Pass an object defined from a customed tableViewCell - ios

Question

To explain my situation, I have a tableView with custom tableViewCell and I have created a button in this customed cell. I want this button to add an object box which is already defined to an NSMutableArray and pass this array to restoCardConfirmationViewController in order to create a cart.
The problem is that when I try to display the NSMutablearray in restoCardConfirmationViewController, the result is nil. This is my code :
The boxTableViewCell :
#import "boxTableViewCell.h"
#import "RestoCardConfirmationViewController.h"
#import "RestauCardViewController.h"
#implementation boxTableViewCell {
NSMutableArray *_pickerPlace;
}
- (IBAction)select:(id)sender {
RestoCardConfirmationViewController *restauCardConfirmation = [[RestoCardConfirmationViewController alloc] init];
[restauCardConfirmation.boxesCommande addObject:_box];
NSLog(#"la box choisie est %#",_box);
self.select.enabled = NO;
if(!self.select.enabled){
NSLog(#"button desabled");
}
}
The restoCardConfirmationViewController.h :
#import <UIKit/UIKit.h>
#import <Parse/Parse.h>
#interface RestoCardConfirmationViewController : UIViewController
#property(nonatomic) NSMutableArray *boxesCommande;
The restoCardConfirmationViewController.m :
#import "RestoCardConfirmationViewController.h"
#import "ChoisirDateViewController.h"
#interface RestoCardConfirmationViewController ()
#end
#implementation RestoCardConfirmationViewController
- (void)viewDidLoad {
[super viewDidLoad];
NSLog(#"The NSMutableArray in the other %#",self.boxesCommande);
// Do any additional setup after loading the view.
}

Answer 1

One approach is Delegation. Create a delegate that notifies every object added to RestoCardConfirmationViewController.
And the other simpler method is :
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [self.purchases count];
}
In the MainViewViewController, add button click event instead of using it in tableview cell.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
cell.button.tag = indexPath.row;
[cell.button addTarget:self
action:#selector(select)
forControlEvents:UIControlEventTouchUpInside];
// ...
}
This calls the following method, also implemented in MainViewController
- (IBAction)select:(id)sender {
int index = ((UIButton *)sender).tag;//it returns the indexPath
[self.boxesArray addObject: self.purchases[index]];
NSLog(#"la box choisie est %#",_box);
self.select.enabled = NO;
if(!self.select.enabled){
NSLog(#"button desabled");
}
}
Now in prepareforSeque, pass the created array to RestoCardConfirmationViewController.
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
// Make sure your segue name in storyboard is the same as this line
if ([[segue identifier] isEqualToString:#"YOUR_SEGUE_NAME_HERE"])
{
// Get reference to the destination view controller
RestoCardConfirmationViewController *vc = [segue destinationViewController];
// Pass any objects to the view controller here, like...
vc.boxesCommande = self.boxesArray;
}
}

Answer 2

Push To ViewController After addObject :
- (IBAction)select:(id)sender
{
RestoCardConfirmationViewController *restauCardConfirmation = [[RestoCardConfirmationViewController alloc] init];
[restauCardConfirmation.boxesCommande addObject:_box];
NSLog(#"la box choisie est %#",_box);
self.select.enabled = NO;
if(!self.select.enabled)
{
NSLog(#"button desabled");
}
[self.navigationController pushViewController:restauCardConfirmation animated:YES];
}

Answer 3

Don't forget to initialize your boxesCommande array in your custom view controller.
Add the following lines to your RestoCardConfirmationViewController.m in the #implementation:
- (instancetype)init {
if (self = [super init]) {
self.boxesCommande = [[NSMutableArray alloc] init];
}
return self;
}