Example code that works from the updated page
(I should add that this code leaves in the fact that I made ProfitOverTime conform to Identifiable and the new code on the documentation page uses ForEach(departmentAProfit, id: \.date) instead.)
import SwiftUI
import Charts
struct ChartTests: View {
struct ProfitOverTime:Identifiable {
var date: Date
var profit: Double
var id = UUID()
}
static func months(forYear year:Int) -> [Date] {
var days:[Date] = []
var dateComponets = DateComponents()
//let year = Calendar.current.component(.year, from: Date())
dateComponets.year = year
dateComponets.day = 1
for i in 1...12 {
dateComponets.month = i
if let date = Calendar.current.date(from: dateComponets) {
days.append(date)
}
}
return days
}
static func dataBuilder(forYear year:Int) -> [ProfitOverTime]{
var data:[ProfitOverTime] = []
for month in months(forYear: year) {
let new = ProfitOverTime(date: month, profit: Double.random(in: 200...600))
data.append(new)
}
return data
}
let departmentAProfit: [ProfitOverTime] = Self.dataBuilder(forYear: 2021)
let departmentBProfit: [ProfitOverTime] = Self.dataBuilder(forYear: 2021)
var body: some View {
Chart {
ForEach(departmentAProfit) {
LineMark(
x: .value("Date", $0.date),
y: .value("Profit A", $0.profit),
series: .value("Company", "A")
)
.foregroundStyle(.blue)
}
ForEach(departmentBProfit) {
LineMark(
x: .value("Date", $0.date),
y: .value("Profit B", $0.profit),
series: .value("Company", "B")
)
.foregroundStyle(.green)
}
RuleMark(
y: .value("Threshold", 500.0)
)
.foregroundStyle(.red)
}
}
}
struct ChartTests_Previews: PreviewProvider {
static var previews: some View {
ChartTests()
}
}
Screenshot
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