I’m trying to implement a gauge animation using (+ and – buttons) on iphone, but i have no idea where to start? Any help is really welcome. See the image below (this is what I’m trying to do). Thanks for your help.
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Here is some open source code (with an example) that implements the gauge view. You of course would still need to do the buttons yourself, and possible add a different visual style.
http://www.cocoacontrols.com/platforms/ios/controls/meterview