Sorting NsMutable Array

Question

I am getting floor names and storing in _floorNames (NSMutableArray) by using

_floorNames=[conferenceHall floorDetails:office];


NSLog(@"floor names=%@",_floorNames);

This will print floor names like this.

 GROUND,
 THIRD,
 FIRST,
 SECOND

Now i want to sort that floor names NsMutableArray as

GROUND,
FIRST,
SECOND,
THIRD

I have used

 NSSortDescriptor *aa=[[NSSortDescriptor alloc]initWithKey:floor ascending:YES                                                           selector:@selector(localizedCaseInsensitiveCompare:)];

 NSArray *descriptors = [NSArray arrayWithObjects:aa, nil]; 
   a = [array sortedArrayUsingDescriptors:descriptors];

But it will crash my application. Any suggestions ...

Suggestions: #1: don't use the Xcode tag, it's inappropriate. #2: format your code, it's impossible to read. #3: ask a real question - I couldn't deduce what you expect to happen and what actually happens. — user529758
My floorNames mutableArray containes floor names like GROUND, THIRD, FIRST, SECOND. How to sort this mutableArray to get GROUND, FIRST, SECOND ,THIRD. — user2043033

Ravindhiran Ravindhiran · Accepted Answer · 2013-02-19T07:11:17

Try this,

NSArray *arrFloorNames=[[NSArray alloc]initWithObjects:@"GROUND",@"THIRD",@"FIRST",@"SECOND", nil];
arrFloorNames = [arrFloorNames sortedArrayUsingSelector:@selector(localizedCaseInsensitiveCompare:)];
NSLog(@"%@",arrFloorNames);

Sorting NsMutable Array

2 Answers