iOS Build a Simple iPhone App with Objective-C Views and View Controllers IBActions and IBOutlets

Devin Scheu
Devin Scheu
66,190 Points

IOS Help

Question: Assume we're creating an app that tells us random quotes. We have a label in our view that's connected to a ViewController.h file using an IBOutlet. We also have a button connected to a quoteButtonPressed:(id)sender action. When we tap the button, we want to show the user a quote. Assign the string "A stitch in time saves nine." to the quoteLabel.

Code:

ViewController.h
#import "UIViewController.h"
#import "UILabel.h"


@interface ViewController: UIViewController

@property (strong, nonatomic) IBOutlet UILabel *quoteLabel;
- (IBAction)quoteButtonPressed;
  quoteLabel.text = "A stitch in time saves nine."
@end
ViewController.m
#import "ViewController.h"

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.


}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

- (IBAction)quoteButtonPressed {

    //Add your code below!

}

@end

2 Answers

Chris Shaw
Chris Shaw
26,630 Points

Hi Devin,

You have the correct code but not in the correct spot as you have it declared it in your interface instead of your implementation file for the quoteButtonPressed @IBAction.

- (IBAction)quoteButtonPressed {
  self.quoteLabel.text = @"A stitch in time saves nine.";
}

Hope that helps.

Kieran Tross
Kieran Tross
8,264 Points

That still didn't work for me.

}

  • (IBAction)quoteButtonPressed { quoteLabel.text = "A stitch in time saves nine." }
Chris Shaw
Chris Shaw
26,630 Points

Sorry, that was my bad, I've updated my post above.