Basic Pie

The [ObservableObject], [ObservableProperty] and [RelayCommand] attributes come from the CommunityToolkit.Mvvm package, you can read more about it here.

This web site wraps every sample using a ContentPage instance, but LiveCharts controls can be used inside any container.

sample image

View model

using LiveChartsCore;
using LiveChartsCore.SkiaSharpView;
using CommunityToolkit.Mvvm.ComponentModel;
using System.Collections.Generic;
using LiveChartsCore.SkiaSharpView.Painting;
using SkiaSharp;
using LiveChartsCore.SkiaSharpView.VisualElements;
using LiveChartsCore.SkiaSharpView.Extensions;

namespace ViewModelsSamples.Pies.Basic;

public partial class ViewModel : ObservableObject
{
    // you can convert any array, list or IEnumerable<T> to a pie series collection:
    public IEnumerable<ISeries> Series { get; set; } =
        new[] { 2, 4, 1, 4, 3 }.AsPieSeries();

    // the expression above is equivalent to the next series collection:
    public IEnumerable<ISeries> Series2 { get; set; } =
        new[]
        {
            new PieSeries<int> { Values = new[]{ 2 } },
            new PieSeries<int> { Values = new[]{ 4 } },
            new PieSeries<int> { Values = new[]{ 1 } },
            new PieSeries<int> { Values = new[]{ 4 } },
            new PieSeries<int> { Values = new[]{ 3 } },
        };

    public LabelVisual Title { get; set; } =
        new LabelVisual
        {
            Text = "My chart title",
            TextSize = 25,
            Padding = new LiveChartsCore.Drawing.Padding(15),
            Paint = new SolidColorPaint(SKColors.DarkSlateGray)
        };
}

XAML

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage x:Class="MauiSample.Pies.Basic.View"
             xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:lvc="clr-namespace:LiveChartsCore.SkiaSharpView.Maui;assembly=LiveChartsCore.SkiaSharpView.Maui"
             xmlns:vms="clr-namespace:ViewModelsSamples.Pies.Basic;assembly=ViewModelsSamples"
             >
    <ContentPage.BindingContext>
        <vms:ViewModel/>
    </ContentPage.BindingContext>
    <lvc:PieChart
        Series="{Binding Series}"
        Title="{Binding Title}">
    </lvc:PieChart>
</ContentPage>

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