how to add object multi NSArray in one NSMutableArray

Question

I want add object from 2 NSArray to NSMutableArray. I dont know about this.

this my code:

@interface ViewController : UITableViewController
{
    NSArray *animal;
    NSArray *color;
    NSMutableArray *all;
}


@implementation ViewController

- (void)viewDidLoad
{
    [super viewDidLoad];

    animal = [[NSArray alloc]initWithObjects:@"Lion",@"Tiger",@"Dog",@"Cat",@"Sheep",@"Wolf", nil];
    color = [[NSArray alloc]initWithObjects:@"Blue",@"Red",@"Yellow",@"Green",@"Black", nil];

    all = ??? ; //how to add object from animal and color array in all 
}

Aravindhan · Accepted Answer · 2013-04-15 11:03:11Z

18

You can use addObjectsFromArray: from NSMutableArray class

all = [[NSMutableArray alloc]init];
[all addObjectsFromArray:animal];
[all addObjectsFromArray:color];

edited Apr 15, 2013 at 11:03

answered Apr 15, 2013 at 10:55

Aravindhan

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2 Comments

tkanzakic Over a year ago

there is an error in the initialization, you miss a '[', and you can use initWithArray avoiding one instruction

Aravindhan Over a year ago

@duDE : In fact I was sent to human verification also while answering this question. :)

Leo Chapiro · Accepted Answer · 2013-04-15 10:55:53Z

4

Try this:

animal = [[NSArray alloc]initWithObjects:@"Lion",@"Tiger",@"Dog",@"Cat",@"Sheep",@"Wolf", nil];
color = [[NSArray alloc]initWithObjects:@"Blue",@"Red",@"Yellow",@"Green",@"Black", nil];

all = [[NSMutableArray alloc] init];
[all addObjectsFromArray:animal];
[all addObjectsFromArray:color];

answered Apr 15, 2013 at 10:55

Leo Chapiro

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1 Comment

Donal Over a year ago

I tried with same code.In this case my application getting crash with EXC_BAD_ACCESS

Almudhafar · Accepted Answer · 2014-08-17 08:51:31Z

1

I am using this:

all = @[animal, color];

But you must convert the array "all" from NSMutableArray to NSArray.

answered Aug 17, 2014 at 8:51

Almudhafar

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Comments

Siddhant Saxena · Accepted Answer · 2016-05-12 12:18:49Z

1

all = [[all arrayByAddingObjectsFromArray: animal] mutableCopy];
all = [[all arrayByAddingObjectsFromArray: color] mutableCopy];

answered May 12, 2016 at 12:18

Siddhant Saxena

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