Check if NSDictionary is empty

Question

I want to check if an NSDictionary is empty. I am doing it like this.

  mutDictValues = [[[NSUserDefaults standardUserDefaults] objectForKey:@\"dicV         


        

Answer 1

I had a bit different issue but it is related so i would like to share it here.

I was fetching the webservices & storing data in NSDictionary & again Fetching objectForKey which was Null. So the solution i found is as under

NSMutableDictionary *result = [NSJSONSerialization JSONObjectWithData:[str dataUsingEncoding:NSUTF8StringEncoding] options:0 error:nil];

    // NSLog(@"%@" , result);

    NSMutableDictionary *sup = [result objectForKey:@"keysupplied"];
    NSNull *n=[NSNull null];
    if ( sup ! = n ){
      //Your code if its not null
    }

The reason behind using NSNull was it was returning (NSNull *) when i debugged the application So i finally figured out this way.