Filtering NSArray having Dictionary inside it - swift 1.2

Question

(
        {
        "creation_date" = "23-02-2016 18:29";
        filename = "abc.pdf";
    },
        {
        "creation_date" = "23-02-2016 18:28";
        filename = "32.pdf";
    },
        {
        "creation_date" = "23-02-2016 18:28";
        filename = "78.pdf";
    },
        {
        "creation_date" = "23-02-2016 17:28";
        filename = "65.pdf";
    },
        {
        "creation_date" = "23-02-2016 16:48";
        filename = "6.pdf";
    }
)

I have NSArray like this. I want Filtered NSArray of NSMutableDictionary which has filename = SearchString. Means I am using searchBarController, so when I will search something it should filter array having that searched filename in dictionaries. How can I do that? Any suggestions?

Thanks

Answer 1

var fileterArray: NSArray = yourArray.filteredArrayUsingPredicate(NSPredicate(format: "self.%@ contains[c] %@", "filename", "SearchString"))

print(fileterArray)