ios6 - iPhone:Upload image on Instagram -

i have written code upload image on instagram follows:

cgrect rect = cgrectmake(20 ,20 , 200, 200);     uigraphicsbeginimagecontextwithoptions(self.view.bounds.size, self.view.opaque, 0.0);     [self.view.layer renderincontext:uigraphicsgetcurrentcontext()];     uigraphicsendimagecontext();      nsarray *paths = nssearchpathfordirectoriesindomains(nsdocumentdirectory,nsuserdomainmask, yes);     nsstring *documentsdirectory = [paths objectatindex:0];     nsstring *jpgpath = [documentsdirectory stringbyappendingpathcomponent:@"after2sm.ig"];      nsstring *fileurl = [nsstring stringwithformat:@"file://%@",jpgpath];     nsurl *igimagehookfile = [nsurl fileurlwithpath:fileurl];      self.dic.uti = @"com.instagram.photo";      self.dic = [self setupcontrollerwithurl:igimagehookfile usingdelegate:self];     self.dic=[uidocumentinteractioncontroller interactioncontrollerwithurl:igimagehookfile];      [nsdictionary dictionarywithobject:@"my caption" forkey:@"instagramcaption"];     [self.dic presentopeninmenufromrect:rect inview:self.view animated:yes]; 

but opens actionsheet "instagram" option when click on nothing happens..can please me

try , in code set image in imgupload object

    - (ibaction)instagrambuttonclick    {           cgrect rect = cgrectmake(0.0, 0.0, 612, 612);         uigraphicsbeginimagecontext(rect.size);         [imgupload drawinrect:rect];          uiimage *img = uigraphicsgetimagefromcurrentimagecontext();          uigraphicsendimagecontext();         nsstring  *savepath = [nshomedirectory() stringbyappendingpathcomponent:@"documents/test.igo"];         [uiimagejpegrepresentation(img, 1.0) writetofile:savepath atomically:yes];          nsurl *igimagehookfile = [[nsurl alloc] initwithstring:[[nsstring alloc] initwithformat:@"file://%@", savepath]];           self.dic.uti = @"com.instagram.photo";         self.dic = [self setupcontrollerwithurl:igimagehookfile usingdelegate:self];          self.dic=[uidocumentinteractioncontroller interactioncontrollerwithurl:igimagehookfile];           self.dic.annotation = [nsdictionary dictionarywithobject:@"your message" forkey:@"instagramcaption"];         [self.dic presentopeninmenufromrect: cgrectzero    inview: self.view animated: yes ];      } 

//add delegate uidocumentinteractioncontrollerdelegate , following delegate method

- (uidocumentinteractioncontroller *) setupcontrollerwithurl: (nsurl*) fileurl usingdelegate: (id <uidocumentinteractioncontrollerdelegate>) interactiondelegate {         uidocumentinteractioncontroller *interactioncontroller = [uidocumentinteractioncontroller interactioncontrollerwithurl: fileurl];         interactioncontroller.delegate = interactiondelegate;         return interactioncontroller;  }