Sorting an Array

Question

I have an array containing all string values. Contents of the array are order_id, waypoint_x, waypoint_y. How do I sort it based on order_id and have the results like 1, 2, 3, 4.... (i.e. as if the field was an integer type and string)

When I use the waypoints as the array is at the moment the results come out 1, 10, 11, 12...

Regards, Stephen

What code are you using now to sort?

Carl Norum
– Carl Norum

2010-09-16 17:34:13 +00:00
Commented Sep 16, 2010 at 17:34 — Carl Norum
– Carl Norum, Commented Sep 16, 2010 at 17:34

Community · Accepted Answer · 2017-05-23 12:19:43Z

2

If you check the documentation of NSArray, you'll see there are different methods for sorting the array: sortedArrayUsingFunction, sortedArrayUsingSelector, sortedArrayUsingComparator, etc.

There's a nice example of how to use sortedArrayUsingFunction to sort with integer values in the answer to this question: Sorting an array of doubles or CLLocationDistance values on the iPhone

edited May 23, 2017 at 12:19

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answered Sep 16, 2010 at 17:37

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