UIViewController in Customized UITableViewCell - ios

Question

I know it was trivial but I have messed myself up and spent hours.
I have a UIViewController which is composed of CategoryTableview and ProductsTableView.
The ProductsTableView is creating the customized TableViewCell called ProductTableViewCell.
The ProductTableViewCell has title label, detail label, price label and a customized stepper to control the amount of the products which is subclassing from UIViewController.
The stepper, is composed with two buttons and a textfield.
I think the way I'm implementing the program is more complex than it should be.
And my question is how to detect the value changed by the stepper controller in the parent view controller.
The code is:
ProductionViewController.h (parent view controller for listing everything)
#interface ProductionViewController ()<UITableViewDataSource, UITableViewDelegate>
#property (nonatomic,strong) UITableView* categoryTable;
#property (nonatomic,strong) UITableView* productsTable;
#property (nonatomic,strong) CheckOutBar* checkOutBar;
//datasources
#property (nonatomic,strong) NSMutableArray* menuLists;
#property (nonatomic,strong) NSMutableArray* detailLists;
//datefield
#property (nonatomic,strong) NSString* startDate;
#property (nonatomic,strong) NSString* endDate;
the customized cell for products is
#interface ProductCell : UITableViewCell
#property (nonatomic, strong) UIImageView* eqiupmentImage;
#property (nonatomic, strong) UILabel* Title;
#property (nonatomic, strong) UILabel* details;
#property (nonatomic, strong) UILabel* prices;
#property (nonatomic, strong) MCStepperViewController* stepper;
The implementing method of the cell is
#implementation ProductCell
- (instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
{
_Title = [[UILabel alloc] init];
_eqiupmentImage = [[UIImageView alloc] init];
_details = [[UILabel alloc] init];
_details.font = kFONT(12);
_details.textColor = KColor_Gray;
_prices = [[UILabel alloc] init];
_stepper = [[MCStepperViewController alloc] init];
[self.contentView addSubview:_stepper.view];
[self.contentView addSubview:_Title];
[self.contentView addSubview:_eqiupmentImage];
[self.contentView addSubview:_details];
[self.contentView addSubview:_prices];
}
return self;
}
-(void)layoutSubviews
{
[super layoutSubviews];
[_eqiupmentImage setFrame:CGRectMake(kLeftMargin, kLeftMargin, 80 ,80)];
[_Title setFrame:CGRectMake(10+CGRectGetMaxX(_eqiupmentImage.frame), kLeftMargin/2, 60, 20)];
[_details setFrame:CGRectOffset(_Title.frame, 0, 20)];
[_prices setFrame:CGRectMake(10+CGRectGetMaxX(_eqiupmentImage.frame), CGRectGetMaxY(_eqiupmentImage.frame)-20, 40, 20)];
[_stepper.view setFrame:CGRectOffset(_prices.frame, 40, 0)];
}
The customized stepperview is
MCStepperViewController.h (for controlling the amount of products)
#interface MCStepperViewController : UIViewController
#property (nonatomic, strong) UITextField *amountText;
#property (nonatomic, strong) UIButton * plusButton;
#property (nonatomic, strong) UIButton * minusButton;
#property (nonatomic, assign) int max;
#property (nonatomic, assign) int min;
#property (nonatomic, assign) int amount;
Thank you

Answer 1

One way could be implementing a protocol in your cells with a method like - (void)productCell:(ProductCell *)cell didChangeStepperValue:(NSInteger)stepperValue. Then you make your view controller a delegate of each cell and call this method every time the stepper changes it's value. To separate cells from each other you could assign their tag value to your model's corresponding index.
Another way is to use KVO, but you should be careful with subscribing/unsubscribing. And using blocks, of course, is a viable option.