Question

I am trying to implement -(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath

So far this is what I have in my first UITableViewController:

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{    
    secondviewcontroller *vc = [[secondviewcontroller alloc]init];

    BudgetPlan *tempBudget = [self.budgetElements objectAtIndex:indexPath.row];

    vc.budgetPlan = tempBudget;
}

My second view controller has the ff:

// secondviewcontroller.h

@property (strong, nonatomic) BudgetPlan *budgetPlan;


//secondviewcontroller.m

@synthesize budgetPlan = _budgetPlan

- (void)viewDidLoad
{
    [super viewDidLoad];

    NSLog(@"%@ was passed with %@",self.budgetPlan.name, self.budgetPlan.amount);

self.budgetName.text = _budgetPlan.name;
    self.amountBudgeted.text = [NSString stringWithFormat:@"%.02f", _budgetPlan.amount];
}

Unfortunately, the NSLog shows up as nil. Consequently, UILabels budgetName.text and amountBudgeted.text are also empty.

I’ve set the datasource and delegates to the custom UIViewController which contains the UITableView element (this is not a UITableViewController). It seems like I am passing the object, but it doesn’t seem to be passing…

Where am I going wrong?

Answer 1

Thanks all. The problem seems to be my use of storyboards. This

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath method seems to only work when not using storyboards.

I answered it by using Segues instead.

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {

/*
 When a row is selected, the segue creates the detail view controller as the destination.
 Set the detail view controller's detail item to the item associated with the selected row.
 */

    if ([[segue identifier] isEqualToString:@"showDetailsOfBudget"]) 
    {
        NSIndexPath *indexPath = [self.budgetsTable indexPathForSelectedRow];
        BudgetDetailsViewController *detailsViewController = [segue destinationViewController];
        detailsViewController.budget = [self.budgetPlan.budgets objectAtIndex:indexPath.row];
    }
}