Capturing Signatures on iOS

this is a nifty little piece to bookmark just in case you ever need to do any nice smooth line capturing:

capture a signature on ios

the square engineering blog has a great article on smoother signatures for android , but i didn’t find anything specifically about ios. so, what is the best way to capture a users signature on an ios device?

although i didn’t find any articles on signature capture, there are good implementations on the app store. my target user experience was the ipad application paper by 53 , a drawing application with beautiful and responsive brushes.

all code is available in the github repository: signaturedemo …

… here is an example of the final output using quadratic bézier curves, and velocity based stroke thickness creating a visually appealing and natural signature.

handy if you ever need it!

h/t: maniacdev !