I want to make an editor on iOS which will record touch positions into a file. That file (in the
.plist format) will eventually be used for positions in my Mac connect-the-dots game.
Can I save one
.plist file to my Mac from an iOS app?
No, you cannot do this directly.
You can, however, rely on a standard method of transporting data between machines: the internet. Probably the most straightforward option would be to use either iCloud storage containers or Dropbox's API. Both APIs provide a way you can save files on one device and access them later from another device.
If you want something more "real-time" you could establish manual socket connections between your editor and game and transfer the data that way (at that point you probably don't want to bother sending a whole
.plist file, just send the position updates you need).