Android export Apk expansion does not works

[SnailRabbids]

Godot version

3.3.4

System information

Windows 10

Issue description

Hello all,
I try to start application that was splited to apk and obb files and it fails right before start. W/o apk expansion it works perfectly.

Salt is set as some string. (I don't know exactly what it's for)
Public key is a key I used to release the application.

Is somewhere manual for Apk Expansion? I didn't find.

Steps to reproduce

Open project -> export -> Android -> Move to Apk Expansion -> Enable checkbox -> Salt set as some string (I dont know what is it) -> public key is a key I'm using for release -> click export project button -> move apk file to your phone -> create in android/obb folder new folder with the name use used in "Package : Unique Name" -> move .obb file in this folder -> run application

Minimal reproduction project

No response

[akien-mga]

As far as I know you have to use Android App Bundle for Google Play now, so APK expansion is no longer supported. There will be support for Play Assets Delivery in Godot 3.4.

[SnailRabbids]

@akien-mga So, right now I cannot create the application large than 150mb? Because Play Assets Delivery is not supported yet and APK expansion is no longer supported?

[akien-mga]

For Godot 3.3.4, I fear that's correct.

You could try the new support for Play Assets Delivery in Godot 3.4 beta 5: https://godotengine.org/article/dev-snapshot-godot-3-4-beta-5

See #48636 (comment)
CC @m4gr3d

[SnailRabbids]

@akien-mga
I have no problem to use 3.4 beta 5, do you have some manual or docs for Play Assets Delivery or some example? How to use that?

I'll be very happy if it works :)

[m4gr3d]

@SnailRabbids While obb is no longer supported by Google play, the APK expansion logic hasn't been removed/modified yet, so it should work as it had in the past.

Unfortunately the logic was added before I start contributing so we may need someone else to provide directions on how to set it up and use it correctly.

@akien-mga Do we have contributors or users that have used APK expansion successfully?

As mentioned though, play asset delivery is another path to export especially if planning to upload to the play store.

[akien-mga]

Do we have contributors or users that have used APK expansion successfully?

It's not a very popular option AFAIK, and not well documented. I think @volzhs might have used it in the past?

According to #28214 (comment) it might require the READ_EXTERNAL_STORAGE permission, which might no longer be possible on Google Play with using scoped storage?

[SnailRabbids]

@m4gr3d @akien-mga I dont really care which of methods (apk expansion or Play Assets Delivery) I will use, I prefer Play Assets Delivery, because, as you said, Google Play Games will not support the apk+obb method, so I'll happy to use Play Assets Delivery, I just need to know "how". Give me some manual/tutorial/example/docs for that. Or it is used somewhere inside Godot and I just need to export my application as aab and thats all?

[SnailRabbids]

Works for me with Godot 3.4 beta 5. Closing the issue.

[Atem1995]

据我所知，您现在必须使用Android App Bundle进行Google Play，因此不再支持APK扩展。Godot 3.4 中将支持游戏素材资源交付。

Hello, I would like to ask how to use obb of Android in 4.0 beta export, and how to check the application permissions.