XE4 ( Firemonkey + iOS Static Library) , Pascal conversion from Objective C Class?

Question

How to Conversion ? (Objective C Class -> Delphi XE4 )

and How to use Objective-C Class in static Library from Delphi XE ?

Following is the my first trial.

Answer 1

When you want to import a Objective C class you have to do the following:

type
  //here you define the class with it's non static Methods
  objc_test = interface (NSObject)
    [InterfaceGUID]
    function  test(value : integer) : integer; cdecl;     
  end;

type
  //here you define static class Methods 
  objc_testClass = interface(NSObjectClass)
    [InterfaceGUID]
  end;

type
  //the TOCGenericImport maps objC Classes to Delphi Interfaces when you call Create of TObjc_TestClass
  TObjc_TestClass = class(TOCGenericImport<objc_testClass, objc_Test>) end;

Also you need a dlopen('test.a', RTLD_LAZY) (dlopen is defined in Posix.Dlfcn)

Then you can use the code as following:

procedure Test;
var
   testClass: objc_test;
begin
   testClass := TObjc_TestClass.Create;
   testClass.test(3);

end;