使用segue将NSMutableArray字典数据传递到另一个视图

Question

I have code like this: In .m

    - (void)viewDidLoad
            {
            [super viewDidLoad];

        arrReceipes = [[NSMutableArray alloc] init];
        arrReceipesTime1 = [NSArray arrayWithObjects:@"Half an hour or less",@"About an hour",@"More than an hour", nil];
        NSDictionary *arrReceipeTime1Dict = [NSDictionary dictionaryWithObject:arrReceipesTime1 forKey:@"Find Recipes"];
        arrReciepHeart = [NSArray arrayWithObjects:@"HealthyAndDelicius", nil];
        NSDictionary *arrRecipesHeartDict = [NSDictionary dictionaryWithObject:arrReciepHeart forKey:@"Find Recipes"];
        arrRecipeLifestyle = [NSArray arrayWithObjects:@"Recipe for fall",@"Quick and easy",@"Cooking for kids",@"Easy entertaining",@"American classics", nil];
        NSDictionary *arrRecipeLifestyleDict = [NSDictionary dictionaryWithObject:arrRecipeLifestyle forKey:@"Find Recipes"];

        [arrReceipes addObject:arrReceipeTime1Dict];
        [arrReceipes addObject:arrRecipesHeartDict];
        [arrReceipes addObject:arrRecipeLifestyleDict];
   }

Now, I want to pass values from "arrReceipes"(in which I'm doing " addObject:dictionaryObject ") to another view controller using segue(or any other way, if you know)

And using "segue" I'm doing it using following:

-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
    {
    if ([segue.identifier isEqualToString:@"showRecipeDetail"]) {
        NSIndexPath *indexPath = [self.tableView1 indexPathForSelectedRow];
       RecipeDetailViewController *destViewController = segue.destinationViewController;

       destViewController.recipeName = [arrReceipes objectAtIndex:indexPath.row];


    }

    }

I'm getting exception as my "arrReceipes" is NSMutableArray assigned with dictionary objects.Instade if taking " NSMutableArray ", if I'm using " NSArray " its working fine. But I want to use " NSMutableArray "; because with this I can make group in table view.

Answer 1

Probably you wanted

-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    if ([segue.identifier isEqualToString:@"showRecipeDetail"]) {
        NSIndexPath *indexPath = [self.tableView1 indexPathForSelectedRow];
        RecipeDetailViewController *destViewController = segue.destinationViewController;

        destViewController.recipeName = arrReceipes[indexPath.section][@"Find Recipes"][indexPath.row];
}

Which is the same as

destViewController.recipeName = [[[arrReceipes objectAtIndex:indexPath.section] valueForKey:@"Find Recipes"] objectAtIndex:indexPath.row];