I tried `ViewGroup.setContent` extension inside a `BottomSheetDialog` and it threw this exception ``...

# compose

[jitinsharma]

I tried ViewGroup.setContent extension inside a BottomSheetDialog and it threw this exception

java.lang.IllegalStateException: Composed into the View which doesn't propagate ViewTreeLifecycleOwner!

Is this a known issue?

[Ian Lake]

Are you using BottomSheetDialogFragment and overriding onCreateView() to create your View? Fragment, and by extension any DialogFragment, will have its LifecycleOwner set

[Ian Lake]

But for a regular Dialog, that view hierarchy is in its own window and is totally uncoupled from the Activity's.

[jitinsharma]

I'm doing this with BottomSheetDialog

private val dialog = BottomSheetDialog(context)
val layout = LayoutInflater.from(context).inflate(R.layout.filter_bottom_sheet_dialog_view, null)
dialog.setContentView(layout)
layout.findViewById<CardView>(R.id.v_card).setContent(Recomposer.current()) {
    FiltersScreen(filterState = filterState)
}

[Ian Lake]

Well, besides making that forcing you to manually clean up your Dialog when the Activity does away (otherwise you'll leak your window token - this I'd something fragments does for you), then yeah, you'll need to hook up the ViewTreeLifecycleOwner yourself

[Ian Lake]

That's what it's set method is for. You'll also want to hook up the other ViewTree APIs

[jitinsharma]

Thanks, will look into set methods.
BottomSheetDialogFragment looks an obvious better choice then(funny didn't think of this earlier 😅)

[louiscad]

You'll also want to hook up the other ViewTree APIs

What did you mean?

[Ian Lake]

https://cs.android.com/androidx/platform/frameworks/support/+/androidx-main:fragment[…]src/main/java/androidx/fragment/app/Fragment.java;l=3115-3117

[Vinay Gaba]

There's some inspiration here as well. Different issue but needed some of the same setup - https://www.jetpackcompose.app/snippets/AbstractComposeviewPreviewHelper