ios - Segue launching but viewDidLoad not firing for new ViewController -

i have little issue launching segue code.

what want in app:

1. logs website post call.
2. when gets successful response login attempt calls function change vc performseguewithidentifier call.
3. when new view controller loads populates webview page site app logged into

so far getting far segue call. calls can pushes new vc (or somewhere @ least), gets rid of image being displayed old vc, doesn't cause new view controller populate webview.

code calling function:

....  success:^(afhttprequestoperation *operation, id responseobject){              ...            [self blah];              ...       } .... 

code in function:

- (void)blah{     [self performseguewithidentifier: @"tomap" sender: self];     nslog(@"segue map"); } 

code in viewdidload of new vc.

- (void)viewdidload{     [super viewdidload];     // additional setup after loading view.      nslog(@"mapviewcontroller");      nsstring *urladdressformap = @"this link map goes";     nsurl *urlformap = [nsurl urlwithstring:urladdressformap];     nsurlrequest *loadmap = [nsurlrequest requestwithurl:urlformap];      [mywebview loadrequest:loadmap]; } 

this function not being fired segue. know not getting fired because not see output form line in logs: nslog(@"mapviewcontroller");

in storyboard, select mapviewcontroller, click on identity inspector. first item should custom class, , class name should set name of mapviewcontroller class.