Objective-C: How to make a button take you to another class/storyboard

Question

I want to make the bottom button seen in the storyboard on the right to take the user to the signupstoryboard.storyboard/signupController seen on the left when the user taps on the button. How can that be done?

Error

{ - (IBAction)signupbutton:(id)sender; SignupController *signUpView = [self.storyboard instantiateViewControllerWithIdentifier:@"signup"]; [self presentViewController:signUpView animated:YES completion:nil]; }

By code: http://stackoverflow.com/questions/9896406/how-can-i-load-storyboard-programmatically-from-class — Larme, Aug 26 '14 at 13:11
Don't post screenshots of code in a question. Just copy and past the code. I can barely read the code in that screenshot. — Fogmeister, Aug 26 '14 at 13:13
@Larme How exactly does this help me? The dude doesn't pick a specific button to take him to a storyboard, he just names a storyboard to transition to another storyboard. I could use some help, I'm new on objective-c — Robert Van Gilder, Aug 26 '14 at 13:19
`- (IBAction)signupbutton:(id)sender { SignUpController *signUpView = [self.storyboard instantiateViewControllerWithIdentifier:@"signup"]; [self presentViewController:signUpView animated:YES completion:nil]; }` — Infinity James, Aug 26 '14 at 15:08
Replace your entire method starting from `{ - (IBAction)` with my version — Infinity James, Aug 26 '14 at 15:11
@InfinityJames Thanks. This did not give me any errors. However it gives me Thread 1: Signal SIGABRT ..... libc++abi.dylib: terminating with uncaught exception of type NSException (lldb) — Robert Van Gilder, Aug 26 '14 at 15:22

Infinity James · Answer 1 · 2014-08-26T13:36:43.190

0

You'll have to do it by code.

- (IBAction)buttonTapped
{
    NSString *storyboardName = @"signupstoryboard";
    UIViewController *nextViewController = [[UIStoryboard storyboardWithName:storyboardName bundle:nil] instantiateInitialViewController];
    // if you are using a navigation controller to push it:
    [self.navigationController pushViewController:nextViewController animated:YES];
    // otherwise if you are presenting it modally:
    [self presentViewController:nextViewController animated:YES completion:nil]    
}

edited Aug 26 '14 at 13:36

answered Aug 26 '14 at 13:18

Infinity James

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Yes, but I want it to go to the next view controller when I specifically click the bottom button which is named signupButton. Basically when I tap that, I want it to take me to the signup page which is a separate controller/storyboard – Robert Van Gilder Aug 26 '14 at 13:22
Yeah... hook up that button to the above method (switch the storyboard name with the actual name though obviously). – Infinity James Aug 26 '14 at 13:34
well here's my code and it gives me an error "expected expression" { - (IBAction)signupbutton:(id)sender; SignupController *signUpView = [self.storyboard instantiateViewControllerWithIdentifier:@"signup"]; [self presentViewController:signUpView animated:YES completion:nil]; } – Robert Van Gilder Aug 26 '14 at 13:35
Has the view controller actually got the Storyboard ID "signup"? – Infinity James Aug 26 '14 at 13:37
Have you debugged `storyboard` to check it is a valid object (and points to the correct storyboard)? – Infinity James Aug 26 '14 at 13:41
yeah, I have and it launches properly. But when I add the code above to the implementation, it says "expected expression" – Robert Van Gilder Aug 26 '14 at 13:48
Copy the full exception into a comment. – Infinity James Aug 26 '14 at 13:56
1

Your method is completely wrong. Look at my method and then yours and look at the structural differences, – Infinity James Aug 26 '14 at 14:01
yes bud, but the thing is that the error isn't at the part we have different. The error is at the -(IBAction)buttontapped! – Robert Van Gilder Aug 26 '14 at 14:02

Ty Lertwichaiworawit · Answer 2 · 2014-08-26T14:03:27.553

0

In your .m (at the top)

#import "signupController.h"

In your button action method (Don't forget to set the storyboard id for your signupController as signup

- (IBAction)signupbutton:(id)sender
{
    SignupController *signUpView = [self.storyboard instantiateViewControllerWithIdentifier:@"signup"]; [self presentViewController:signUpView animated:YES completion:nil];
}

Thats it

edited Aug 26 '14 at 14:03

answered Aug 26 '14 at 13:18

Ty Lertwichaiworawit

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That makes a lot of sense, but when I do that my app gives me SIGABRT and the app crashes... – Robert Van Gilder Aug 26 '14 at 13:27
The error isn't at your code. It's at this part: - (IBAction)signupbutton:(id)sender; it says "expected expression" – Robert Van Gilder Aug 26 '14 at 13:44
@RobertVanGilder Check your button connection at the Connections Inspector in signupstoryboard. It should have only 1 touchUpInside event connection to you `signupbutton` method – Ty Lertwichaiworawit Aug 26 '14 at 13:47
It does have one touchupinside. But the thing is, I want to connect the LoginStoryboard which has a "signup" button with the SignupStoryboard when the signup button within the loginstoryboard is tapped... – Robert Van Gilder Aug 26 '14 at 13:49
Take a screenshot of your error and update it in your question. That will give me get a better idea of the problem you're getting – Ty Lertwichaiworawit Aug 26 '14 at 13:53
your signupbutton method should not be inside other methods as well – Ty Lertwichaiworawit Aug 26 '14 at 14:10
Where did you place the signupbutton method in you code – Ty Lertwichaiworawit Aug 26 '14 at 14:10
Right. I did what you said. I fixed it, placed it outside as its own method. It launches, but the program crashes. and gives me SIGABRT – Robert Van Gilder Aug 26 '14 at 14:14

Objective-C: How to make a button take you to another class/storyboard

2 Answers2