SDL2-CS iOS

=======================
SDL_uikitappdelegate.m
=======================

Add this code underneath "static int exit_status;":

    typedef int (*SDL_MAIN_FUNC)(void);
    static SDL_MAIN_FUNC MainFunc;

    extern void SetMainFunc(SDL_MAIN_FUNC func)
    {
        MainFunc = func;
    }


Rename main to SDL_main:
    int SDL_main(int argc, char **argv)

In -(void)postFinishLaunch(), change SDL_main(...) to:
    MainFunc()

==============
Application.cs
==============

using System;
using System.Runtime.InteropServices;
using ObjCRuntime;

...

    static void Main(string[] args)
#if __IOS__
    {
        realArgs = args;
        SetMainFunc(FakeMain);
        SDL_Main(0, IntPtr.Zero);
    }

    [DllImport("__Internal", EntryPoint = "SDL_main")]
    static extern void SDL_Main(int argc, IntPtr argv);

    [DllImport("__Internal", EntryPoint = "SetMainFunc")]
    static extern void SetMainFunc(Func<int> func);

    static string[] realArgs;

    [MonoPInvokeCallback(typeof(Func<int>))]
    static int FakeMain()
    {
        RealMain(realArgs);
        return 0;
    }

    static void RealMain(string[] args)
#endif
    {
        // your stuff
    }
    
=======
Linking
=======

Reference the SDL2-CS.Core project from your Application.

To link with libSDL2.a (compiled from source from SDL/Xcode-iOS/SDL), add it to your project.
Then in Project Options > iOS Build > Additional mtouch arguments, write the following:

    -gcc_flags "-L${ProjectDir} -lSDL2 -force_load ${ProjectDir}/libSDL2.a -framework AVFoundation -framework AudioToolbox -framework CoreGraphics -framework Metal -framework QuartzCore -framework OpenGLES -framework GameController -framework CoreMotion -framework CoreBluetooth"

=================
SDL2-CS.dll.config
=================

Change the target for dll=SDL2 to "__Internal" so it will look in the statically-linked .a file.