void list_Scroll(object sender, AbsListView.ScrollEventArgs e)
{
for (int i = e.FirstVisibleItem - adapter.HeadersCount; i < e.FirstVisibleItem + e.VisibleItemCount - adapter.FootersCount; i++)
{
(ViewModel as SearchQuestionsResultsViewModel).Questions[i].OnShowing();
}
}
void HandleScroll(object sender, AbsListView.ScrollEventArgs e)
{
lastVisibleItem = e.FirstVisibleItem + e.VisibleItemCount;
if (!isLoading && adapter.ReflectionFeed.pagination != null && (adapter.ReflectionFeed.pagination.next_cursor > 0) && (lastVisibleItem == e.TotalItemCount))
{
isLoading = true;
loadingView.Visibility = ViewStates.Visible;
Task.Run(async delegate {
postsReq.Parameters.RemoveAll(x => x.Name == "cursor");
postsReq.AddParameter("cursor", adapter.ReflectionFeed.pagination.next_cursor);
var resp = client.Execute(postsReq);
var feed = JsonConvert.DeserializeObject <Feed> (resp.Content, serializerSettings);
adapter.ReflectionFeed.data.AddRange(feed.data);
adapter.ReflectionFeed.pagination = feed.pagination;
isLoading = false;
Activity.RunOnUiThread(() => {
UpdateView();
loadingView.Visibility = ViewStates.Gone;
});
});
// if we're at the bottom of the list, check that there's a next cursor number
}
}
private void ScrollReporterEffect_Scroll(object sender, AbsListView.ScrollEventArgs e)
{
int pos = GetListViewYPosition();
float dp = pos / Density;
effect.OnScrollEffect(Element, new ScrollEventArgs(dp));
}
private void OnControlScroll(object sender, AbsListView.ScrollEventArgs e)
{
Android.Views.View view = Control.GetChildAt(0);
if (view != null)
{
((ListViewExtended)Element).YScrollOutput = (-view.Top + Control.FirstVisiblePosition * view.Height) / Context.Resources.DisplayMetrics.Density;
}
}
void list_Scroll(object sender, AbsListView.ScrollEventArgs e)
{
var tournaments = (ViewModel as LastAddedTournamentsViewModel).Tournaments;
for (int i = e.FirstVisibleItem - listView.HeaderViewsCount;
i < e.FirstVisibleItem + e.VisibleItemCount - listView.FooterViewsCount && i < tournaments.Count; i++)
{
tournaments[i].OnShowing();
}
}
void HandleScroll(object sender, AbsListView.ScrollEventArgs e)
{
if (loading || e.FirstVisibleItem + e.VisibleItemCount < e.TotalItemCount)
{
return;
}
loading = true;
RetrieveActivityData(adapter);
}
private void FilmsListView_Scroll(object sender, AbsListView.ScrollEventArgs e)
{
bool scrollLimit = e.FirstVisibleItem + e.VisibleItemCount >= e.TotalItemCount - 10 && e.TotalItemCount != 0;
if (scrollLimit && !_loadingMoreData && !WaitForItBLL.Singleton.NoMoreMoviesToLoad)
{
_loadingMoreData = true;
new Thread(LoadAdditionnalMovies).Start();
}
}
void list_Scroll(object sender, AbsListView.ScrollEventArgs e)
{
if (e.FirstVisibleItem + e.VisibleItemCount == e.TotalItemCount)
{
if (ViewModel.IsMoreAvailable && !ViewModel.IsBusy)
{
ViewModel.LoadMoreCommand.Execute(null);
}
}
}
private void Lw_Scroll(object sender, AbsListView.ScrollEventArgs e)
{
var ddd = e.View.GetChildAt(0);
if (lw.FirstVisiblePosition == 0)
{
rrr = ddd.Top;
}
CustomListview.OnScrollChanged(Source, new Controls.Actions.ScrollChangedEventArgs(0, 0, 0, rrr));
}
