nsdictionary

I am new to iOS . I created a login page and everything works fine. I used JSON for checking username and password and got the response from server in a dictionary format. I want to extract the values from the dictionary and check them in my program. The response which I get from the server is: json: { error = 0; msg = ""; value = { user = false; }; }; First I want to check if the value with the key error is 0 or 1 . Then I want to check the value with the key user . I don't know how I should code to check it. Can anyone help? The code which I tried is below: - (void)connectionDidFinishLoading

Question: The generated XML file from an .XSD template produces the output pasted below. Since category 's keys are image , my standard way of parsing the image items wont work on category . I would like to place the category name="Category #" into an array, How can I make an array from the category fields. What I need: What I want is an array of dictionaries. Each position contains a dictionary representing one category, and each dictionary contains images for that category. Array: @"Category 1",@"Category 2",@"Category 3"; For each Array, a Dictionary with: <image> and everything in between

I'm trying to filter a response from Facebook's API, the JSON looks like this: { "Data": [ { "first_name" : "Joe", "last_name" : "bloggs", "uuid" : "123" }, { "first_name" : "johnny", "last_name" : "appleseed", "uuid" : "321" } ] } I load this into a NSDictionary, accessing it like [[friendDictionary objectForKey:@"data"] allObjects] I'm now trying to filter based on the first_name and last_name based on when someone inputs a name into a textfield. Here's what I have but its failing horribly: NSPredicate *filter = [NSPredicate predicateWithFormat:[NSString stringWithFormat:@"ANY.first_name

My NSMutableDictionary contains four NSArray s with their respective keys. These NSArray s are of size 2 and contain 2D coordinates. I want to get the most common coordinate among them. For example, If a coordinate is common to three arrays, it would be my first choice. How can I find that any coordinate is common to at least two arrays? Basically you want to find the pair of coordinates that has max occurences. So you can create an array of all coordinates and find its mode. NSMutableArray *allCoordinates = [NSMutableArray new]; [dictionary enumerateKeysAndObjectsUsingBlock:^(id key, id obj,