When I create a new directory (example: values-da) in my “res” directory, it does not show my created directory. No matter what the directory is named. it just won’t showing. I re-created the directory again and it says that the directory already exist. I closed the program and open it again but my created directory is still not showing.
That is because you do not have any resources in that directory and you are using the Android project view.
Click on the “Android” drop-down that is shown in the upper-left corner of your screenshot. Change it to “Project”. that will give you an accurate depiction of the directory structure of your project.