I am using a `BottomSheetDialogFragment` and it’s layout has a `ComposeView` in it. When trying to s...

# compose

[dewildte]

I am using a BottomSheetDialogFragment and it’s layout has a ComposeView in it. When trying to show the sheet I get this:
java.lang.IllegalStateException: ViewTreeLifecycleOwner not found
after the framework calls:
androidx.compose.ui.platform.WindowRecomposer_androidKt.createLifecycleAwareViewTreeRecomposer(WindowRecomposer.android.kt:244)
Anybody run into this before?

[Adam Powell]

Make sure you're using the latest versions of the fragment and androidx.activity libraries

[Adam Powell]

(at least latest stable; betas/alphas are up to you)

[Ian Lake]

FWIW, it was Fragment 1.3.1 that set the appropriate ViewTree owners for dialogs: https://developer.android.com/jetpack/androidx/releases/fragment#1.3.1

[dewildte]

Ok, thanks, I am adding `

implementation "androidx.fragment:fragment-ktx:1.4.0"

and see what happens.

[dewildte]

Yeah that works!

[dewildte]

@Ian Lake Any idea how to get a smooth opening animation?
Like a slide up from the bottom?

[Ian Lake]

I'd file a bug against Material Design Components (https://github.com/material-components/material-components-android) if you aren't seeing a smooth opening animation as they are the owners for BottomSheetDialogFragment

[Adam Powell]

also make sure you're doing any performance analysis on a release build run through r8

[dewildte]

Will do, thanks so much guys!
I am very grateful.