How to have folders first before any file in finder (Mac) programmatically?

Question

I am new to Mac OS. I want to have the folders first before any other file in finder through my cocoa app.

Can anyone suggest me a way of doing this like xtraFinder, PathFinder etc apps do?

I have gone through the followings links. One way is this:

http://hints.macworld.com/article.php?story=2011072120153685 http://mygeekdaddy.net/2013/10/24/change-mavericks-finder-app-sort-order/

And the other way I got is to drag the folders to first in the spotlight (in system preferences) then sort by kind.

But in both ways I don't know how to do this programmatically. Can anyone tell me step by step how to do this through my app?

Answer 1

OS X Sierra finally has an option for this:

• Open Finder
• Go to Finder Menu -> Preferences
• Go to "Advanced" tab
• Check the "Keep folders on top when sorting by name"

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Now, When you sort by name, can see folders at top of files (like as windows)

Good Luck ;)