Has anyone had any luck embedding compose in a Flutter application? Trying to sneak in a cheeky bit ...

# compose

[czuckie]

Has anyone had any luck embedding compose in a Flutter application? Trying to sneak in a cheeky bit in an AlertDialog via a ComposeView() but getting: java.lang.IllegalStateException: ViewTreeLifecycleOwner not found from androidx.appcompat.widget.AlertDialogLayout

[czuckie]

I did end up creating my own FlutterActivityAppCompat just incase it was some AppCompatActivity stuff that needed to be going but that didn't seem to help 😞

[Ian Lake]

Keep in mind that the dialog's view is in a totally separate window from the activity's view hierarchy, so nothing in the activity level is going to help - the dialog's view needs to have a LifecycleOwner set

[andrew]

I hope this is to join the compose side fully 😏

[czuckie]

@Ian Lake I did not keep that in mind. How does a dialog typically get its lifecycle owner set then? For now I've thrown in the towel. FWIW: I really would like this to be compose, having done compose for a good while now, going to Flutter is like going from Kotlin to Java. Like I can see the structural similarities, but crikey, so much typing!

[Ian Lake]

Compose's Dialog composable pulls the owners from the activity, which isn't perfect but good enough ™️ in just about every case: https://cs.android.com/androidx/platform/frameworks/support/+/androidx-main:compose/[…]lin/androidx/compose/ui/window/AndroidDialog.android.kt;l=355

[Ian Lake]

That does assume that your activity implements ComponentActivity or its subclasses, FragmentActivity or AppCompatActivity, which do have those owners set for you already

[Ian Lake]

Which means you could set each owner just by calling ViewTreeLifecycleOwner.set(yourDialogLayout, yourActivity) and yourDialogLayout.setViewTreeSavedStateRegistryOwner(yourActivity)

[czuckie]

thanks for the explanation Ian! I might just give it a go and see if I can't smuggle some compose into the app that way.