I'd like to change the location that screenshots created via File > Save Screen Shot in the iOS Simulator are saved from the desktop to a folder of my choice. How can this be done? Perhaps there's a user defaults value I could change, much like the one specifying the location of standard screenshots on OS X?
Simulator saves screen shot file on (logged-in user's) desktop and it's default path.
To change default path (with Xcode 9+), press and hold ⌥ Option (alt) button from keyboard, while you take a screen shot.
Or
Using Mac Keyboad: Press keys ⌥ Option + ⌘ + s all together.
It will show a dialog with file storage options and also allows to set/change default path.

You will not be able to do that.
An easy alternative could be (after changing the default screenshot directory):
- press cmd+shft+4
- press spacebar
- Click your iPad/iPhone simulator window
It can easily be done using the new command line interface (since Xcode 8.2)
xcrun simctl io booted screenshot ~/Desktop/screenshot.png
Replace ~/Desktop/screenshot.png
with your folder location and it will be saved on there.
Further information in this blog: https://medium.com/@hollanderbart/new-features-in-xcode-8-2-simulator-fc64a4014a5f#.bzuaf5gp0
You can use Automator to create a Folder Action workflow to automatically move screen shots from Desktop to your desired folder.
Steps: Filter items containing iOS Simulator Screen Shot in name. Then move those items to your chosen folder.
Here's a sample https://github.com/chrisamanse/iOS-Simulator-Screenshot-Mover
Just Press Option + command + s together and it will prompt you a dialog where you want to save screenshot.
来源:https://stackoverflow.com/questions/23661097/change-the-location-of-screen-shots-saved-by-the-ios-simulator