Capturing Screenshots on Android

I am trying to capture screenshots on Android, they need to appear in the Android gallery. So far I have been able to use Application.CaptureScreenshot successfully to take screenshots, but it only saves them in the default folder and the images won't show up in the android gallery.

I don't mind the default folder if this just worked, but why doesn't the screenshot appear in the gallery? Do I need to refresh it somehow?

But the folder path is a mystery too... For some reason I cannot set custom folder at all, when I tried it in unity editor and set the path to a folder on my computer I only get "Failed to store screen shot" error. It doesn't work on android either. Here is my code:

 public void TakeScreenshot()
     {
         fileNumber = PlayerPrefs.GetInt ("FileNumber", 0);
         fileNumber++;
         PlayerPrefs.SetInt ("FileNumber", fileNumber);
         fileName = ("ScreenShot" + fileNumber + ".jpg");
         string myFolderLocation = "/storage/emulated/0/DCIM/UntitledProject/";
 
         if(!System.IO.Directory.Exists(myFolderLocation)){
             System.IO.Directory.CreateDirectory(myFolderLocation);
         }
 
         Application.CaptureScreenshot (myFolderLocation + fileName);
     }

This code is able to create the directory just fine, but it never saves anything there. Any help is appreciated!