PersonPage.xaml.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Net;
using Chatfer.Shared;
using Xamarin.Forms;
using System.Diagnostics;
using Xamarin.Forms.Xaml;

namespace Chatfer.Pages
{
    [XamlCompilation(XamlCompilationOptions.Compile)]
    public partial class PersonPage : ContentPage
    {
        private string name { get; set; }
        private string image { get; set; }
        private string status { get; set; }
        private int matchUID;
        private bool last;
        public int page;
        public CarouselPage parent;

        public PersonPage(string displayName, string Status, string profileimage, int uID, bool flag, int pageNum, CarouselPage parentRef)
        {
            InitializeComponent();
            this.name = displayName;
            this.image = profileimage;
            this.matchUID = uID;
            this.status = Status;
            this.last = flag;
            this.page = pageNum;
            this.parent = parentRef;
            profileImage.Source = image;
            nameLabel.Text = name;
            statusLabel.Text = status;
            AddGestureRecognizer();
        }

        protected override void OnAppearing()
        {
            base.OnAppearing();
            if (last)
            {
                last = false;
                LoadMorePages();
            }
        }

        public async void LoadMorePages()
        {
            try
            {
                int nextPage = page + 1;
                List<Match> matches = await API.Matches.Find(nextPage);
                List<Response> peopleInformation = new List<Response>();
                List<int> matchU2IDs = new List<int>();

                foreach (var match in matches)
                {
                    Response resp = await API.Account.QueryOther(match.u2ID);
                    if (resp.Status == HttpStatusCode.OK)
                    {
                        peopleInformation.Add(resp);
                        matchU2IDs.Add(match.u2ID);
                    }
                }

                foreach (var resp in peopleInformation)
                {
                    bool flag = false;
                    //Why?
                    if (peopleInformation.IndexOf(resp) == peopleInformation.Count - 3)
                    {
                        flag = true;
                    }
                    int secondPersonID = matchU2IDs[peopleInformation.IndexOf(resp)];
                    parent.Children.Add(new PersonPage(resp.Account.DisplayName, resp.Account.Status, API.Account.GetImage(secondPersonID.ToString()), secondPersonID, flag, nextPage, parent));
                }
            }
            catch (Exception e)
            {

            }
        }

        public void AddGestureRecognizer()
        {
            var tapGestureRecognizer = new TapGestureRecognizer();

            tapGestureRecognizer.Tapped += async (s, e) =>
            {
                var action = await DisplayActionSheet("Add to Chat List?", "Cancel", null, "Yes");

                switch (action)
                {
                    case "Yes":
                        Response resp = await API.Matches.Add(matchUID);
                        if (resp.Status == System.Net.HttpStatusCode.OK)
                        {
                            var disp = await DisplayAlert("Hooray!", "You may now message this person", "OK", "cancel");
                            //API.personContacted = true;
                        }
                        if (resp.Status == System.Net.HttpStatusCode.InternalServerError)
                        {
                            var disp = await DisplayAlert("Hang on", "This person is already in your Chat List", "OK", "cancel");
                        }
                        break;
                    default:
                        break;
                }
            };
            profileImage.GestureRecognizers.Add(tapGestureRecognizer);
        }
    }
}