通过自定义对象中包含的字典对自定义对象数组进行排序:如何?

- (NSArray *)sortedItems:(NSArray*)items;
{
    NSSortDescriptor *sortNameDescriptor = 
                        [[[NSSortDescriptor alloc] 
                          initWithKey:@"Name" ascending:NO] 
                          autorelease];

    NSArray *sortDescriptors = 
                        [[[NSArray alloc] 
                          initWithObjects:sortNameDescriptor, nil] 
                          autorelease];

    return [items sortedArrayUsingDescriptors:sortDescriptors];
}

//Sort an array which holds different dictionries - STRING BASED   - Declare it in the .h
    - (NSArray *)sortStringsBasedOnTheGivenField:(id)dictionaryKey arrayToSort:(NSMutableArray *)arrayToHoldTemp ascending:(BOOL)ascending {
        NSSortDescriptor *nameDescriptor = [[NSSortDescriptor alloc] initWithKey:dictionaryKey ascending:ascending selector:@selector(localizedCaseInsensitiveCompare:)] ;
        NSArray *descriptors = [NSArray arrayWithObject:nameDescriptor];
        [arrayToHoldTemp sortUsingDescriptors:descriptors];
        [nameDescriptor release];
        return arrayToHoldTemp;
    }

用法:

self.mainArrayForData = [NSArray arrayWithArray:[self sortNumbersBasedOnTheGivenField:@"Name" arrayToSort:arrayWhichContainsYourDictionries ascending:YES]];