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wemu / ChartView

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Swift package for displaying charts effortlessly.

V2 Beta 1 is released, if you would like to try it out you can find a demo project here

iOS 14 WidgetKit support is coming. In V2 I will update current charts and possibly extend with some new chart types to provide the best support for building informative and beautiful widgets for the new home screen 🥳 Stay tuned!

SwiftUI Charts


A version 2.0 is coming soon!!! 🎉🎉🎉, so please hold off your PRs for a while. I'm writing a new code base with more sleek code architecture with an option for easier expansion. I'll make beta releases so you can test betas. If you'd like to contribute you can find tickets for the new version in the Issues under the v2 tag, please read more at: https://github.com/AppPear/ChartView/pull/89

It supports:

  • Line charts
  • Bar charts
  • Pie charts


Join our Slack channel for day to day conversation and more insights:

Slack invite link


It requires iOS 13 and Xcode 11!

In Xcode go to File -> Swift Packages -> Add Package Dependency and paste in the repo's url: https://github.com/AppPear/ChartView


import the package in the file you would like to use it: import SwiftUICharts

You can display a Chart by adding a chart view to your parent view:


Added an example project, with iOS, watchOS target: https://github.com/AppPear/ChartViewDemo

Line charts

LineChartView with multiple lines! First release of this feature, interaction is disabled for now, I'll figure it out how could be the best to interact with multiple lines with a single touch. Multiine Charts


MultiLineChartView(data: [([8,32,11,23,40,28], GradientColors.green), ([90,99,78,111,70,60,77], GradientColors.purple), ([34,56,72,38,43,100,50], GradientColors.orngPink)], title: "Title")

Gradient colors are now under the GradientColor struct you can create your own gradient by GradientColor(start: Color, end: Color)

Available preset gradients:

  • orange
  • blue
  • green
  • blu
  • bluPurpl
  • purple
  • prplPink
  • prplNeon
  • orngPink

Full screen view called LineView!!!

Line Charts

 LineView(data: [8,23,54,32,12,37,7,23,43], title: "Line chart", legend: "Full screen") // legend is optional, use optional .padding()

Adopts to dark mode automatically

Line Charts

You can add your custom darkmode style by specifying:

let myCustomStyle = ChartStyle(...)
let myCutsomDarkModeStyle = ChartStyle(...)
myCustomStyle.darkModeStyle = myCutsomDarkModeStyle

Line chart is interactive, so you can drag across to reveal the data points

You can add a line chart with the following code:

 LineChartView(data: [8,23,54,32,12,37,7,23,43], title: "Title", legend: "Legendary") // legend is optional

Turn drop shadow off by adding to the Initialiser: dropShadow: false

Bar charts

Bar Charts

[New feature] you can display labels also along values and points for each bar to descirbe your data better! Bar chart is interactive, so you can drag across to reveal the data points

You can add a bar chart with the following code:

Labels and points:

 BarChartView(data: ChartData(values: [("2018 Q4",63150), ("2019 Q1",50900), ("2019 Q2",77550), ("2019 Q3",79600), ("2019 Q4",92550)]), title: "Sales", legend: "Quarterly") // legend is optional

Only points:

 BarChartView(data: ChartData(points: [8,23,54,32,12,37,7,23,43]), title: "Title", legend: "Legendary") // legend is optional

ChartData structure Stores values in data pairs (actually tuple): (String,Double)

  • you can have duplicate values
  • keeps the data order

You can initialise ChartData multiple ways:

  • For integer values: ChartData(points: [8,23,54,32,12,37,7,23,43])
  • For floating point values: ChartData(points: [2.34,3.14,4.56])
  • For label,value pairs: ChartData(values: [("2018 Q4",63150), ("2019 Q1",50900)])

You can add different formats:

  • Small ChartForm.small
  • Medium ChartForm.medium
  • Large ChartForm.large
BarChartView(data: ChartData(points: [8,23,54,32,12,37,7,23,43]), title: "Title", form: ChartForm.small)

For floating point numbers, you can set a custom specifier:

BarChartView(data: ChartData(points:[1.23,2.43,3.37]) ,title: "A", valueSpecifier: "%.2f")

For integers you can disable by passing: valueSpecifier: "%.0f"

You can set your custom image in the upper right corner by passing in the initialiser: cornerImage:Image(systemName: "waveform.path.ecg")

Turn drop shadow off by adding to the Initialiser: dropShadow: false

You can customize styling of the chart with a ChartStyle object:


  • background color
  • accent color
  • second gradient color
  • text color
  • legend text color
 let chartStyle = ChartStyle(backgroundColor: Color.black, accentColor: Colors.OrangeStart, secondGradientColor: Colors.OrangeEnd, chartFormSize: ChartForm.medium, textColor: Color.white, legendTextColor: Color.white )
 BarChartView(data: [8,23,54,32,12,37,7,23,43], title: "Title", style: chartStyle)

You can access built-in styles:

 BarChartView(data: [8,23,54,32,12,37,7,23,43], title: "Title", style: Styles.barChartMidnightGreen)

All styles available as a preset:

  • barChartStyleOrangeLight
  • barChartStyleOrangeDark
  • barChartStyleNeonBlueLight
  • barChartStyleNeonBlueDark
  • barChartMidnightGreenLight
  • barChartMidnightGreenDark


Custom Charts

You can customize the size of the chart with a ChartForm object:


  • .small
  • .medium
  • .large
  • .detail
BarChartView(data: [8,23,54,32,12,37,7,23,43], title: "Title", form: ChartForm.small)

WatchOS support for Bar charts:

Pie Charts

Pie charts

Pie Charts

You can add a pie chart with the following code:

 PieChartView(data: [8,23,54,32], title: "Title", legend: "Legendary") // legend is optional

Turn drop shadow off by adding to the Initialiser: dropShadow: false


clone from https://github.com/AppPear/ChartView expand collapse


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