NSArray of strings sort issue [duplicate]

Question

So i have the following code:

NSArray *pathArray = @[@"path/Documents/page9.png",
    @"path/Documents/page8.png",
    @"path/Documents/page10.png",
    @"path/Documents/page11.png",
    @"path/Documents/page0.png",
    @"path/Documents/page12.png",
    @"path/Documents/page6.png",
    @"path/Documents/page4.png",
    @"path/Documents/page5.png",
    @"path/Documents/page1.png",
    @"path/Documents/page7.png",
    @"path/Documents/page3.png",
    @"path/Documents/page2.png"];

If I now sort the array using:

[pathArray sortUsingSelector:@selector(caseInsensitiveCompare:)];

The Array is sorted the wrong way

Result:

pathArray: (
    "path/Documents/page0.png",
    "path/Documents/page1.png",
    "path/Documents/page10.png",
    "path/Documents/page11.png",
    "path/Documents/page12.png",
    "path/Documents/page2.png",
    "path/Documents/page3.png",
    "path/Documents/page4.png",
    "path/Documents/page5.png",
    "path/Documents/page6.png",
    "path/Documents/page7.png",
    "path/Documents/page8.png",
    "path/Documents/page9.png"}

The elements with the components "page10.png", "page11.png" and "page12.png" should be the last three elements. Does another selector exist that covers this issue?

If not how could this be done?

Answer 1

You can implement your own comparing method using this:

[pathArray sortUsingComparator:^(id one, id two) {
    return [one compare:two options:NSCaseInsensitiveSearch | NSNumericSearch];
}