How to reorder elements (NSString) of an NSArray alphabetically?

Question

How to reorder elements (NSString) of an NSArray alphabetically?

Answer 1

NSSortDescriptor is overkill to sort an array whose elements are just NSString instances.

NSArray *sortedArray = [unsortedArray sortedArrayUsingSelector: @selector(compare:)];

If, instead of a new array instantiated with its elements sorted, you want to have the elements of an NSMutableArray instance reordered, there's a method for that:

[unsortedMutableArray sortUsingSelector: @selector(compare:)];

Use an NSSortDescriptor instance when you have a large object managing the array for you, like an NSArrayController or an NSTableView. If that's the case, and the elements are just instances of NSString, @iHS's answer would be correct.

Answer 2

you can use sortDescriptor

 NSSortDescriptor *descriptor = [[[NSSortDescriptor alloc] initWithKey:@"yourKey" ascending:YES selector:@selector(caseInsensitiveCompare:)] autorelease];
NSArray * sortedArray =
    [yourArray sortedArrayUsingDescriptors:descriptor];