Some time ago I mentioned a nice guide explaining how one could go about the recognition of complex path gestures.
Here’s an open source library from Didier Brun that provides a nice Swift based syntax with easy path recording and recognition of advanced gestures called DBPathRecognizer.
To recognize gestures DBPathRecognizer uses an 8 direction path recognizer with the ability to specify a max gesture cost to ignore to ignore overly complex gestures, a special syntax for filtering path’s in case some gestures get confused with each other because they are too similar and more.
This animation from the readme shows DBPathRecognizer in action:
You can find DBPathRecognizer on Github here.
A nice library for recognizing complex gestures.
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