void HandleScroll(object sender, AbsListView.ScrollEventArgs e)
{
if (loading ||
e.FirstVisibleItem + e.VisibleItemCount + 1 < e.TotalItemCount ||
!hasNextPage)
{
return;
}
loading = true;
DoFetch();
}
private void Listview_Scroll(object sender, AbsListView.ScrollEventArgs e)
{
var listview = sender as ListView;
var adapter = listview.Adapter as ArticleThreadAdapter;
var firstIndex = e.FirstVisibleItem;
var visibleCount = e.VisibleItemCount;
var lastShownItemIndex = firstIndex + visibleCount;
System.Diagnostics.Debug.WriteLine(listview.LastVisiblePosition + "\t@@@\t" + firstIndex + "\t" + visibleCount);
}
private void Control_Scroll(object sender, AbsListView.ScrollEventArgs e)
{
if (e.FirstVisibleItem != _prevFirstVisibleElement && _myListView != null)
{
var direction = e.FirstVisibleItem > _prevFirstVisibleElement ? MyListView.ScrollToEnd : MyListView.ScrollToStart;
_myListView.LastScrollDirection = direction;
_myListView.AtStartOfList = (e.FirstVisibleItem == 0);
_myListView.AtEndOfList = (e.FirstVisibleItem + 1 + e.VisibleItemCount >= e.TotalItemCount);
_prevFirstVisibleElement = e.FirstVisibleItem;
}
}
private void Control_Scroll(object sender, AbsListView.ScrollEventArgs e)
{
if (e.FirstVisibleItem != _prevFirstVisibleElement && Element is MyListView)
{
var direction = e.FirstVisibleItem > _prevFirstVisibleElement ? MyListView.ScrollToEnd : MyListView.ScrollToStart;
var myList = Element as MyListView;
myList.LastScrollDirection = direction;
myList.AtStartOfList = (e.FirstVisibleItem == 0);
_prevFirstVisibleElement = e.FirstVisibleItem;
}
}
private void Control_Scroll(object sender, AbsListView.ScrollEventArgs e)
{
if (e.FirstVisibleItem + e.VisibleItemCount == e.TotalItemCount)
{
var s = DateTime.UtcNow;
if ((s - lastScroll).TotalMilliseconds > 500)
{
((IOverScrollView)Element).InvokeOverScrolled();
}
lastScroll = s;
}
}
void HandleScroll(object sender, AbsListView.ScrollEventArgs e)
{
lastVisibleItem = e.FirstVisibleItem + e.VisibleItemCount;
if (!isLoading && currentAdapter.ReflectionFeed.pagination != null && (currentAdapter.ReflectionFeed.pagination.next_cursor > 0) && (lastVisibleItem == e.TotalItemCount))
{
isLoading = true;
currentList.AddFooterView(loadingView);
// loadingView.Visibility = ViewStates.Visible;
Task.Run(async() => GetMoreFeeds());
}
}
private void ListView_Scroll(object sender, AbsListView.ScrollEventArgs e)
{
if (e.FirstVisibleItem > mPreviousVisibleItem)
{
fab.Hide(true);
}
else if (e.FirstVisibleItem < mPreviousVisibleItem)
{
fab.Show(true);
}
mPreviousVisibleItem = e.FirstVisibleItem;
}
private async void _control_Scroll(object sender, AbsListView.ScrollEventArgs e)
{
var c = _control.GetChildAt(0);
var scrolly = -c.Top + _control.FirstVisiblePosition * c.Height;
if (scrolly < 20)
{
await Task.Delay(250);
}
// TODO: When scrolls to down we should animate toolbar to top together with layout
// NavigationPage.SetHasNavigationBar(page.CurrentPage, !(scrolly > 20));
}
private void KeepScrollingInfinitely(object sender, AbsListView.ScrollEventArgs args)
{
lock (_scrollLockObject)
{
