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Article Written By:
Johann Dowa

Open Source Libraries For Easily Adding Rotary Knob Controls In Your iOS Apps

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The other day on twitter I was asked about available libraries for creating rotary knob controls within iOS apps.

In the past I mentioned a couple of different libraries including rotary knob controls which have not been kept up to date by their developers.  So here are a couple of up to date libraries.

The first library is DCControl from Domestic Cat Software which allows you to easily create customizable slider controls and rotary knob controls.  In the past I mentioned their beautiful custom rounded switch component.

You can download the rotary knob control here.

As you can see in the screenshot below you can adjust the coloring size and shape of the control easily.

The second library is from iOS Apprentice author Matthijs Hollemans. This is a very simple library that handles things properly if you are just looking for a no-nonsense rotary knob control.

You can find the repository here.

Here’s a screenshot:

The third library is for those using HTML5, and this solution was created to emulate the knob controls in Apple’s Garageband.

You can test it out online here, and the Github repository is here.

If you are looking to add a rotary knob control into your apps these libraries should put you on the right track.


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