implement SLComposeViewController into Cocos2d -

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i can't seem slcomposeviewcontroller come button on cocos2d layer. if see stop working please tell. appreciated: n.b. viewcontroller uiviewcontroller

-(void)sceneselect {     nsstring *message = [nsstring stringwithformat:@"twitter message"];      nsstring *servicetype = [nsstring stringwithformat:@"slservicetypetwitter"];       if ([slcomposeviewcontroller isavailableforservicetype:servicetype])     {         slcomposeviewcontroller *tweetcontroller = [slcomposeviewcontroller composeviewcontrollerforservicetype:servicetype];         [tweetcontroller setinitialtext:message];          tweetcontroller.completionhandler = ^(slcomposeviewcontrollerresult result){               if (result == slcomposeviewcontrollerresultdone){                //nslog call             }             else if (result == slcomposeviewcontrollerresultcancelled){                //nslog call             }              [viewcontroller dismissviewcontrolleranimated: yes completion: nil];         };          [[[ccdirector shareddirector]openglview]addsubview:viewcontroller.view];         [viewcontroller presentviewcontroller:tweetcontroller animated:yes completion:nil];     }      else     {         uialertview *alertview = [[uialertview alloc] initwithtitle:@"twitter" message:@"twitter not working" delegate:nil cancelbuttontitle:@"dismiss" otherbuttontitles:nil];          [alertview show];     } }

cocos2d 2.0 use navigation controller in appdelegate

    appcontroller *app = (appcontroller*) [[uiapplication sharedapplication] delegate];     [[app navcontroller] presentmodalviewcontroller:tweetcontroller animated:yes];

here full twitter code: http://pastebin.com/hprrjm1n


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