Simple tutorial to create a visual Stopwatch with CoreAnimation and CALayers.
https://medium.com/macoclock/harnessing-the-power-of-coreanimations-in-your-ios-project-627c3ef1a3cc
Simple tutorial to create a visual Stopwatch with CoreAnimation and CALayers.
https://medium.com/macoclock/harnessing-the-power-of-coreanimations-in-your-ios-project-627c3ef1a3cc