Question

I made it by following steps: Integrating Unity and Eclipse. Can I call functions (that I created with JavaScript or C# in Unity) with the Android SDK or NDK and the other way around? There are an interface between UnityPlayer and Android SDK or NDK?

Answer 1

For whom this may help:

As @Oli mentioned, you can communicate between Unity and an Android app by using this method:

UnityPlayer.UnitySendMessage("GameObjectName1", "MethodName1", "Message to send");

In order for this method to work, you must follow this guide: http://forum.unity3d.com/threads/71607-Integrating-Unity-and-Eclipse

You can also call Java methods from Unity C# file – http://docs.unity3d.com/Documentation/Manual/Plugins.html

You can use this code in order to start the Unity app after you add it as library to your Android project:

UnityPlayer mPlayer = new UnityPlayer(this); // Put your activity object here
    int glesMode = mPlayer.getSettings().getInt("gles_mode", 1);
    boolean trueColor8888 = false;
    mPlayer.init(glesMode, trueColor8888);

Hope this helps anyone… I’ve researched a lot until I found this information.