objective c - How to move from a View to a Tab Bar Controller in iOS? -


i'm new ios , have issue.

i have view login form , button.

i want make once button pressed, login processed , if successful loads first tab of tab bar controller.

how do this? i've tried creating manual segue , loading doesn't work :(

here code happens after login (its github login form):

- (ibaction)login:(id)sender { boolean error = no; nsstring* username = _usernamefield.text; nsstring* password = _passwordfield.text; uicolor *red = [uicolor colorwithred:255/255.0f green:0/255.0f blue:0/255.0f alpha:1.0f]; uicolor *black = [uicolor colorwithred:0/255.0f green:0/255.0f blue:0/255.0f alpha:1.0f]; github* github = [[github alloc] init]; bool result = no;  // checking blanks if([username isequaltostring:@""]) {     [_usernamelabel settextcolor:red];     error = yes; } else {     [_usernamelabel settextcolor:black]; }  if([password isequaltostring:@""]) {     [_passwordlabel settextcolor:red];     error = yes; } else {     [_passwordlabel settextcolor:black]; }  if(!error) {     result = [github loginwithusername:username andpassword:password];     if(result == yes)     {         // logged in successfully!         [_errorlabel sethidden:yes];          nslog(@"yep");          [self performseguewithidentifier:@"loginsegue" sender:self];     }     else     {         // error handling         [_errorlabel settext:@"error: incorrect username / password"];         [_errorlabel sethidden:no];         [_passwordfield settext:@""];     } } else {     // error handling     [_errorlabel settext:@"error: please correct errors below:"];     [_errorlabel sethidden:no];     [_passwordfield settext:@""]; } }


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