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Ben Junya
Ben Junya
12,365 Points

Crystal Ball text disappears when pressing the button

Hi there!

I'm having a problem when I press the button, The text disappears completely. Can someone give me a hand?


import <UIKit/UIKit.h>

@class PMCrystalBall;

@interface PMViewController : UIViewController @property (strong, nonatomic) IBOutlet UILabel *predictionLabel;

@property (strong, nonatomic) PMCrystalBall *crystalBall;

  • (IBAction)buttonPressed;



import "PMViewController.h"

import "PMCrystalBall.h"

@interface PMViewController ()


@implementation PMViewController

  • (void)viewDidLoad { [super viewDidLoad];

    self.crystalBall = [[PMCrystalBall alloc] init]; }

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

  • (IBAction)buttonPressed {

    self.predictionLabel.text = [self.crystalBall randomPrediction];

} @end


import <Foundation/Foundation.h>

@interface PMCrystalBall : NSObject { NSArray *_predictions;


@property (strong, nonatomic, readonly) NSArray *predictions; @property (strong, nonatomic) NSString *randomPrediction;

-(NSString*) randomPrediction;



import "PMCrystalBall.h"

@implementation PMCrystalBall

-(NSArray*) predictions { if (_predictions == nil) { _predictions = [[NSArray alloc] initWithObjects:

                    @"It is certain",
                    @"It is decidedly so",
                    @"All signs say yes",
                    @"The stars are not aligned",
                    @"My reply is no",
                    @"It is doubtful",
                    @"Better not tell you now",
                    @"Concentrate and ask again",
                    @"Unable to answer now", nil];
return _predictions;

} -(NSString*) randomPredictiton { int random = arc4random_uniform(self.predictions.count); return [self.predictions objectAtIndex:random]; }


Thanks in advance!

1 Answer

Zach Lorber-Termaat
Zach Lorber-Termaat
7,680 Points

Looks like you just need to force the text to be visible or in objective-c not hidden. Try this

(IBAction)buttonPressed { self.predictionLabel.text = [self.crystalBall randomPrediction]; [predictionLabel setHidden:NO]; } @end

I am fairly new at objective-c so don't be upset if this doesn't work, however I don't think it could cause any harm haha.