Try ti insert dictionary in dictionary return nil

Question

I try to insert dictionary into dictionary by passing dictionary as argument into method. I have a one dictionary with keys 0,1,2,...,6 which consist of dictionaries and i try to fetch dictionary with key 0, in new dictionary but new dictionary is nil.

dictionaryWithWeekDays consist of something like this:

0 =     {
        clouds = 0;
        deg = 239;
        dt = 1475175600;
        humidity = 76;
        pressure = "993.71";
        speed = "3.24";
        temp =         {
            day = "70.09";
            eve = "74.73";
            max = "76.64";
            min = "51.53";
            morn = "54.66";
            night = "51.53";
        };
        weather =         (
                        {
                description = "light rain";
                icon = 10d;
                id = 500;
                main = Rain;
            }
        );
    };
    1 =     {
        clouds = 12;
        deg = 337;
        dt = 1475607600;
        humidity = 0;
        pressure = "1012.86";
        speed = "3.89";
        temp =         {
            day = "59.59";
            eve = "64.56";
            max = "64.56";
            min = "49.64";
            morn = "49.64";
            night = "54.32";
        };
        weather =         (
                        {
                description = "light rain";
                icon = 10d;
                id = 500;
                main = Rain;
            }
        );
    };

I have a for loop because want to pass all keys in method. and i just call my method into loop like this:

for (int i = 0; i <= 6; i++) {
        NSString *key = [NSString stringWithFormat:@"%i", i];
        [self addValuesToArrayWithTemp:dictionaryWithWeekDays key:key index:i];
}

And here is my addValuesToArrayWithTemp :

-(void) addValuesToArrayWithTemp:(NSDictionary *)inputDic key:(NSString *)key index:(int)ind {
    NSDictionary *currentDic = [inputDic objectForKey:key];
    NSLog(@"currentDic = %@", currentDic);
    NSLog(@"key = %@", key);
   ...
   ...
}

(NSDictionary *)inputDic - is ok it consist all what i pass before, key also alright have @"0" value. but the currentDic is nil. Why?? Maybe i misunderstand something. Thanks for help!

Answer 1

I'm assuming your printout of dictionaryWithWeekDays is from the debugger. I believe that your keys in dictionaryWithWeekDays are not strings, if they were, the listing should show "0" = instead of 0 =

You want to check what's actually the type of the key value in dictionaryWithWeekDays.