按字母数字属性排序自定义对象的NSArray的最佳方法

Question

As I say in the title, I have an NSArray of objects which in turn have an NSString property with this format (I provide a kind of regex to explain): [1-9]+[AZ]*

I'd like to sort such array firstly by the first numerical characters, and then by the last alphabetical characters, for example: if I have 6 objects with the strings [@"1", @"1A", @"3", @"2D", @"10B", @"1B"], I'd want to get the sorted array [@"1", @"1A", @"1B", @"2D", @"3", @"10B"].

Since I want to sort by a property that is an NSString , how could I achieve that?

Thanks in advance

Answer 1

There is a very easy approach available to do the same stuff:

NSArray *unsortedArray =  @[@"1", @"1A", @"3", @"2D", @"10B", @"1B"];
NSArray *sortedArray  = [unsortedArray sortedArrayUsingSelector:@selector(localizedStandardCompare:)];

NSLog(@"%@",sortedArray);

Enjoy ur coding....:)