how to sort an NSArray using compare:options

Question

I have an NSArray containing numbers as NSString objects. ie.

[array addObject:[NSString stringWithFormat:@\"%d\", 100]];

How do I sort th

Answer 1

Since your objects are numbers, instead of using NSString objects, you could use NSNumber objects (easily turned into strings via the stringValue property) and sort the array using sortedArrayUsingDescriptors:.

For example:

NSSortDescriptor *sorter = [[NSSortDescriptor alloc] initWithKey:@"self" ascending:YES];
NSArray *sorters = [[NSArray alloc] initWithObjects:sorter, nil];
[sorter release];
NSArray *sortedArray = [anArray sortedArrayUsingDescriptors:sorters];
[sorters release];