Deprecated NSKeyValueObserving Methods
A method identified as deprecated has been superseded and may become unsupported in the future.
Deprecated in OS X v10.5 and later
Configures the receiver to post change notifications for a given property if any of the properties specified in a given array changes. (Deprecated in OS X v10.5 and later. You should use the method
The names of the properties upon which the value of the property identified by dependentKey depends.
The name of a property whose value depends on the properties specified by keys.
Invocations of will- and did-change KVO notification methods for any key in keys will automatically invoke the corresponding change notification methods for dependentKey. The receiver will not receive
didChange messages to generate the notifications.
Dependencies should be registered before any instances of the receiving class are created, so you typically invoke this method in a class's
initialize method, as illustrated in the following example.
[self setKeys:[NSArray arrayWithObjects:@"firstName", @"lastName", nil]
- Deprecated in OS X v10.5 and later.