Retrieve separate values from an array

Question

I have a variable which is printing its value on console like this:

source id key is (

   {

   name = "ABC Rawal";

   uid = 10000048171452;

} )

This is the code I'm using to do that:

-(void)request:(FBRequest*)request didLoad:(id)result {

    NSLog(@"source id key is %@", result);

}

I have to get name and uid separately. How can I retrieve those value from result?

we can't know for sure since you are not showing the definition of the class of result. It could be a dictionary in that case it would be: NSString *name = [result objectForKey:@"name"]; and int uid = [[result objectForKey:@"uid"] intValue]; but I am just guessing. — nacho4d
– nacho4d, Commented Jun 21, 2011 at 6:09
Inside of function there is one statement like NSArray* users = result; so I think result is NSArray variable. — Ajay_Kumar
– Ajay_Kumar, Commented Jun 21, 2011 at 6:18
@nacho The output is either a string (unlikely) or an array. Notice the parentheses — they’re the NeXTSTEP representation of an array, and the one used by -[NSArray description]. — user557219
– user557219, Commented Jun 21, 2011 at 6:21

user557219 · Accepted Answer · 2011-06-21 06:16:28Z

result is an array comprised of dictionaries. In your example, the array has only one element.

If you want only the first element in the array, then:

if ([result count] > 0) {
    NSDictionary *person = [result objectAtIndex:0];
    NSString *personName = [person objectForKey:@"name"];
    NSString *personUID = [person objectForKey:@"uid"];
    …
}

Or, if you want to iterate over all elements in the array — in case the array has more than one element — then:

for (NSDictionary *person in result) {
    NSString *personName = [person objectForKey:@"name"];
    NSString *personUID = [person objectForKey:@"uid"];
    …    
}

Note that from your output it’s not possible to know whether uid is a string or a number. The code above considers it’s a string; in case it’s a number, use:

NSInteger personUID = [[person objectForKey:@"uid"] integerValue];

or an appropriate integer type that can hold the range of possible values.

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