Sort NSArray based on multiple properties

Question

Here's the problem i have :- I have an array

Item1,
Item2,
Item3,
Item4,
Item5,
Item6,
Item7,
....,Item11

I need to sort this array in that specific order ,ofcourse all the values are of type 'NSString'

if i use

sortedArrayUsingSelector:@selector(caseInsensitiveCompare:)

it sorts it like this:-

Item1,
Item10,
Item11,
Item2,
Item3,
Item4,
Item5,
Item6,
Item7,
Item8,
Item9

I can manually extract the numeric value from this but i thought there may be a better way to do this perhaps by using 'NSComparator'.

possible duplicate of [How to do a natural sort on an NSArray?](http://stackoverflow.com/questions/2846301/how-to-do-a-natural-sort-on-an-nsarray) — Aravindhan, Jul 10 '12 at 06:39

score 2 · Accepted Answer · edited Jul 10 '12 at 06:52

2

Use it like this:

NSArray *arry = [[NSArray alloc] initWithObjects:@"Item1",@"Item2",@"Item3",@"Item4",@"Item5",@"Item11",@"Item10",@"Item6", nil];
NSArray *sortedStrings = [arry sortedArrayUsingSelector:@selector(localizedStandardCompare:)];
NSLog(@"sortedStrings---%@",sortedStrings);

edited Jul 10 '12 at 06:52

Rui Peres

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answered Jul 10 '12 at 06:44

Narayana Rao Routhu

6,303
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score 1 · Answer 2 · answered Jul 10 '12 at 06:40

1

NSInteger sortFile(id a, id b, void* context) {
    return [a compare:b options:NSNumericSearch];
}

[yourArray sortedArrayUsingFunction:mySort context:nil];

answered Jul 10 '12 at 06:40

msk

8,885
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score 1 · Answer 3 · answered Jul 10 '12 at 06:44

This code works for me:

NSArray *array = [NSArray arrayWithObjects:@"Item1",
                  @"Item10",
                  @"Item11",
                  @"Item2",
                  @"Item3", nil];

array = [array sortedArrayUsingComparator:^NSComparisonResult(NSString *str1, NSString *str2) {
    return [str1 compare:str2 options:(NSNumericSearch)];
} ];

NSLog(@"%@", array);

Ravi Kumar Karunanithi · Answer 4 · 2012-07-10T06:54:23.733

0

Try this:

 NSArray *sortedStrings = [yourArray sortedArrayUsingSelector:@selector(localizedStandardCompare:)];

For more sortedArrayUsingSelector

edited Jul 10 '12 at 06:54

answered Jul 10 '12 at 06:37

Ravi Kumar Karunanithi

2,151
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score 0 · Answer 5 · answered Jul 10 '12 at 06:39

0

You can implement whatever function you want if you do it using sortedArrayUsingFunction:context:

answered Jul 10 '12 at 06:39

borrrden

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Sort NSArray based on multiple properties

5 Answers5