![]() ![]() Note: This tutorial is the first in a three-part series. This app will be named Flo, and here it is in its completed glory: As data accumulate, the app will create a graph displaying your weekly consumption. ![]() ![]() With it, every time you polish off a refreshing glass of H 2O, you tap a counter button. In this tutorial, you’ll create an app to track your drinking habits. Did you down three glasses this afternoon or two? Did you have your water bottle at your desk yesterday or the day before? But after a few days, you realize how easy it is to lose track. Imagine a doctor recommends you drink eight glasses of water a day. It’s time to learn Core Graphics! Getting Into the Flo ![]() So sit back and relax with your favorite beverage. By the end, you’ll be able to create stunning graphics for your apps. It starts slow and eases you in with fun, engaging exercises. It’s a big, powerful application programming interface (API) with many tools to master and cool features like and never fear! This three-part series takes a modern approach to Core Graphics. Alternatively, you could use Core Graphics to create an image that scales crisply for any device size.Ĭore Graphics is Apple’s vector drawing framework. That plan, however, lacks strategy and sounds time-consuming. You could give it a makeover by drawing several sizes of custom control images in Photoshop and hope Apple doesn’t release a retina screen. It works fine, but the interface lacks style and grace. Update note: Andrew Kharchyshyn updated this tutorial for iOS 13, Swift 5 and Xcode 11. ![]()
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