Up to date for latest Xcode and iOS

[DouglasHeriot]

I miss graffiti, so found this and was curious how much worked. So, I fixed the compile errors for updated Swift in Xcode 7.3.1.

Looks like a fun project if anyone had time.

[dov]

Does this still work? I'm a big grafitti fan, and I'm considering buying an iPad, and I wonder whether this works on the latest iPads?

(I'm actually working on a project for implementing grafitti through a neural network for latin and hebrew characters. I have already built a basic input method for Android that uses android gestures, which works reasonably well, but is not perfect. My idea is to replace the gesture input by a Tensor Flow lite model.)