一种方法总是在您的主项目中创建一个界面，我们称它为NativeFunctions。然后，让桌面和Android应用程序/活动都实现此界面。在创建主项目时，您将传递应用程序/活动。在您的主应用程序中，您保留对传递的接口的引用，并使用此接口来调用本机函数，您可以分别为台式机和Android实现本机功能（不会使游戏在台式机上无法使用，也可以在其中使用SQLite；）。

好的，那很复杂，所以让我们来看一下它的作用（定义一个打开URL的函数）：

界面：

public interface NativeFunctions {
    public void openURL(String url);
}

主班：

public class MyGame extends Game/ApplicationListener {
    public NativeFunctions mNativeFunctions;

    public MyGame(NativeFunctions nativeFunctions) {
        mNativeFunctions = nativeFunctions;
    }
    // Exemplary function call, of course this doesn't make sense in render() ;)
    public void render() {
        mNativeFunctions.openURL("http://www.example.com");
    }
}

Android实现：

public class MyGameActivity extends AndroidApplication implements NativeFunctions {
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        initialize(new MyGame(this), false);
    }
    public void openURL(String url) {
        Intent viewIntent = new Intent("android.intent.action.VIEW", 
            Uri.parse(url));
        startActivity(viewIntent);  
    }
}

桌面实施：

public class MyGameDesktop implements NativeFunctions {
    public static void main(String[] args) {
        MyGameDesktop game = new MyGameDesktop();
        new LwjglApplication(new MyGame(game), "MyGame", 800,
             480, false);
    }
    public void openURL(String url) {
        // Your implementation to open URL on dekstop
    }
}

That’s it, your implementation to use SQLite should probably be along the same
way. Btw. I think that’s also the way to integrate advertisement boxes and to
talk to the system in general.