Question

I am trying to divide a NSMutableDictionary into two NSMutableArrays on comparing one keyValue in NSMutableDictionary,

example:My NSMutableDictionary

    [
        {
            "0": "87",
            "1": "13270690451",
            "2": "Delhi night's",
            "3": "2106",
            "4": ":)",
            "5": "Kunwar",
            "6": "28.601736",
            "7": "77.159178",
            "8": "16.107459108715",
            "timeleft": "87",
            "imageurl": "13270690451",
            "beep": "Delhi night's",
            "beepid": "2106",
            "beepdescription": ":)",
            "username": "Kunwar",
            "Lat": "28.601736",
            "long": "77.159178",
            "distance": "16.107459108715"
        },
        {
            "0": "87",
            "1": "13278710651",
            "2": "Delhi IT hub",
            "3": "2145",
            "4": "LPT certification centre",
            "5": "Kunwar",
            "6": "28.491764",
            "7": "77.082712",
            "8": "2005.6281723630008",
            "timeleft": "87",
            "imageurl": "13278710651",
            "beep": "Delhi IT hub",
            "beepid": "2145",
            "beepdescription": "LPT certification centre",
            "username": "Kunwar",
            "Lat": "28.491764",
            "long": "77.082712",
            "distance": "2005.6281723630008"
       }
]

i want make two seperate mutablearray if “distance”: “2005.6281723630008” in dictionary is less than 500 add to mutable array1 other wise add to mutable array2

Answer 1

Something like this?

NSArray *sortedArray = [originalArray sortedArrayUsingComparator:^(id a, id b) {
    float fa = [[(NSDictionary*)a objectForKey:@"distance"] floatValue];
    float fb = [[(NSDictionary*)b objectForKey:@"distance"] floatValue];
    NSNumber *first = [NSNumber numberWithFloat:fa];
    NSNumber *second = [NSNumber numberWithFloat:fb];

    return [first compare:second];
}];

NSMutableArray *arr1 = [[NSMutableArray alloc] init];
NSMutableArray *arr2 = [[NSMutableArray alloc] init];

for (NSDictionary *dic in sortedArray) {
    if ([[dic objectForKey:@"distance"] floatValue] < 500.0f) {
        [arr1 addObject:dic];
    } else {
        [arr2 addObject:dic];
    }
}
originalArray = nil;