ListPageViewModel.cs

using System;
using System.Collections.ObjectModel;
using Xamarin.Forms;

namespace SampleApp.ViewModels
{
    public class ListPageViewModel
    {
        public ObservableCollection<GroupedAPIFunctionality> APIList { get; set; }
        public ListPageViewModel()
        {
            var listView = new ListView();
            APIList = new ObservableCollection<GroupedAPIFunctionality>();

            var accessibilityFocus = new GroupedAPIFunctionality() { LongName = "Accessibility Focus", ShortName = "AF" };
            var TextToAnnounce = new GroupedAPIFunctionality() { LongName = "Text To Announce", ShortName = "TTA" };
            var explicitTTS = new GroupedAPIFunctionality() { LongName = "Explicit TTS", ShortName = "TTS" };
            var accessibilityTree = new GroupedAPIFunctionality() { LongName = "Accessibility Tree", ShortName = "AT" };
            var miscellanous = new GroupedAPIFunctionality() { LongName = "Miscellanous", ShortName = "M" };

            accessibilityFocus.Add(new APIFunctionality
            {
                Name = "1",
                Description = "Specify which views should receive the accessibility focus"
            });
            accessibilityFocus.Add(new APIFunctionality
            {
                Name = "2",
                Description = "Specify the accessibility focus order",
            });
            accessibilityFocus.Add(new APIFunctionality
            {
                Name = "3",
                Description = "Assign the accessibility focus to a view",
                Availability = "Indirect implementation",
            });
            accessibilityFocus.Add(new APIFunctionality
            {
                Name = "4",
                Description = "Specify actions associated to accessibility focus-related events (e.g., a view acquires or loses the focus)",
                Availability = "Indirect implementation",
            });
            accessibilityFocus.Add(new APIFunctionality
            {
                Name = "5",
                Description = "Determine whether a view has the accessibility focus or which view has the accessibility focus",
                Availability = "Indirect implementation",
            });
            TextToAnnounce.Add(new APIFunctionality
            {
                Name = "6",
                Description = "Specify attributes that contribute to form the text-to-announce",
            });
            TextToAnnounce.Add(new APIFunctionality
            {
                Name = "7",
                Description = "Programmatically define the text-to-announce",
                Availability = "Not available on XAMARIN",
            });
            TextToAnnounce.Add(new APIFunctionality
            {
                Name = "8",
                Description = "Use one view to describe another one",
                Availability = "Semi-direct implementation on iOS",
            });
            TextToAnnounce.Add(new APIFunctionality
            {
                Name = "9",
                Description = "Specify that a view should be announced when changed, even without user interaction",
                Availability = "Not available on XAMARIN",
            });
            TextToAnnounce.Add(new APIFunctionality
            {
                Name = "10",
                Description = "Specify in which language the text-to-announce should be read",
                Availability = "Not available on XAMARIN",
            });
            explicitTTS.Add(new APIFunctionality
            {
                Name = "11",
                Description = "Read a text with the screen-reader TTS",
                Availability = "Indirect Implementation",
            });
            explicitTTS.Add(new APIFunctionality
            {
                Name = "12",
                Description = "Be informed when the screen-reader finishes reading an explicitly provided text",
                Availability = "Not available on XAMARIN",
            });
            explicitTTS.Add(new APIFunctionality
            {
                Name = "13",
                Description = "Customize screen-reader TTS speech features, like pitch, speed, etc...",
                Availability = "Not available on XAMARIN",
            });
            explicitTTS.Add(new APIFunctionality
            {
                Name = "14",
                Description = "Read a text with non-screen-reader TTS (also works when screen-reader is not active)",
            });
            explicitTTS.Add(new APIFunctionality
            {
                Name = "15",
                Description = "Detect whether the non-screen-reader TTS is reading",
                Availability = "Not available on XAMARIN",
            });
            explicitTTS.Add(new APIFunctionality
            {
                Name = "16",
                Description = "Pause the non-screen-reader TTS",
                Availability = "Not available on XAMARIN",
            });
            explicitTTS.Add(new APIFunctionality
            {
                Name = "17",
                Description = "Customize non-screen-reader TTS speech features, like pitch, speed, etc...",
            });
            accessibilityTree.Add(new APIFunctionality
            {
                Name = "18",
                Description = "Aggregate multiple views into a single accessible element",
                Availability = "Semi-direct implementation on iOS",
            });
            accessibilityTree.Add(new APIFunctionality
            {
                Name = "19",
                Description = "Decompose a view into multiple accessibility elements",
                Availability = "Not available on XAMARIN",
            });
            accessibilityTree.Add(new APIFunctionality
            {
                Name = "20",
                Description = "Get the parent accessible element",
                Availability = "Not available on XAMARIN",
            });
            miscellanous.Add(new APIFunctionality
            {
                Name = "21",
                Description = "Detect whether screen-reader is active",
                Availability = "Indirect implementation",
            });
            miscellanous.Add(new APIFunctionality
            {
                Name = "22",
                Description = "Support navigation by specifying which views are headers or panes",
                Availability = "Not available on iOS",

            });
            miscellanous.Add(new APIFunctionality
            {
                Name = "23",
                Description = "Define how to respond to user actions that are only available when the screen reader is active",
                Availability = "Not available on Android",

            });
            miscellanous.Add(new APIFunctionality
            {
                Name = "24",
                Description = "Perform actions on user behalf",
                Availability = "Not available on XAMARIN",
            });
            miscellanous.Add(new APIFunctionality
            {
                Name = "25",
                Description = "Associate arbitrary accessibility-related information to a view",
                Availability = "Not available on XAMARIN",
            });

            APIList.Add(accessibilityFocus);
            APIList.Add(TextToAnnounce);
            APIList.Add(explicitTTS);
            APIList.Add(accessibilityTree);
            APIList.Add(miscellanous);

            listView.ItemsSource = APIList;
            listView.IsGroupingEnabled = true;
            listView.GroupDisplayBinding = new Binding("LongName");
            listView.GroupShortNameBinding = new Binding("ShortName");
        }
    }



}