How to create a chart using Swift Charts and SwiftUI

Back in 2022, Apple introduced Swift Charts at the yearly Worldwide Developers Conference. Swift Charts is a powerful framework that allows you create interactive data visualizations. In this tutorial, we’re going to build a simple bar chart to display the number and genres of books you’ve read per year.

Data

We can get started by creating a new SwiftUI project on Xcode. Next, we’ll add a struct that will represent a single bar, we’ll call it BookStat.

Now we can create another struct that we will use as our data provider. You can create a new file or just add it in ContentView.swift for now, but the struct will look like so:

Note that in addition to the bookData list, we also created a simple Date extension to create a Date object from a given year.

Bar Chart

Now that our sample data is ready, we will display the bookData list using a bar chart. Note that the…