[SOLVED] Include an iOS framework in QT header file

[hasti66]

Hello ,I use qt5.3 on mac and i want to develop an application for iphone. I know how can i use objective c code in qt5.3. Now i want to use iOS UIViewController in qt header file.
I have a bridge method in mainwindow.h to invoke a objective c++ method.
//in mainwindow.h

#include <UIKit/UIKit.h> //error come from here
...
public:

int bridgeMethodToCallObjectiveC(UIViewController *);

...

I've put implementation of that method in .mm file.
When i add #include <UIKit/UIKit.h> in header file to use UIViewController, i get this error:
unknown type name 'nsstring' did you mean 'qstring'

I've added LIBS += -framework UIKit in .pro file.
how can i solve it?
thanks in advance...

[hasti66]

I solved it by myself.
in mainwindow.h i changed the method signature and removed #include <UIKit/UIKit.h>
public: int bridgeMethodToCallObjectiveC(void *);