Swift Charts with SwiftUI — WWDC22
At WWDC 2022, Apple unveiled Swift Charts, a library to plot graphs and charts. Until now, we were dealing with 3rd party libraries to plot data.
By using SwiftUI’s declarative syntax, we can visualize any kind of data with the chart style we want. Swift Charts has a lot of flexibility and allows a wide variety of presentations.
For this article we’ll follow an iOS project that includes all data visualization types announced by Apple.
What does Swift Charts offer?
At WWDC 2022, Apple unveiled Swift Charts, a library to plot graphs and charts. Until now, we were dealing with 3rd party libraries to plot data.
By using SwiftUI’s declarative syntax, we can visualize any kind of data with the chart style we want. Swift Charts has a lot of flexibility and allows a wide variety of presentations.
For this article we’ll follow an iOS project that includes all data visualization types announced by Apple.
What does Swift Charts offer?
Before we get down to coding, let’s examine the Charts library. Here is Apple’s definition:
Swift Charts is a powerful and concise SwiftUI framework for transforming your data into informative visualizations. With Swift Charts, you can build effective and customizable charts with minimal code. This framework provides marks, scales, axes, and legends as building blocks that you can combine to develop a broad range of data-driven charts.
Mark
Apple defines items that visually represent data as Mark. Available Mark types are: Bar, Point, Line, Area, Rule, Rectangle.
Scale
As the name suggests, you can scale variables of your charts using Scales. For example, the x or y axis range of the chart, the colors of the Marks, the range of the plot.
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