Sorting an NSArray in reverse order

Question

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

Just wondering how I can sort this array of numbers in descending order?

Answer 1

Either use the method that allows you to pass a block as a comparator and implement a comparator that reverses the objects (returns NSOrderedAscending for NSOrderedDescending and vice versa)....

... or:

NSArray *reversed = [[[myArray sortedArrayUsingSelector:@selector(compare:)] reverseObjectEnumerator] allObjects];

Sorry. Derped the most important part.

Answer 2

Use NSSortDescriptor

NSSortDescriptor* sortOrder = [NSSortDescriptor sortDescriptorWithKey: @"self" ascending: NO];
NSArray *temp = [myArray sortedArrayUsingDescriptors: [NSArray arrayWithObject: sortOrder]];