var mustLoadMore = args.FirstVisibleItem + args.VisibleItemCount >= args.TotalItemCount - LoadNextItemsThreshold;
if (mustLoadMore && _mySimpleItemLoader.CanLoadMoreItems && !_mySimpleItemLoader.IsBusy)
{
_mySimpleItemLoader.IsBusy = true;
Log.Info(TAG, "Requested to load more items");
_mySimpleItemLoader.LoadMoreItems(ItemsPerPage);
_gridviewAdapter.NotifyDataSetChanged();
_gridView.InvalidateViews();
}
}
}
void OnListScroll (object sender, AbsListView.ScrollEventArgs e)
{
if (mReady) {
char firstLetter = mStrings[e.FirstVisibleItem][0];
if (!mShowing && firstLetter != mPrevLetter) {
mShowing = true;
mDialogText.Visibility = ViewStates.Visible;
}
mDialogText.Text = firstLetter.ToString ();
mHandler.RemoveCallbacks (mRemoveWindow);
mHandler.PostDelayed (mRemoveWindow, 3000);
mPrevLetter = firstLetter;
}
}
private void ListView_Scroll(object sender, AbsListView.ScrollEventArgs e)
{
if (this.hideFab)
{
return;
}
if (e.FirstVisibleItem > previousVisibleItem)
{
fab.Hide(true);
}
else if (e.FirstVisibleItem < previousVisibleItem)
{
fab.Show(true);
}
previousVisibleItem = e.FirstVisibleItem;
}
private void Control_Scroll(object sender, AbsListView.ScrollEventArgs e)
{
if (e.FirstVisibleItem != _prevFirstVisibleElement && _myListView != null)
{
var direction = e.FirstVisibleItem > _prevFirstVisibleElement ? ExtendedListView.ScrollToEnd : ExtendedListView.ScrollToStart;
_myListView.LastScrollDirection = direction;
_myListView.AtStartOfList = (e.FirstVisibleItem == 0);
_myListView.AtEndOfList = (e.FirstVisibleItem + 1 + e.VisibleItemCount >= e.TotalItemCount);
_prevFirstVisibleElement = e.FirstVisibleItem;
}
var items = _myListView.ItemsSource as IEnumerable <object>;
if (items != null && items.Count() > e.FirstVisibleItem)
{
_myListView.FirstVisibleItem = items.ElementAt(e.FirstVisibleItem);
}
_myListView.FirstVisibleItemIndex = e.FirstVisibleItem;
}
/// <summary>
/// Handles the scroll.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="e">The <see cref="AbsListView.ScrollEventArgs"/> instance containing the event data.</param>
void HandleScroll(object sender, AbsListView.ScrollEventArgs e)
{
//if (_scrollDistance <= 1) {
// _searchBarIsVisible = true; // HandleScroll gets called when the view is created, which causes search bar to be removed
// _isScrollingDown = true;
// _scrollDistance = _searchText.Height;
//}
//if (_isScrollingDown) {
// if (!_searchBarIsVisible) {
// ShowSearchBar ();
// }
//} else if (!_isScrollingDown) {
// if (_searchBarIsVisible) {
// HideSearchBar ();
// }
//}
}
void Control_Scroll(object sender, AbsListView.ScrollEventArgs e)
{
int y = (int)(-e.View.GetChildAt(0).GetY() / 2);
if (y == lastY)
{
return;
}
if (e.FirstVisibleItem == 0 && y <= 255 && y >= 0)
{
CustomNavigationPage.SetBarBackgroundColor(Color.FromRgba(255, 80, 80, lastY = y));
}
else if (e.FirstVisibleItem != 0 && Math.Abs(lastY - 1) > double.Epsilon)
{
CustomNavigationPage.SetBarBackgroundColor(Color.FromRgba(255, 80, 80, lastY = 255));
}
}
private async void OnNotesListScroll(object sender, AbsListView.ScrollEventArgs e)
{
// Prevenir cargar notas precipitadamente.
