How to pack godot game(s) into a native android/ios app and start it?

[CloudTsang]

I need to add a game to my app(used for some math learning) to make it funnier for kids so I start to learn godot.
But firstly I must figure out how to export a godot game as not a single app but a part of my app like a plugin and can be started by pressing a button in my native android/ios app.
Since the exported-pck file contents all data of a godot game , and I see the export template of IOS and Html seems to be some file to call the pck file(?) , is it possible to do this with our own java/objc code?

Sorry for my poor English and hope for your responses!

[CloudTsang]

No response after a week.T_T
Was my issue not clear enough or being wrong somewhere?

[vnen]

AFAIK nobody ever tried this. If no one answered is likely that no one knows. Godot wasn't made to be embedded in other apps, so while it may be possible, you won't get much help here unless it's a more specific issue.

[CloudTsang]

I'm trying to use "Custom Packge" to set my own packaged apk as export template.

So far, it is successful to export a apk but fail to start the Godot activity and throw an exception of invalid reference in call to “GetLongField”（called from GodotLib.initiaize()?）. Maybe somthing wrong in manifest or build.gradle configuration .

[CloudTsang]

emmm...
This way(Custom Packge) works.
I can boot godot game from my app ....................... only once.
I change the code in Godot.java and GodotView.java about back button so that when I press back button in godot game , it will just finish the activity not quit the whole app.

But it seems not enough to quit the godot part safely just simply adding some "this.finish()".
When i next boot godo game from my app , it throws these err:

E/godot (16992): ERROR: Condition ' configured ' is true.
E/godot (16992): At: core\string_db.cpp:55:setup() - Condition ' configured ' is true.
E/godot (16992): ERROR: Condition ' singleton ' is true. returned: __null
E/godot (16992): At: core\io\ip.cpp:270:create() - Condition ' singleton ' is true. returned: __null
E/godot (16992): ERROR: Condition ' singleton ' is true.
E/godot (16992): At: core\input_map.cpp:289:InputMap() - Condition ' singleton ' is true.
E/godot (16992): ERROR: Condition ' singleton != __null ' is true.
E/godot (16992): At: core\message_queue.cpp:339:MessageQueue() - Condition ' singleton != __null ' is true.
I/godot (16992): *****SETUP OK
I/godot (16992): ANDROID MODULES: Nothing to load, aborting

Maybe some properties should be initialized or some method should be call and I haven't figured it out so far.Hoping for help==.

[akien-mga]

This is out of the scope of this issue tracker as it's not something that should be implemented in Godot itself. Exported Godot games are apps that can be run normally - whether a native iOS or Android app can trigger launching another app is not really related to Godot (and it's likely possible, but better to ask on iOS or Android forums).

[kazman1]

Is it easy to convert gdscript to react native?

[Calinou]

@kazman1 GDScript and React Native are entirely unrelated to each other. There's no way to "convert" from one to another.

Also, please ask support questions on one of the other community channels, not here 🙂

[First-AI]

I'm also looking for the same thing.

[Calinou]

@First-AI Android subview embedding will be supported in 3.2.4 (and is in 3.2.4beta3 already), see godotengine/godot-proposals#1064.

iOS subview embedding isn't implemented yet, see godotengine/godot-proposals#1473.