Question

I’m developing a new iOS app
I have a view controller in my storyboard that has a text field. Using UITextFieldDelegate, upon pressing search on the keyboard I perform the segue to a table view controller.
But this second table view controller is embedded in a navigation view controller. The first view controller is not a part of it.
Segue is done using:

    UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
    UIViewController *vc = [storyboard instantiateViewControllerWithIdentifier:@"SearchTableViewController"];
    [vc setModalPresentationStyle:UIModalPresentationFlipHorizontal];

    [self presentModalViewController:vc animated:YES];

What I want to do is, pass data from the first view controller’s text field to the other view controller in a NSString. How do I do this?

There’s an IBOutlet, searchField on the text field in the first.
And in the second’s header file a property

@property (nonatomic, strong) NSString *searchText.

So how do I go about passing searchField.text to searchText?

Answer 1

When you instantiate your view controller you should cast it as your custom view controller subclass. If you do this you can then set the searchText property value.

SearchTableViewController *vc = (SearchTableViewController*)[storyboard instantiateViewControllerWithIdentifier:@"SearchTableViewController"];

vc.searchText = self.searchField.text;