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animate a determinate progress indicator's doubleValue (Blog Post)

NSProgressIndicator+ESSProgressIndicatorCategory Animation Example

First, the License Agreement

  1. You can use the code in your own products.
  2. You can modify the code as you wish, and use the modified code in your products.
  3. You can redistribute the original, unmodified code, but you have to include the full license text below.
  4. You can redistribute the modified code as you wish (without the full license text below).
  5. In all cases, you must include a credit mentioning Matthias Gansrigler as the original author of the source.
  6. I’m not liable for anything you do with the code, no matter what. So be sensible.
  7. You can’t use my name or other marks to promote your products based on the code.
  8. If you agree to all of that, go ahead and download the source. Otherwise, don’t.

How To Use NSProgressIndicator+ESSProgressIndicatorCategory

Add the category’s .h and .m files to your project, import it where you need it and update your progress indicator’s doubleValue by calling -animateToDoubleValue: with the doubleValue you desire to animate to.

Please refer to the sample project and/or the (Blog Post) for more information.


This code has been tested on OS X Yosemite 10.10.3. It might work with earlier versions of the operating system.
Developed with Xcode 6.3.1


The framework and code is provided as-is, but if you need help or have suggestions, you can contact me anytime at or @eternalstorms on twitter

For other Open Source projects of mine, please visit

I'd like to hear from you

If you use NSProgressIndicator+ESSProgressIndicatorCategory in one of your projects, please be sure to let me know! I'd love to hear about your apps and mention them here on this project page :) !!


animate a determinate progress indicator's doubleValue






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