Sort array having object of class

Question

Hi I have an array having 100 element. and each element is of type class Data with the following members:

name
price
stock
description

How can I sort the array on based on the price member of class Data?

What have you tried so far? Have you looked at the NSArray class documentation? There are a bunch of methods for sorting elements. Have you looked the 'Collections Programming Topics' guide, which has descriptions and examples? — Abizern
– Abizern, Commented Nov 25, 2011 at 4:06
Yes, please read the NSArray documentation. Your answer is there, should you bother to read it. — Hot Licks
– Hot Licks, Commented Nov 25, 2011 at 4:13
This SO question seems pretty similiar. stackoverflow.com/questions/805547/… — SEG
– SEG, Commented Nov 25, 2011 at 5:26

aahsanali · Accepted Answer · 2011-11-25 05:38:41Z

1

NSSortDescriptor *priceDescriptor = [[[NSSortDescriptor alloc] initWithKey:@"price" ascending:YES] autorelease]; // ascending YES or NO depends on your requirement
NSArray *sortDescriptors = [NSArray arrayWithObject: priceDescriptor];
NSArray *sortedArray = [yourArray sortedArrayUsingDescriptors:sortDescriptors];

also see this

answered Nov 25, 2011 at 5:38

aahsanali

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Comments

GustyWind · Accepted Answer · 2011-11-25 04:12:29Z

0

if you have method for price the object within array class you can use NSComparisonResult:

- (NSComparisonResult) compareprice : (id) element
{
    return [price compare: [element price ]];
}

answered Nov 25, 2011 at 4:12

GustyWind

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