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

Andre Robinson
PLUS
Andre Robinson
Courses Plus Student 6,057 Points

im lost

I don't know what I'm doing wrong it ask for a string i did it was wrong then i try to use methods and still I'm getting a error

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


@interface ViewController: UIViewController

@property (strong, nonatomic) IBOutlet UILabel *quoteLabel;

- (IBAction)quoteButtonPressed;

quoteLabel =@"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

1 Answer

Greg Kaleka
Greg Kaleka
39,019 Points

Hi Andre,

You need to assign values to properties in the implementation file, not the header file. Also, you need to set a UILabel's text property (it has other properties like font size, etc., so you can't just assign the NSString to the whole object). You also need to use self when referring to the property. Lastly, your string is missing a period :smile:.

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!
    self.quoteLabel.text = @"A stitch in time saves nine.";
}

@end
Andre Robinson
Andre Robinson
Courses Plus Student 6,057 Points

thank u lol i need to read and be more diligent in solving codes