objective c - Send Data to View Controller of choice -

i trying perform know simple, yet not sure of syntax.

first, user input facebook login info, signs them in. code pulls profile picture, username, email, , facebook button , displays in "loginiewcontroller". prof pic view controller called profilepicture, username called lblusername, email lblemail, , fb button called loginbutton.

all want write code sends these 4 values profileviewcontroller, not next view controller segue, displays profile picture, username, email , * logout * button. below code loginviewcontroller:

***fyi, code shows initial view of fb login button, regular login button, , sign button, profile picture view, username, , email hidden start. once logged in, have same view controller show profile picture, username, , email, hiding ever login button *not *clicked.

#import "loginviewcontroller.h"  @interface loginviewcontroller ()  @end  @implementation loginviewcontroller   - (void)viewdidload {     [super viewdidload];     nologin.layer.cornerradius = 3;     [nologin.layer setshadowcolor:[uicolor blackcolor].cgcolor];     [nologin.layer setshadowopacity:0.1];     [nologin.layer setshadowradius:0.2];     [nologin.layer setshadowoffset:cgsizemake(0.0, 1.1)];     [nologin.layer setbordercolor:[uicolor blackcolor].cgcolor];     [nologin.layer setborderwidth:0.1f];      self.loginbutton.delegate = self;     [self togglehiddenstate:yes];     _signup.hidden = no;     nologin.hidden = no;     self.lblloginstatus.text = @"";     self.loginbutton.readpermissions = @[@"public_profile", @"email", @"user_friends"];    // self.  }  -(void)loginviewshowingloggedinuser:(fbloginview *)loginview{     self.lblloginstatus.text = @"";      [self togglehiddenstate:no];     [self toggleunhiddenstate:yes];      uistoryboard *storyboard = [uistoryboard storyboardwithname:@"main" bundle:nil];     uitabbarcontroller *tabcontroller = (uitabbarcontroller *)[storyboard instantiateviewcontrollerwithidentifier:@"tabcontroller"];     [self presentmodalviewcontroller:tabcontroller animated:yes];    }  -(void)loginviewfetcheduserinfo:(fbloginview *)loginview user:(id<fbgraphuser>)user{     nslog(@"%@", user);     self.profilepicture.profileid = user.objectid;     self.lblusername.text = user.name;     self.lblemail.text = [user objectforkey:@"email"]; }  -(void)loginviewshowingloggedoutuser:(fbloginview *)loginview{     self.lblloginstatus.text = @"";     [self togglehiddenstate:yes];     _signup.hidden = no;     nologin.hidden = no;  }   -(void)loginview:(fbloginview *)loginview handleerror:(nserror *)error{     nslog(@"%@", [error localizeddescription]); }   -(void)togglehiddenstate:(bool)shouldhide{     self.lblusername.hidden = shouldhide;     self.lblemail.hidden = shouldhide;     self.profilepicture.hidden = shouldhide;     self.begin.hidden = shouldhide;     self.loggedinwallpaper.hidden = shouldhide;  }  -(void)toggleunhiddenstate:(bool)shouldshow{     _signup.hidden = yes;     nologin.hidden = yes;  }  - (void)didreceivememorywarning {     [super didreceivememorywarning];     // dispose of resources can recreated. }   - (ibaction)unwindtologin:(uistoryboardsegue *)segue {  }     #pragma mark - navigation  // in storyboard-based application, want little preparation before navigation /*- (void)prepareforsegue:(uistoryboardsegue *)segue sender:(id)sender {     [segue destinationtabbabcontroller]     // new view controller using [segue destinationviewcontroller].     // pass selected object new view controller. }   - (ibaction)j:(id)sender { }*/ - (ibaction)enter:(id)sender forevent:(uievent *)event { } @end 

after have initialised viewcontroller want present, can access its' properties (those you've mentioned , assign them values want).

-(void)loginviewshowingloggedinuser:(fbloginview *)loginview{ self.lblloginstatus.text = @"";  [self togglehiddenstate:no]; [self toggleunhiddenstate:yes];  uistoryboard *storyboard = [uistoryboard storyboardwithname:@"main" bundle:nil]; uitabbarcontroller *tabcontroller = (uitabbarcontroller *)[storyboard instantiateviewcontrollerwithidentifier:@"tabcontroller"]; //get first controller displayed (could of different index, depends on how set up) uiviewcontroller *firstcontroller = [[((uitabbarcontroller *)self.window.rootviewcontroller) viewcontrollers] objectatindex:0];//modify uiviewcontroller view controller class name...  //now set properties of controller info need. i've added one, please continue others... firstcontroller.lblusername = self.lblusername; //finally, present tabcontroller. [self presentmodalviewcontroller:tabcontroller animated:yes]; }