how to get NSMutableArray From NSMutableArray

Question

I have NSMutableArray as below.

(
        {
        ClientId = "17";
        FileURL = "http://www.xxx.com/b0a89db3-482b-464e-81ae-78439527c702.jpg";
    },
        {
        ClientId = "56";
        FileURL = "http://www.xxx.com/f7633371-b726-4332-9b26-a98a2fed991d.jpg";
    }
)

What I want is NSMutableArray which will look similar to below.

NSMutableArray *image_array = 
    [NSMutableArray arrayWithObjects:
    @"http://www.xxx.com/b0a89db3-482b-464e-81ae-78439527c702.jpg", 
    @"http://www.xxx.com/f7633371-b726-4332-9b26-a98a2fed991d.jpg", 
    nil];

Any idea how to do that?

I tried with

NSArray *filtered = [feeds filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:@"(FileURL CONTAINS[cd] %@)", @"%http%"]];
NSLog(@"filter====%@", filtered);

but I am not getting anything. Data is blank.

Actually I have main array in below format.

(
        {
        ClientId = "17\n    ";
        FileURL = "http://www.xxx.com/b0a89db3-482b-464e-81ae-78439527c702.jpg\n\n";
    },
        {
        ClientId = "56\n    ";
        FileURL = "http://www.xxx.com/f7633371-b726-4332-9b26-a98a2fed991d.jpg\n\n";
    }
)

Any idea how to remove those \n and white spaces while creating new array?

Is it an array of dictionaries? Why not just iterate over them and grab the data? — Eiko
– Eiko, Commented Aug 26, 2013 at 18:56
There are methods in NSString like stringByTrimmingCharactersInSet: that'll let you remove the newlines. — Caleb
– Caleb, Commented Aug 26, 2013 at 19:01

Wain · Accepted Answer · 2013-08-26 18:52:28Z

6

You can use KVC to get the array:

[[array valueForKey:@"FileURL"] mutableCopy];

edited Aug 26, 2013 at 18:52

answered Aug 26, 2013 at 18:40

Wain

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2 Comments

rmaddy Over a year ago

I believe this gives back an NSArray, not an NSMutableArray.

Wain Over a year ago

@rmaddy, I can't test right now but I think you're right so I've edited.

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