Instance Method

objectEnumerator

Returns an enumerator object that lets you access each value in the dictionary.

Declaration

- (NSEnumerator<ObjectType> *)objectEnumerator;

Return Value

An enumerator object that lets you access each value in the dictionary.

Discussion

The following code fragment illustrates how you might use the method.

NSEnumerator *enumerator = [myDictionary objectEnumerator];
id value;
 
while ((value = [enumerator nextObject])) {
    /* code that acts on the dictionary’s values */
}

If you use this method with instances of mutable subclasses of NSDictionary, your code should not modify the entries during enumeration. If you intend to modify the entries, use the allValues method to create a “snapshot” of the dictionary’s values. Work from this snapshot to modify the values.

Special Considerations

It is more efficient to use the fast enumeration protocol (see NSFastEnumeration). Fast enumeration is available in macOS 10.5 and later and iOS 2.0 and later.

See Also

Enumerating Dictionaries

- keyEnumerator

Provides an enumerator to access the keys in the dictionary.

- enumerateKeysAndObjectsUsingBlock:

Applies a given block object to the entries of the dictionary.

- enumerateKeysAndObjectsWithOptions:usingBlock:

Applies a given block object to the entries of the dictionary, with options specifying how the enumeration is performed.

- countByEnumeratingWithState:objects:count:

Returns by reference a C array of objects over which the sender should iterate.