[SwiftUI] Swift Charts / 차트

Swift Charts

Construct and customize charts on every Apple platform.

iOS 16 버전 부터 등장한 chart 입니다.

charts

Swift Charts | Apple Developer Documentation

Hello Swift Charts - WWDC22 - Videos - Apple Developer

SwiftChartsExample Code 입니다. 

 

Visualizing your app’s data | Apple Developer Documentation

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SwiftChartsExample Code는 WWDC 2023 아래 링크에서 자세한 설명을 들을 수 있습니다.

Visualizing your app’s data | Apple Developer Documentation

 

ChartsExample의 Overview입니다. Total Sales는 BarMark로 이루어져있고 (상단) Most Sold Style은 SectorMark (중단) LineMark와  PointMark (하단)

 

Stacked bar chart 

Chart(data, id: \.name) { element in
  BarMark(
    x: .value("Sales", element.sales),
    stacking: .normalized
  )
  .foregroundStyle(by: .value("Name", element.name))
}
.chartXAxis(.hidden)

 

Pie chart

Chart(data, id: \.name) { element in
  SectorMark(
    angle: .value("Sales", element.sales),
    angularInset: 1.5
  )
  .foregroundStyle(by: .value("Name", element.name))
}

 

Pie chart with angular inset

Chart(data, id: \.name) { element in
  SectorMark(
    angle: .value("Sales", element.sales),
    angularInset: 1.5
  )
  .foregroundStyle(by: .value("Name", element.name))
}

 

Donut chart

Chart(data, id: \.name) { element in
  SectorMark(
    angle: .value("Sales", element.sales),
    innerRadius: .ratio(0.618),
    angularInset: 1.5
  )
  .cornerRadius(5)
  .foregroundStyle(by: .value("Name", element.name))
}

 

Donut chart with text in center

Chart(data, id: \.name) { element in
  SectorMark(
    angle: .value("Sales", element.sales),
    innerRadius: .ratio(0.618),
    angularInset: 1.5
  )
  .cornerRadius(5)
  .foregroundStyle(by: .value("Name", element.name))
}
.chartBackground { chartProxy in
  GeometryReader { geometry in
    let frame = geometry[chartProxy.plotAreaFrame]
    VStack {
      Text("Most Sold Style")
        .font(.callout)
        .foregroundStyle(.secondary)
      Text(mostSold)
        .font(.title2.bold())
        .foregroundColor(.primary)
    }
    .position(x: frame.midX, y: frame.midY)
  }
}

 

Line chart

struct LocationDetailsChart: View {
  ...

  var body: some View {
    Chart {
      ForEach(data) { series in
        ForEach(series.sales, id: \.day) { element in
          LineMark(
            x: .value("Day", element.day, unit: .day),
            y: .value("Sales", element.sales)
          )
        }
        .foregroundStyle(by: .value("City", series.city))
        .symbol(by: .value("City", series.city))
        .interpolationMethod(.catmullRom)
      }
    }
    ...
  }
}