Is there a Godot equivalent to Unity's AndroidJavaObject?

[kralvarado]

Godot Version

4.2

Question

I’m migrating from Unity over to Godot. I’m making an Godot-Android plugin to use custom Android services. I’m trying to avoid writing a single class with 500 methods to access all the Android features I need to interact with. It would be ideal to pass a reference to Godot Engine of a Java class and use that reference to call from Godot scripts into Android.

The idea is to organize the methods by class, and have a Godot script that interfaces with the java class. So graphic calls can go to the graphics java object reference, and game-state calls can go to the game-state java object.

Within Unity this can be done by getting a reference to an AndroidJavaObject. That reference then gives access to the Java methods of that class.

Within Godot, making an AndroidPlugin will provide a singleton that gives access to methods defined in the class that extends GodotPlugin with the @UsedByGodot tag. I’m hoping that I could define, getGraphicsClass() in Java that returns a reference to MyGraphics, that within Godot Scripts, I can call into that reference outside of the GodotPlugin singleton.

Again, this is to help organize all the method calls I want.

[pennyloafers]

JNISingleton

[kralvarado]

I found the answer to my question. It is possible to define multiple plugin-ins within the same Android aar. Within the manifest, you can add a meta-data tags for each plugin.

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android">

	<application>
		<meta-data
			android:name="org.godotengine.plugin.v2.PluginOne"
			android:value="com.pixelcube.godot.plugin.PluginOne"
			/>
		<meta-data
			android:name="org.godotengine.plugin.v2.PluginTwo"
			android:value="com.pixelcube.godot.plugin.PluginTwo"
			/>
	</application>
</manifest>

Then for each tag, have a Java class to extend GodotPlugin. Within GodotScripts, you can access each module (plugin) individually and that will help organize the method calls to related methods and Android modules.