumn (or Column)?
The point is to do something like this.

[Andrey Kulikov]

you can create your own Arrangement.Vertical which puts the latest item to the bottom and pass it as verticalArrangement param

[Michal Klimczak]

Wow, sounds great (kinda amazing how flexible compose is). Will try that, thanks

[nglauber]

@Andrey Kulikov could you help me how to do this?
In my case I want to achieve this UI using a Column

[Andrey Kulikov]

Column(verticalArrangement = remember {
    object : Arrangement.Vertical {
        override fun Density.arrange(
            totalSize: Int,
            sizes: IntArray,
            outPositions: IntArray
        ) {
            var currentOffset = 0
            sizes.forEachIndexed { index, size -> 
                if (index == sizes.lastIndex) {
                    outPositions[index] = totalSize - size
                } else {
                    outPositions[index] = currentOffset
                    currentOffset += size
                }
            }
        }
    }
})

something like this

[nglauber]

thanks… but didn’t work if I use verticalScroll 😞

[nglauber]

Sharing the answer for future references.
https://stackoverflow.com/questions/67929861/fillviewport-behavior-in-jetpack-compose-column