NotesList.Scroll -= OnNotesListScroll;
try
{
// Cargar notas solo si se ha llegado al final de la lista.
bool more = e.FirstVisibleItem + e.VisibleItemCount >= e.TotalItemCount;
if (more)
{
ProgressDialog dialog = new ProgressDialog(this);
dialog.SetMessage("Cargando notas");
dialog.SetCancelable(false);
dialog.SetCanceledOnTouchOutside(false);
dialog.Show();
List <NoteItem> notes = await DibbiData.GetNotes(Notes[Notes.Count - 1].CreatedAt);
Notes.AddRange(notes);
NotesAdapter.NotifyDataSetChanged();
// Cargar más notas posteriormente solo si quedan más.
if (notes.Count == 20)
{
NotesList.Scroll += OnNotesListScroll;
}
await Task.Delay(1000);
dialog.Dismiss();
dialog.Dispose();
}
else
{
NotesList.Scroll += OnNotesListScroll;
}
}
catch (Exception err)
{
throw err;
}
}
private void Target_Scroll(object sender, AbsListView.ScrollEventArgs e)
{
if (e.TotalItemCount <= 0 || (e.TotalItemCount - e.FirstVisibleItem >= 4 && e.VisibleItemCount + e.FirstVisibleItem < e.TotalItemCount))
{
return;
}
if (this.command == null)
{
return;
}
if (!this.command.CanExecute(null))
{
return;
}
this.command.Execute(null);
}
void HandleScroll(object sender, AbsListView.ScrollEventArgs e)
{
var h = headerView.Height - Activity.ActionBar.Height - floatingHeader.Height;
// if (headerView != null) {
// if ((tableHeader.Top + headerView.Top) < 110) {
// floatingHeader.Visibility = ViewStates.Visible;
// } else {
// floatingHeader.Visibility = ViewStates.Gone;
// }
// }
float ratio = (float)Math.Min(Math.Max(headerView.GetY() * -1, 0), h) / h;
int newAlpha = (int)(ratio * 255);
if (actionBarBackgroundDrawable != null)
{
actionBarBackgroundDrawable.SetAlpha(newAlpha);
// Activity.ActionBar.SetBackgroundDrawable (actionBarBackgroundDrawable);
}
}
private void Control_Scroll(object sender, AbsListView.ScrollEventArgs e)
{
if (ControlEventHelper.IsFirstScrollAfterListViewChanged)
{
ControlEventHelper.IsFirstScrollAfterListViewChanged = false;
return;
}
var action = Parallax.Helpers.ControlEventHelper.GetListViewScrollAction(this.Element);
if (action == null)
{
return;
}
else if (Control.ChildCount == 0)
{
return;
}
var c = Control.GetChildAt(0);
action(Element, Control.FirstVisiblePosition, Resources.DisplayMetrics.Density, 0, c.Top);
}
private void M_listview_Scroll(object sender, AbsListView.ScrollEventArgs e)
{
try
{
if (e.TotalItemCount <= 0)
{
return;
}
//If the listview is scrolled to bottom, dismiss andHUD (this is the end of the activity initialization)
int iLastItemShownOnScreen = e.FirstVisibleItem + e.VisibleItemCount;
if (iLastItemShownOnScreen == e.TotalItemCount)
{
AndHUD.Shared.Dismiss();
}
}
catch (Exception ex)
{
MobileCenter_Helper.ReportError(new FileAccessManager(), ex, GetType().Name, MethodBase.GetCurrentMethod().Name);
}
}
private async void MListView_Scroll(object sender, AbsListView.ScrollEventArgs e)
{
if (_isBusy)
{
return;
}
var list = sender as ListView;
var lastIndexInScreen = e.VisibleItemCount + e.FirstVisibleItem;
if (lastIndexInScreen >= e.TotalItemCount)
{
_isBusy = true;
DisplayProgressBar(true);
await Task.Delay(2000);
BindNextItems();
DisplayProgressBar(false);
_isBusy = false;
}
;
}
private void OnIndexListScroll(object sender, AbsListView.ScrollEventArgs e)
{
var index = indexListAdaptor[e.FirstVisibleItem];
SetIndexIndicator(index == null ? ' ' : index.Title[0]);
}
