I’ve mentioned a few libraries to aid in implementing complex gestures such as the $P multistroke and unistroke gesture recognizer but I haven’t really mentioned anything to help with creating complex gesture recognizers.
Here’s a tool that should greatly aid in the creation and debugging of complex UIGestureRecognizers called GestureLab from Mark Dalrymple.
GestureLab provides a view allowing you to input your gestures with colors changing for the different movements., a real time log of different gesture events ,and the results with different gesture recognizers in the top view.
There’s also a really cool timeline that allows you to step backwards to different points in time when the gesture was drawn.
You can find GestureLab on Github here.
Mark’s also written a guide as to how he was able to perform the real-time logging in the bottom left view that you can find on the Big Nerd ranch blog here.
A very nice tool if you’re looking to create some complex gestures.
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