Question

When adding objects to an NSArray using “initWithObjects” can anyone confirm for me that the items are retained. I am pretty sure they are, but can’t find it mentioned anywhere with regards to initWithObjects?

// CREATE DRINKS
Coffee *drink1 = [[Coffee alloc] initWithName:@"Flat White"];
Coffee *drink2 = [[Coffee alloc] initWithName:@"Cappucino"];
Coffee *drink3 = [[Coffee alloc] initWithName:@"Latte"];
Coffee *drink4 = [[Coffee alloc] initWithName:@"Mocha"];
Coffee *drink5 = [[Coffee alloc] initWithName:@"Hot Chocolate"];

// SET ARRAY
NSArray *tempArray = [[NSArray alloc] initWithObjects:drink_1, drink_2, drink_3, drink_4, drink_5, nil];
[self setCoffeeList:tempArray];

// CLEAN UP
[drink_1 release];
[drink_2 release];
[drink_3 release];
[drink_4 release];
[drink_5 release];
[tempArray release];
[super viewDidLoad];

cheers Gary

Answer 1

initWithObjects retains all items in the array.

initWithObjects: count:

• (id) initWithObjects: (id*)objects count: (NSUInteger)count;
  Availability: OpenStep

This is a designated initialiser for the class.
Subclasses must override this method.
This should initialize the array with count (may be zero) objects.
Retains each object placed in the array.
Calls -init (which does nothing but maintain MacOS-X compatibility), and needs to be re-implemented in subclasses in order to have all other initialisers work.