Add up different slider values - Objective C

Question

My sliders are located on 10 different views. So, I want the user to be able to select a value with ratingSliderOne, and then move on to "Page 2" and select another value etc. Those values should then be added up to a total

.h

@interface CBViewController : UIViewController

//Scorelabel
@property (nonatomic, readwrite) NSInteger theTotalScore;
@property (strong, nonatomic) IBOutlet UILabel *totalScoreLabel;

// Page 1
@property (strong, nonatomic) IBOutlet UISlider *ratingSliderOne;
@property (strong, nonatomic) IBOutlet UILabel *repeaterLabelOne;

// Page 2
@property (strong, nonatomic) IBOutlet UISlider *ratingSliderTwo;
@property (strong, nonatomic) IBOutlet UILabel *repeaterLabelTwo;

// Page 3
@property (strong, nonatomic) IBOutlet UISlider *ratingSliderThree;
@property (strong, nonatomic) IBOutlet UILabel *repeaterLabelThree;

// Page 4
@property (strong, nonatomic) IBOutlet UISlider *ratingSliderFour;
@property (strong, nonatomic) IBOutlet UILabel *repeaterLabelFour;

// Page 5
@property (strong, nonatomic) IBOutlet UISlider *ratingSliderFive;
@property (strong, nonatomic) IBOutlet UILabel *repeaterLabelFive;

// Page 6
@property (strong, nonatomic) IBOutlet UISlider *ratingSliderSix;
@property (strong, nonatomic) IBOutlet UILabel *repeaterLabelSix;

// Page 7
@property (strong, nonatomic) IBOutlet UISlider *ratingSliderSeven;
@property (strong, nonatomic) IBOutlet UILabel *repeaterLabelSeven;

// Page 8
@property (strong, nonatomic) IBOutlet UISlider *ratingSliderEight;
@property (strong, nonatomic) IBOutlet UILabel *repeaterLabelEight;

// Page 9
@property (strong, nonatomic) IBOutlet UISlider *ratingSliderNine;
@property (strong, nonatomic) IBOutlet UILabel *repeaterLabelNine;

// Page 10
@property (strong, nonatomic) IBOutlet UISlider *ratingSliderTen;
@property (strong, nonatomic) IBOutlet UILabel *repeaterLabelTen;


-(void)updateTotalScores;

- (IBAction)ratingSliderDidChange:(id)slider;

@end

.m

    - (IBAction)ratingSliderDidChange:(id)slider
{

    int sliderValue1 = self.ratingSliderOne.value;
    int sliderValue2 = self.ratingSliderTwo.value;

    int total = sliderValue1 + sliderValue2;

    self.theTotalScore = total;
    NSLog(@"%i, %i, %i", sliderValue1, sliderValue2, total);
    [self updateTotalScores];
}

-(void)updateTotalScores{



    if (_theTotalScore > 0) {
        self.totalScoreLabel.text = [NSString stringWithFormat:@"%i", _theTotalScore];
        NSLog(@"%i", _theTotalScore);
    }
}

Currently, the NSLog(@"%i, %i, %i", sliderValue1, sliderValue2, total); returns the correc values for each slider. But when you change from page 1 (i.e. ratingSliderOne) to page 2, it "forgets" the value of ratingSliderOne.

EDIT: Added all the code and clarified the question

Answer 1

- (IBAction)ratingSliderDidChange:(id)slider is a delegate callback. It will be fired every time it moves or any other slider connected on the screen moves.

it sounds like what you need is inside this callback to get the value of each slider on the page and create the total each time. Like so:

- (IBAction)ratingSliderDidChange:(id)slider
{
    int total = 0;

    total += self.ratingSliderOne.value;
    total += self.ratingSliderTwo.value;

    // etc ....

    self.theTotalScore = total;
    NSLog(@"%i", _theTotalScore);
    [self updateTotalScores];
}