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Capturing Signatures on iOS

DZone's Guide to

Capturing Signatures on iOS

· Mobile Zone
Free Resource

Download this comprehensive Mobile Testing Reference Guide to help prioritize which mobile devices and OSs to test against, brought to you in partnership with Sauce Labs.

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.

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Handy if you ever need it!

h/t: ManiacDev!

Analysts agree that a mix of emulators/simulators and real devices are necessary to optimize your mobile app testing - learn more in this white paper, brought to you in partnership with Sauce Labs.

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Published at DZone with permission of Alex Curylo, DZone MVB. See the original article here.

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