Objective C - Sort an array of string
you need to use
-[NSArray sortedArrayUsingSelector:]
or
-[NSMutableArray sortUsingSelector:]
and pass @selector(compare:)
as the parameter.
here's a link to the answer Sort NSArray of date strings or objects
Here's what I ended up using - works like a charm:
[categoryArray sortedArrayWithOptions:0
usingComparator:^NSComparisonResult(id obj1, id obj2)
{
id<SelectableCategory> cat1 = obj1;
id<SelectableCategory> cat2 = obj2;
return [cat1.name compare:cat2.name options:NSCaseInsensitiveSearch];
}];
SelectableCategory
is just a @protocol SelectableCategory <NSObject>
defining the category with all its properties and elements.
For just sorting array of strings:
sorted = [array sortedArrayUsingSelector:@selector(compare:)];
For sorting objects with key "name":
NSSortDescriptor *sort = [NSSortDescriptor sortDescriptorWithKey:@"name" ascending:YES selector:@selector(compare:)];
sorted = [array sortedArrayUsingDescriptors:@[sort]];
Also, instead of compare:
you can use:
caseInsensitiveCompare:
localizedCaseInsensitiveCompare: