private void OnItemAppearing(object sender, ItemVisibilityEventArgs e)
{
if (ItemAppearingCommand != null)
{
ItemAppearingCommand?.Execute(e.Item);
}
}
//public async void TapSearchImage(object sender, EventArgs args)
//{
// lblNoRecord.IsVisible = false;
// if (loading.IsRunning == false)
// {
// if (!App.CheckInternetConnection())
// {
// await DisplayAlert(AppResources.LNetworkError, AppResources.LNoInternetConnection, AppResources.LOk);
// }
// else
// {
// if (FilterMahrashtraVisitGoesInternationalList.Text == "" || FilterMahrashtraVisitGoesInternationalList.Text == null)
// { SearchFilterText = ""; }
// else
// {
// SearchFilterText = FilterMahrashtraVisitGoesInternationalList.Text;
// }
// index = 0;
// loadingIndicator.IsVisible = true;
// loading.IsRunning = true;
// loading.IsVisible = true;
// // GalleryList.IsVisible = false; u
// CountryList.Clear();
// CallWebServiceForForiegnVisits(index);
// }
// }
//}
private async void GalleryList_ItemAppearing1(object sender, ItemVisibilityEventArgs e)
{
try
{
if (totalItems != 0)
{
MaxIndex = Math.Ceiling(((decimal)totalListItems) / 5);
if (index < MaxIndex)
{
if (CountryList != null && e.Item != null && e.Item == CountryList[CountryList.Count - 1])
{
index++;
if (index != MaxIndex)
{
GalleryList.IsRefreshing = false;
loadingIndicator.IsVisible = true;
loading.IsVisible = true;
loading.IsRunning = true;
await CallWebServiceForForiegnVisits(index);
}
}
}
}
}
catch (Exception ex)
{
if (App.CurrentPage() == "makeinmaharashtrainternational")
{
await DisplayAlert(AppResources.LError, AppResources.LWebserverNotResponding, AppResources.LOk);
}
}
}
private async void NewsGalleryLists_ItemAppearing1(object sender, ItemVisibilityEventArgs e)
{
try
{
if (totalItems != 0)
{
MaxIndex = Math.Ceiling(((decimal)totalItems) / 5);
if (index < MaxIndex)
{
if (NewsList != null && e.Item != null && e.Item == NewsList[NewsList.Count - 1])
{
index++;
if (index != MaxIndex)
{
NewsGalleryLists.IsRefreshing = false;
loadingIndicator.IsVisible = true;
loading.IsVisible = true;
loading.IsRunning = true;
await CallWebServiceForNewsGalleryList(index);
}
}
}
}
}
catch (Exception ex)
{
if (App.CurrentPage() == "newsgallerylist")
{
if (ex.Message.Contains("Network"))
{
await DisplayAlert(AppResources.LError, AppResources.LSomethingWentWrong, AppResources.LOk);
}
}
}
}
private void lw_ItemAppearing(object sender, ItemVisibilityEventArgs e)
{
Dataset_F102 item = e.Item as Dataset_F102;
currentItemIndex = GetF102_data_List.IndexOf(item);
if (currentItemIndex > prevItemIndex)
{
scroll_UP = true;
}
else
{
scroll_UP = false;
}
if (currentItemIndex > 20 & scroll_UP == true)
{
cv_f102_dynamic.IsVisible = false;
}
else if (currentItemIndex == 0)
{
cv_f102_dynamic.IsVisible = true;
}
/*DisplayAlert("Check",
* Math.Round(Math.Pow(currentItemIndex, 1.8), 0).ToString() , "OK"
* );*/
prevItemIndex = currentItemIndex;
}
// Infinite ListView Extension, borrowed from http://www.codenutz.com/lac09-xamarin-forms-infinite-scrolling-listview/
async void ItemAppearing(object sender, ItemVisibilityEventArgs e)
{
var items = _recipePageItems;
var item = e.Item;
if (items != null && e.Item == items[items.Count - 1])
{
busy = Busy.Flip(busy);
var response = await App.SpoonManager.GetRecipesByQueryAsync(recipeSearch.Text, items.Count);
busy = Busy.Flip(busy);
if (response.totalResults > 0)
{
foreach (RecipePreview recipe in response.results)
{
recipe.image = "https://spoonacular.com/recipeImages/" + recipe.image;
_recipePageItems.Add(recipe);
}
}
else if (!_endOfResults)
{
var label = new Label();
label.Text = "No more recipes, please try another search.";
recipeStack.Children.Add(label);
}
}
}
async void MoviesList_ItemAppearing(object sender, ItemVisibilityEventArgs e)
{
if (_viewModel.IsSearchingMode == false && e.Item == _viewModel.MovieList[_viewModel.MovieList.Count - 1])
{
await _viewModel.LoadMoreMovies();
}
}
private async void OnListItemDisappearing(object sender, ItemVisibilityEventArgs e)
{
// Experimental - Hiding and showing the FAB correctly is dependent on the objects in the list being unique
if (!(sender is Xamarin.Forms.ListView list))
{
return;
}
await Task.Run(() =>
{
if (list.ItemsSource is IList items)
{
var index = items.IndexOf(e.Item);
if (index < appearingListItemIndex && index >= 0)
{
appearingListItemIndex = index;
Device.BeginInvokeOnMainThread(async() =>
{
fab.Hide();
await Task.Delay(500);
fab.Show();
});
}
else
{
appearingListItemIndex = index;
}
}
});
}
private async void OnItemAppearing(object sender, ItemVisibilityEventArgs e)
{
var listView = (ListView)sender;
if (!(listView.BindingContext is IPageable pageable))
{
throw new InvalidOperationException($"{nameof(BindingContext)} must be of type {nameof(IPageable)}");
}
if (!(listView.ItemsSource is IList itemsSource))
{
// performance hit, just make the thing a list to begin with
itemsSource = listView.ItemsSource?.Cast <object>().ToList() ??
throw new InvalidOperationException($"{nameof(ListView.ItemsSource)} cannot be converted to {nameof(IList<object>)}");
}
if (pageable.IsLoadingPage || itemsSource.Count == 0)
{
return;
}
//hit bottom!
pageable.IsLoadingPage = true;
var itemIndex = itemsSource.IndexOf(e.Item);
if (itemIndex >= itemsSource.Count - ItemsRemainingBuffer)
{
await pageable.LoadNextPage().ConfigureAwait(true);
}
pageable.IsLoadingPage = false;
}
void Flowlistview_FlowItemAppearing(object sender, ItemVisibilityEventArgs e)
{
try
{
int currentIdx = 0;
if (e.Item != "0")
{
currentIdx = items.Items.IndexOf(e.Item as AllAudioModel);
Debug.WriteLine(currentIdx.ToString());
var lastItem = items.Items.Count - 1;
if (currentIdx == lastItem)
{
if (pagenumber != 0)
{
LoadMoreProcess().Wait(); // Make the rest api call to get more data to list
}
}
}
}
catch (Exception ex)
{
}
//int currentIdx=0;
//if(e.Item !="0")
// currentIdx = listAudio.IndexOf(e.Item as AllAudioModel);
//Debug.WriteLine(currentIdx.ToString());
//MessagingCenter.Send<SearchPage,AllAudioModel>(this,"LoadItems", e.Item as AllAudioModel);
}
private void ListView_ItemDisappearing(object sender, ItemVisibilityEventArgs e)
{
if (e.Item == null)
{
return;
}
if (e.Item is IEnumerable)
{
Grouping <string, Dish> gr = (Grouping <string, Dish>)e.Item;
if (xDishType.Text == gr.Key)
{
xDishType.Text = _stack.Pop();
//xDishType.Text = gr.Key;
}
xDishType.Text = gr.Key;
//DisplayAlert("Event: ItemDisAppearing", gr.Key, "Ok");
// var list = (IEnumerable)e.Item;
// string msg = "";
// foreach (Dish item in list)
// {
// msg += item.Name + "; ";
// }
// DisplayAlert("Event: ItemDisAppearing", msg, "Ok");
}
//else
//{
// var dish = (Dish)e.Item;
// DisplayAlert("Event: ItemDisAppearing", dish.Name, "Ok");
//}
}
private void OnItemAppearing(object sender, ItemVisibilityEventArgs e)
{
if (this.IsRefreshing)
{
return;
}
var _itens = this.ItemsSource as IList;
if (_itens == null)
{
return;
}
if (e.Item != _itens[_itens.Count - 1])
{
return;
}
if (e.Item.Equals(m_LastObject))
{
return;
}
if (this.PageLoadCommand != null && this.PageLoadCommand.CanExecute(null))
{
m_LastObject = e.Item;
this.PageLoadCommand.Execute(null);
}
}
private async void JalyuktVisitLists_ItemAppearing1(object sender, ItemVisibilityEventArgs e)
{
try
{
if (totalItems != 0)
{
MaxIndex = Math.Ceiling(((decimal)totalListItems) / 5);
if (index < MaxIndex)
{
if (CmVisitList != null && e.Item != null && e.Item == CmVisitList[CmVisitList.Count - 1])
{
index++;
if (index != MaxIndex)
{
loadingIndicator.IsVisible = true;
loading.IsVisible = true;
loading.IsRunning = true;
await CallWebServiceForJalyuktVisitsDetail(index);
}
}
}
}
}
catch (Exception ex)
{
if (App.CurrentPage() == "jalyuktavisits")
{
if (ex.Message.Contains("Network"))
{
await DisplayAlert(AppResources.LError, AppResources.LWebserverNotResponding, AppResources.LOk);
}
}
}
}
private async void EventVisitLists_ItemAppearing1(object sender, ItemVisibilityEventArgs e)
{
try
{
if (totalItems != 0)
{
MaxIndex = Math.Ceiling(((decimal)totalListItems) / 5);
if (index < MaxIndex)
{
if (EventList != null && e.Item != null && e.Item == EventList[EventList.Count - 1])
{
index++;
if (index != MaxIndex)
{
EventVisitLists.IsRefreshing = false;
loadingIndicator.IsVisible = true;
loading.IsVisible = true;
loading.IsRunning = true;
await CallWebServiceForEventVisitsDetail(index);
}
}
}
}
}
catch (Exception ex)
{
if (App.CurrentPage() == "events")
{
await DisplayAlert(AppResources.LError, AppResources.LSomethingWentWrong, AppResources.LOk);
}
}
}
private void ListView_ItemDisappearing(object sender, ItemVisibilityEventArgs e)
{
if (e.Item is DayTableViewModel dayTableViewModel)
{
viewModel.ItemDisappearingCommand.Execute(dayTableViewModel);
}
}
private async void PlanetList_ItemAppearing(object sender, ItemVisibilityEventArgs e)
{
if (PlanetsList.Count == PlanetResponse.count)
{
PlanetListView.ItemAppearing += null;
return;
}
var planet = e.Item as Planet;
if (PlanetsList != null && PlanetsList.LastOrDefault() == planet)
{
PlanetListView.Footer = new ActivityIndicator()
{
IsVisible = true, IsRunning = true, Color = Color.Black
};
PlanetResponse = await PlanetsApi.GetPlanestList(PlanetResponse.next);
PlanetListView.Footer = null;
if (PlanetResponse.results != null && PlanetsList != null && PlanetsList.Count > 0)
{
var list = PlanetResponse.results;
list.ForEach(product => PlanetsList.Add(product));
}
}
}
//protected override async void OnAppearing()
//{
// picker.SelectedIndex = 0;
// // если нет подключение к интернету
// if(!CrossConnectivity.Current.IsConnected)
// {
// InsertDataFromLocalDb();
// base.OnAppearing();
// return;
// }
// var response = await RequestBuilder.Create()
// .AppendPathSegments("api", "product", "productAllGet") // добавляет к ендпоинт
// .GetAsync(); // http://192.168.1.12:5002/api/menu/menuGet
// var data = JsonConvert.DeserializeObject<Product[]>(await response.Content.ReadAsStringAsync());
// //если ошбка или пришла пустота берем данные из локальной БД
// if(!response.IsSuccessStatusCode || !data.Any())
// {
// InsertDataFromLocalDb();
// base.OnAppearing();
// return;
// }
// //занесение в локальную БД новых данных
// using(var db = new ApplicationContext())
// {
// db.Product.RemoveRange(db.Product);
// await db.SaveChangesAsync();
// await db.Product.AddRangeAsync(data);
// await db.SaveChangesAsync();
// menuList.ItemsSource = db.Product.ToList();
// InsertDataFromLocalDb();
// }
// //если все ок то данные из инета
// //menuList.ItemsSource = data;
// void InsertDataFromLocalDb()
// {
// using(var db = new ApplicationContext())
// {
// menuList.ItemsSource = db.Product.Where(x => x.Type == (MenuType) picker.SelectedIndex).ToList();
// }
// }
// //var selectedIndex = picker.SelectedIndex;
// //var type = MenuType.Food;
// //if (selectedIndex == 0)
// //{
// // type = MenuType.Food;
// //}
// //else if (selectedIndex == 1)
// //{
// // type = MenuType.Drink;
// //}
// //Menus = await RequestBuilder.Create()
// // .AppendPathSegments("api", "product", "productGet") // добавляет к ендпоинт
// // .SetQueryParam("type", type)
// // .GetJsonAsync<Product[]>(); // http://192.168.1.12:5002/api/menu/menuGet
//Menus = await RequestBuilder.Create()
// .AppendPathSegments("api", "product", "productGet") // добавляет к ендпоинт
// .SetQueryParam("type", type)
// .GetJsonAsync<Product[]>(); // http://192.168.1.12:5002/api/menu/menuGet
//menuList.ItemsSource = Menus;
//}
private async void ProductList_ItemAppearing(object sender, ItemVisibilityEventArgs e)
{
var itemTypeObject = e.Item as Product;
if (_productsViewModel.ProductList.Last() == itemTypeObject && _productsViewModel.ProductList.Count() != 1 && _productsViewModel.ProductList.Count() != 2)
{
if (_productsViewModel.IsBusy)
{
if (!CrossConnectivity.Current.IsConnected)
{
// Показываем из локальной БД
using (var db = new ApplicationContext())
{
_productsViewModel.LoadMoreEmployerResultInLockal((MenuType)picker.SelectedIndex);
if (_productsViewModel.Error)
{
await DisplayAlert("Ошибочка", "Нет записей", "OK");
}
}
return;
}
// Загружать из интернета
await _productsViewModel.LoadMoreEmployerResult((MenuType)picker.SelectedIndex);
}
}
}
async void OnItemAppearing(object sender, ItemVisibilityEventArgs e)
{
if (isLoading)
{
return;
}
if (productList != null && e.Item == productList[productList.Count - 1])
{
isLoading = true;
++page;
try
{
var products = await App.wc.Product.GetAll(new Dictionary <string, string>() {
{ "page", String.Format("{0}", page) }
});
foreach (Product p in products)
{
productList.Add(p);
}
isLoading = false;
}
catch (Exception ex) {
--page;
isLoading = false;
Debug.WriteLine("ERROR: {0}", ex.Message);
await DisplayAlert("Error", "Connection problem. Pull to refresh again later.", "OK");
}
}
}
private void FlowListViewItemDisappearing(object sender, ItemVisibilityEventArgs e)
{
var container = e.Item as IEnumerable;
if (container != null)
{
EventHandler <ItemVisibilityEventArgs> handler = FlowItemDisappearing;
var command = FlowItemDisappearingCommand;
if (handler == null && command == null)
{
return;
}
foreach (var item in container)
{
handler?.Invoke(this, new ItemVisibilityEventArgs(item));
if (command != null && command.CanExecute(item))
{
command.Execute(item);
}
}
}
}
public async void Hanlde_ItemAppearing(object sender, ItemVisibilityEventArgs e)
{
if (this.BindingContext != null)
{
await((TenantsPageModel)BindingContext).OnItemAppeared((Tenant)e.Item);
}
}
/// <summary>
/// Load more messages when scroll reached the end of the page
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private async void OnLoadMoreMessages(object sender, ItemVisibilityEventArgs e)
{
if (dialogsManager.GetIsInitRequired(dialogId))
{
return;
}
var message = (Message)e.Item;
var messagesCount = messagesManager.GetMessagesCount(dialogId);
if (messagesCount >= Consts.BatchSize && messagesManager.IsMessageOlderThanAll(dialogId, message.Id))
{
activityIndicator.IsVisible = true;
await NetExceptionCatchHelpers.CatchNetException(
async() =>
{
await messagesManager.UpdateMessagesFromApi(dialogId, messagesCount);
messagesListView.ScrollIfExist(message, ScrollToPosition.Center);
},
() =>
{
OnLoadMoreMessages(sender, e);
return(Task.CompletedTask);
},
LocalizedStrings.MessagesNoInternetError);
activityIndicator.IsVisible = false;
}
}
private void NearSearch_ItemAppearing(object sender, ItemVisibilityEventArgs e)
{
if (model != null)
{
model?.clubSearch.Loading(e.Item as Club);
}
}
private void ListView_ItemAppearing(object sender, ItemVisibilityEventArgs e)
{
var selection = e.Item as PropertyModel;
PID = selection.SID.Replace("ID: ", "");
PID = PID.Replace(" ", "");
}
/// <summary>
/// thực hiểm Kiểm tra để load thêm danh sách
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void LvNews_ItemAppearing(object sender, ItemVisibilityEventArgs e)
{
if (model != null)
{
model?.ClubVM.Loading(e.Item as ContentInfo);
}
}
private void LocationList_ItemDisappearing(object sender, ItemVisibilityEventArgs e)
{
if (e.Item is Pin pin)
{
MyMapControl.Pins.Remove(pin);
}
}
void ItemList_ItemAppearing(object sender, ItemVisibilityEventArgs e)
{
if (e.Item.ToString() == Items.Last())
{
AddItemsToList(Enumerable.Range(0, 10).Select(i => $"Item {i}"));
}
}
private void ListView_ItemAppearing(object sender, ItemVisibilityEventArgs e)
{
var listView = (ListView)sender;
var element = e.Item;
IEnumerable <PropertyInfo> pInfos = (listView as ItemsView <Cell>).GetType().GetRuntimeProperties();
var templatedItems = pInfos.FirstOrDefault(info => info.Name == "TemplatedItems");
if (templatedItems != null)
{
var cells = templatedItems.GetValue(listView);
Xamarin.Forms.ITemplatedItemsList <Xamarin.Forms.Cell> listCell = cells as Xamarin.Forms.ITemplatedItemsList <Xamarin.Forms.Cell>;
ViewCell currentCell = listCell[e.ItemIndex] as ViewCell;
if (e.ItemIndex > lastItemAppearedIndex)
{
currentCell.View.TranslationY = 50;
//currentCell.View.Opacity = 0;
currentCell.View.TranslateTo(currentCell.View.X, 0, 500, Easing.SinOut);
//currentCell.View.FadeTo(1, 600);
}
else
{
currentCell.View.TranslationY = -50;
//currentCell.View.Opacity = 0;
currentCell.View.TranslateTo(currentCell.View.X, 0, 500, Easing.SinOut);
//currentCell.View.FadeTo(1, 600);
}
lastItemAppearedIndex = e.ItemIndex;
}
}
private async void ListView_ItemAppearing(object sender, ItemVisibilityEventArgs e)
{
if (((Post)e.Item).Id == viewModel.Data.LastOrDefault().Id)
{
await viewModel.LoadMoreData();
}
}
private void ListView_ItemAppearing(object sender, ItemVisibilityEventArgs e)
{
if ((e.Item as ContactsListModel) == context.Contacts?.LastOrDefault())
{
context.LoadMore.Execute(null);
}
}
//Event Item Appearing >> Get More video By ChannelUsers
private async void VidoesListView_OnItemAppearing(object sender, ItemVisibilityEventArgs e)
{
try
{
var currentItem = e.Item as Classes.Video;
var beforelastItem = Classes.VideoByChannelUsersList[Classes.VideoByChannelUsersList.Count - 2];
if (currentItem == beforelastItem)
{
if (!CrossConnectivity.Current.IsConnected)
{
await DisplayAlert(AppResources.Label_Error, AppResources.Label_Check_Your_Internet,
AppResources.Label_OK);
}
else
{
//Title = AppResources.Label_Loading;
var lastItem = Classes.VideoByChannelUsersList[Classes.VideoByChannelUsersList.Count - 1];
if (lastItem != null)
{
GetVideoByChannelUsers_Api(lastItem.dv_id);
}
}
}
}
catch (Exception ex)
{
var exception = ex.ToString();
}
}
private async void ItemAppearingEvent(object sender, ItemVisibilityEventArgs e)
{
TimeLineItem tItem = e.Item as TimeLineItem;
if (tItem == null)
{
return;
}
int progenyId = tItem.ProgenyId;
if (progenyId != _viewModel.Progeny.Id)
{
return;
}
tItem.VisibleBefore = true;
int itemsNotVisibleBeforeCount = _viewModel.TimeLineItems.Count(t => t.VisibleBefore == false);
if (_viewModel.CanLoadMore && itemsNotVisibleBeforeCount < 30)
{
await LoadItems(_timeLineList.Count - _dateHeaderCount, _viewModel.Progeny.Id, _viewModel.UserInfo.Timezone);
}
if (_viewModel.CanShowMore)
{
ShowNextItem();
}
}
private void InfiniteListView_ItemAppearing(object sender, ItemVisibilityEventArgs e)
{
var items = ItemsSource as IList;
if (items == null || e.Item != items[items.Count - 1]) return;
if (LoadMoreCommand != null && LoadMoreCommand.CanExecute(null))
LoadMoreCommand.Execute(null);
}
private void ArticlesListViewOnItemAppearing(object sender, ItemVisibilityEventArgs e)
{
var index = this.GetIndexOf(e.Item);;
if (index > this.ArticlesListView.ItemsSource.Count() - 5)
{
((FeedViewModel) this.BindingContext).Articles.RestockAction();
}
}
void InfiniteListView_ItemAppearing(object sender, ItemVisibilityEventArgs e)
{
var items = ItemsSource as IList;
if (items != null && e.Item == items [items.Count - 1]) {
if (ReachedBottom != null) {
ReachedBottom (this, e);
}
}
}
void InfiniteListViewItemAppearing(object sender, ItemVisibilityEventArgs e)
{
var items = ItemsSource as IList;
if (items != null && e.Item == items [items.Count - 1])
{
if (LoadMoreCommand != null && LoadMoreCommand.CanExecute (null))
LoadMoreCommand.Execute (null);
}
}
void InfiniteListView_ItemAppearing(object sender, ItemVisibilityEventArgs e)
{
/*var items = ItemsSource as IList;
if (this.IsLoading)
return;
if (items != null && !(((MainModel)e.Item).id == ((MainModel)items[items.Count - 1]).id))
return;
IsLoading = true;
if (LoadMoreCommand != null && LoadMoreCommand.CanExecute(null))
LoadMoreCommand.Execute(null);*/
}
async void List_ItemDisappearing (object sender, ItemVisibilityEventArgs e)
{
await Task.Run(() =>
{
var items = list.ItemsSource as IList;
if(items != null)
{
var index = items.IndexOf(e.Item);
if (index < appearingListItemIndex)
{
Device.BeginInvokeOnMainThread(() => fab.Hide());
}
appearingListItemIndex = index;
}
});
}
void XXListView_ItemAppearing(object sender, ItemVisibilityEventArgs e)
{
var c = ItemsSource as IList;
if (c == null)
{
return;
}
if (c[c.Count - 1] == e.Item)
{
if (MoreDataCommand != null)
{
MoreDataCommand.Execute(null);
}
}
}
private async void ListLayer_ItemAppearing(object sender, ItemVisibilityEventArgs e)
{
#if DEBUG
System.Diagnostics.Debug.WriteLine((e.Item as ListItem).TextItem);
System.Diagnostics.Debug.WriteLine("LastData is " + listItems.Last().TextItem);
#endif
// ObservableCollection の最後が ListView の Item と一致した時に ObservableCollection にデータを追加するなどの処理を行ってください。
if (listItems.Last() == e.Item as ListItem)
{
bgLayer.IsVisible = true;
frameLayer.IsVisible = true;
await Task.Delay(2000);
n++;
AddListItem(cellAmount * n);
frameLayer.IsVisible = false;
bgLayer.IsVisible = false;
}
}
void _listView_ItemDisappearing(object sender, ItemVisibilityEventArgs e)
{
if (!this.ShowScrollIdenticator || this._listView.ItemsSource == null) return;
var casted = this._listView.ItemsSource.Cast<object>();
if (casted.Count() == 0) return;
if (e.Item == casted.First())
{
this._upImage.IsVisible = true;
}
else if (e.Item == casted.Last())
{
this._downImage.IsVisible = true;
}
}
void listView_ItemAppearing(object sender, ItemVisibilityEventArgs e)
{
if (e.Item == thread [0] && _init) {
_init = false;
return;
}
if (e.Item == thread [0]) {
_init = true;
SimulateLoadPrevious (20);
}
}
private async void ListViewItemAppearing(object sender, ItemVisibilityEventArgs e)
{
var item = e.Item as ArticleDto;
if ((item != null)
&& (item.Equals(_viewModel.Items.Last())))
{
await _viewModel.DownloadMorePagedArticles();
}
}
/// <summary>
/// ListView の最後が表示されたら追加分を取得するメソッドです。
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private async void List_ItemAppearing(object sender, ItemVisibilityEventArgs e)
{
if (allEventsInfo.Last() == e.Item as AllEventsInfo && fetchFlag)
{
waitingLayout.IsVisible = true;
allEventsInfo = await GetJsonData(n);
if (allEventsInfo == null)
await DisplayAlert("Error", "すべてのサイトが死んでるかネットワークエラーです。\nネットワークの設定を確認してみてください。", "OK");
n++;
list.ItemsSource = allEventsInfo;
waitingLayout.IsVisible = false;
}
}
private void FlowListViewItemDisappearing(object sender, ItemVisibilityEventArgs e)
{
var container = e.Item as IEnumerable;
if (container != null)
{
EventHandler<ItemVisibilityEventArgs> handler = FlowItemDisappearing;
var command = FlowItemDisappearingCommand;
if (handler == null && command == null)
return;
foreach (var item in container)
{
handler?.Invoke(this, new ItemVisibilityEventArgs(item));
if (command != null && command.CanExecute(item))
command.Execute(item);
}
}
}
void ListView_ItemAppearing (object sender, ItemVisibilityEventArgs e)
{
//listView.ItemsFilled ();
}
public void ExtendedListview_ItemAppearing (object sender, ItemVisibilityEventArgs e)
{
var items = ItemsSource as IList;
if(items == null) return;
var currentItemIndex = items.IndexOf(e.Item);
if(currentItemIndex >= (PageNumber * PageSize - Offset) && LoadMoreCommand.CanExecute(null))
LoadMore();
}
async void OnItemAppearing(object sender, ItemVisibilityEventArgs e)
{
var item = (int)e.Item;
if (!_viewModel.IsLoading && item == _viewModel.Items.Last())
await LoadData();
}
void _fixturesListView_ItemAppearing (object sender, ItemVisibilityEventArgs e)
{
if (Device.OS == TargetPlatform.Android) {
if (e.Item == (_fixturesListView.ItemsSource as ObservableCollection<FixtureViewModel>).Last()) {
fab.Hide ();
} else {
fab.Show ();
}
}
}
