protected async override void OnAppearing()
        {
            NotesCell.Tapped += NotesCell_Tapped;
            EditItem.InitEvents();

            var login = await _loginService.GetByIdAsync(_loginId);

            if (login == null)
            {
                await Navigation.PopForDeviceAsync();

                return;
            }

            Model.Update(login);

            if (!Model.ShowUri)
            {
                LoginInformationSection.Remove(UriCell);
            }
            else if (!LoginInformationSection.Contains(UriCell))
            {
                LoginInformationSection.Add(UriCell);
            }

            if (!Model.ShowUsername)
            {
                LoginInformationSection.Remove(UsernameCell);
            }
            else if (!LoginInformationSection.Contains(UsernameCell))
            {
                LoginInformationSection.Add(UsernameCell);
            }

            if (!Model.ShowPassword)
            {
                LoginInformationSection.Remove(PasswordCell);
            }
            else if (!LoginInformationSection.Contains(PasswordCell))
            {
                LoginInformationSection.Add(PasswordCell);
            }

            if (!Model.ShowNotes)
            {
                Table.Root.Remove(NotesSection);
            }
            else if (!Table.Root.Contains(NotesSection))
            {
                Table.Root.Add(NotesSection);
            }

            base.OnAppearing();
        }
        protected async override void OnAppearing()
        {
            _pageDisappeared  = false;
            NotesCell.Tapped += NotesCell_Tapped;
            EditItem.InitEvents();

            var login = await _loginService.GetByIdAsync(_loginId);

            if (login == null)
            {
                await Navigation.PopForDeviceAsync();

                return;
            }

            Model.Update(login);

            if (LoginInformationSection.Contains(UriCell))
            {
                LoginInformationSection.Remove(UriCell);
            }
            if (Model.ShowUri)
            {
                LoginInformationSection.Add(UriCell);
            }

            if (LoginInformationSection.Contains(UsernameCell))
            {
                LoginInformationSection.Remove(UsernameCell);
            }
            if (Model.ShowUsername)
            {
                LoginInformationSection.Add(UsernameCell);
            }

            if (LoginInformationSection.Contains(PasswordCell))
            {
                LoginInformationSection.Remove(PasswordCell);
            }
            if (Model.ShowPassword)
            {
                LoginInformationSection.Add(PasswordCell);
            }

            if (Table.Root.Contains(NotesSection))
            {
                Table.Root.Remove(NotesSection);
            }
            if (Model.ShowNotes)
            {
                Table.Root.Add(NotesSection);
            }

            // Totp
            if (LoginInformationSection.Contains(TotpCodeCell))
            {
                LoginInformationSection.Remove(TotpCodeCell);
            }
            if (login.Totp != null && (_tokenService.TokenPremium || login.OrganizationUseTotp))
            {
                var totpKey = login.Totp.Decrypt(login.OrganizationId);
                if (!string.IsNullOrWhiteSpace(totpKey))
                {
                    Model.TotpCode = Crypto.Totp(totpKey);
                    if (!string.IsNullOrWhiteSpace(Model.TotpCode))
                    {
                        TotpTick(totpKey);
                        Device.StartTimer(new TimeSpan(0, 0, 1), () =>
                        {
                            if (_pageDisappeared)
                            {
                                return(false);
                            }

                            TotpTick(totpKey);
                            return(true);
                        });

                        LoginInformationSection.Add(TotpCodeCell);
                    }
                }
            }

            CleanupAttachmentCells();
            if (Table.Root.Contains(AttachmentsSection))
            {
                Table.Root.Remove(AttachmentsSection);
            }
            if (Model.ShowAttachments && _tokenService.TokenPremium)
            {
                AttachmentsSection = new TableSection(AppResources.Attachments);
                AttachmentCells    = new List <AttachmentViewCell>();
                foreach (var attachment in Model.Attachments.OrderBy(s => s.Name))
                {
                    var attachmentCell = new AttachmentViewCell(attachment, async() =>
                    {
                        await OpenAttachmentAsync(login, attachment);
                    });
                    AttachmentCells.Add(attachmentCell);
                    AttachmentsSection.Add(attachmentCell);
                    attachmentCell.InitEvents();
                }
                Table.Root.Add(AttachmentsSection);
            }

            base.OnAppearing();
        }