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Is it possible to use Compose without an AppCompatActivity, and just `android.app.Activity`?

I see that it requires a `ViewTreeLifecycleOwner`, which can be instantiated and set manually. However the `ViewTreeSavedStateRegistryOwner` cannot be instantiated, so it must be used with an AppCompatActivity, right?

Is there any way for me to get a `ViewTreeSavedStateRegistryOwner`  without AppCompatActivity or get Compose (specifically `ComposeView`, which checks for these) to work?

You want to use `androidx.activity.ComponentActivity`

Yeah true, but is there a way to do it without it

Why don't you want to use ComponentActivity ?

The scenario I want to use it for just 100% requires an Android Activity

&gt; However the `ViewTreeSavedStateRegistryOwner` cannot be instantiated, so it must be used with an AppCompatActivity, right?
`AppCompatActivity` comes from a library. Anything that a library author can write, we can write.

We have examples of using Compose in an `InputMethodService` (<https://stackoverflow.com/a/65760080/115145>) and from a service showing a system overlay (<https://gist.github.com/handstandsam/6ecff2f39da72c0b38c07aa80bbb5a2f>). AFAIK, both copied code out of `ComponentActivity` and adjusted it to suit their needs.

From what people have said in other similar thread if you're doing a pure compose app you can just use ComponentActivity, no need for AppCompat

Thanks, I was missing that how the SavedStateRegistryController is instantiated and used. I thought it would need an instance that already has implemented the `getSavedStateRegistry()` . I will try it

I cannot use anything else then `android.app.Activity`. It is a pretty special use case, i know. And don't try to convince me that I'm doing it wrong, I know that and there is no other way lol