void pager_PageScrollStateChanged(object sender, ViewPager.PageScrollStateChangedEventArgs e)
{
if (e.State == ViewPager.ScrollStateIdle)
{
//fix the position offset to 0 and the current position to the
//page currently at rest - fixes a couple of bugs not seen in the Java version
//whereby scrolling to the right would eventually see the tab to the right
//of the current selected one underlined once the pager settles, but as soon
//you move the pager it would draw correctly again.
//The other bug was similar, but occurred when the user scrolled a page a little
//bit left or right, then let go - the pager would bounce back to where it was,
//and the indicator would suddenly jump to the wrong tab until you started moving
//the pager again.
_currentPositionOffset = 0.0f;
_currentPosition = _pager.CurrentItem;
ScrollToChild(_pager.CurrentItem, 0);
}
var evt = PageScrollStateChanged;
if (evt != null)
{
evt(this, e);
}
}
private void Value_PageScrollStateChanged(object sender, ViewPager.PageScrollStateChangedEventArgs e)
{
mScrollState = e.State;
if (mViewPagerPageChangeListener != null)
{
mViewPagerPageChangeListener.OnPageScrollStateChanged(e.State);
}
}
// To invoke PositionSelected
void ViewPager_PageScrollStateChanged(object sender, ViewPager.PageScrollStateChangedEventArgs e)
{
// Call PositionSelected when scroll finish, after swiping finished and position > 0
if (e.State == 0 && !isSwiping && Element.Position > 0)
{
Element.PositionSelected?.Invoke(Element, Element.Position);
}
}
private void ViewPagerOnPageScrollStateChanged(object sender, ViewPager.PageScrollStateChangedEventArgs pageScrollStateChangedEventArgs)
{
var rulesCirle = Resources.GetStringArray(Resource.Array.RulesCirle);
var imageScrollId = Resources.GetIdentifier("rules_" + rulesCirle[_viewPager.CurrentItem] + "_sroll_page", "drawable", this.PackageName);
var imageScroll = FindViewById <ImageView>(Resource.Id.imageScroll);
imageScroll.SetImageResource(imageScrollId);
}
/// <summary>
/// Used to start scrolling to the recyclerview element after scrolling to the tab has finished
/// </summary>
private void TabsOnPageScrollStateChanged(object sender, ViewPager.PageScrollStateChangedEventArgs args)
{
if (args.State == ViewPager.ScrollStateIdle)
{
GetRecyclerView().SmoothScrollToPosition(source.NumberInSubtitles);
GetTabsViewPagers().PageScrollStateChanged -= TabsOnPageScrollStateChanged;
}
}
void value_PageScrollStateChanged(object sender, ViewPager.PageScrollStateChangedEventArgs e)
{
scrollState = e.State;
if (viewPagerPageChangeListener != null)
{
viewPagerPageChangeListener.OnPageScrollStateChanged(e.State);
}
}
// To invoke PositionSelected
void ViewPager_PageScrollStateChanged(object sender, ViewPager.PageScrollStateChangedEventArgs e)
{
// Call PositionSelected when scroll finish, after swiping finished and position > 0
if (e.State == 0 && !isSwiping && Element.Position > 0)
{
Element.SendPositionSelected();
Element.PositionSelectedCommand?.Execute(null);
}
}
void ViewPager_PageScrollStateChanged(object sender, ViewPager.PageScrollStateChangedEventArgs e)
{
if (e.State == 0)
{
if (!IsRemoving && Element.PositionSelected != null)
{
Element.PositionSelected(Element, EventArgs.Empty);
}
}
}
private void ViewPager_PageScrollStateChanged(object sender, ViewPager.PageScrollStateChangedEventArgs e)
{
if (e.State == ViewPager.ScrollStateIdle) // pseudo-infinite sliding
{
var adapter = (InfiniteViewPagerAdapter)_viewPager.Adapter;
var position = _viewPager.CurrentItem;
var realPosition = adapter.ToRealPosition(position);
if (position == 0 || position == adapter.Count - 1)
{
_viewPager.SetCurrentItem(realPosition + 1, false);
}
}
}
private void PostPagerOnPageScrollStateChanged(object sender, ViewPager.PageScrollStateChangedEventArgs pageScrollStateChangedEventArgs)
{
if (pageScrollStateChangedEventArgs.State == 0)
{
_feedList.ScrollToPosition(_postPager.CurrentItem);
if (_feedList.GetLayoutManager() is GridLayoutManager manager)
{
var positionToScroll = _postPager.CurrentItem + (_postPager.CurrentItem - manager.FindFirstVisibleItemPosition()) / 2;
_feedList.ScrollToPosition(positionToScroll < Presenter.Count
? positionToScroll
: Presenter.Count);
}
}
}
// To invoke PositionSelected
void ViewPager_PageScrollStateChanged(object sender, ViewPager.PageScrollStateChangedEventArgs e)
{
// ScrollStateIdle = 0 : the pager is in Idle, settled state
// ScrollStateDragging = 1 : the pager is currently being dragged by the user
// ScrollStateSettling = 2 : the pager is in the process of settling to a final position
mViewPagerState = e.State;
// Call PositionSelected when scroll finish, after swiping finished and position > 0
if (e.State == ViewPager.ScrollStateIdle)
{
SetArrowsVisibility();
Element.SendPositionSelected();
Element.PositionSelectedCommand?.Execute(null);
}
}
void ViewPager_PageScrollStateChanged(object sender, ViewPager.PageScrollStateChangedEventArgs e)
{
if (e.State == 0)
{
if (IsRemoveAt)
{
Element.ItemsSource.RemoveAt(_removeAt);
viewPager.Adapter.NotifyDataSetChanged();
IsRemoveAt = false;
}
if (!IsRemoving && Element.PositionSelected != null)
{
Element.PositionSelected(Element, EventArgs.Empty);
}
}
}
//viewpager 滑动事件
private void PageScrollStateChanged(object s, ViewPager.PageScrollStateChangedEventArgs e)
{
if (e.State == 2)
{
switch (viewPager.CurrentItem)
{
case PAGE_CHAT:
SetSelected();
tv_chat.Selected = true;
break;
case PAGE_CONTRACT:
SetSelected();
tv_contract.Selected = true;
break;
case PAGE_MORE:
SetSelected();
tv_more.Selected = true;
break;
}
}
}
void value_PageScrollStateChanged(object sender, ViewPager.PageScrollStateChangedEventArgs e)
{
//PagerAdapter adapter = mViewPager.Adapter;
//string tipo = adapter.GetType().ToString();
//if (tipo.Contains("ListadoMonitorizacion") && e.State == 0)
//{
// tabseleccionado = 0;
//}
//else if (tipo.Contains("ListadoMonitorizacion") && e.State == 1)
//{
// tabseleccionado = 1;
//}
//else {
// tabseleccionado = 7;
//}
mScrollState = e.State;
if (mViewPagerPageChangeListener != null)
{
mViewPagerPageChangeListener.OnPageScrollStateChanged(e.State);
}
}
private void _viewPager_PageScrollStateChanged(object sender, ViewPager.PageScrollStateChangedEventArgs e)
{
Log.Debug(TAG, "_viewPager_PageScrollStateChanged");
}
private void ViewPager_PageScrollStateChanged(object sender, ViewPager.PageScrollStateChangedEventArgs args)
{
}
private void value_PageScrollStateChanged(object sender, ViewPager.PageScrollStateChangedEventArgs e)
{
mScrollState = e.State;
}
