internal void UpdateSubview(object view, DataTemplate viewTemplate, nint viewTag, ref UIView uiView, ref VisualElement formsElement)
{
uiView?.RemoveFromSuperview();
if (formsElement != null)
{
ItemsView.RemoveLogicalChild(formsElement);
formsElement.MeasureInvalidated -= OnFormsElementMeasureInvalidated;
}
UpdateView(view, viewTemplate, ref uiView, ref formsElement);
if (uiView != null)
{
uiView.Tag = viewTag;
CollectionView.AddSubview(uiView);
}
if (formsElement != null)
{
ItemsView.AddLogicalChild(formsElement);
}
if (formsElement != null)
{
RemeasureLayout(formsElement);
formsElement.MeasureInvalidated += OnFormsElementMeasureInvalidated;
}
else if (uiView != null)
{
uiView.SizeToFit();
}
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
CollectionView.ScrollsToTop = false;
CollectionView.Bounces = false;
CollectionView.AlwaysBounceHorizontal = false;
CollectionView.ShowsHorizontalScrollIndicator = false;
CollectionView.ClipsToBounds = false;
_bar = new UIView(new CGRect(0, 0, 20, 20));
_bar.BackgroundColor = UIColor.White;
_bar.Layer.ZPosition = 9001; //its over 9000!
CollectionView.AddSubview(_bar);
_bottomShadow = new UIView(new CGRect(0, 0, 10, 1));
_bottomShadow.BackgroundColor = Color.Black.MultiplyAlpha(0.3).ToUIColor();
_bottomShadow.Layer.ZPosition = 9002;
CollectionView.AddSubview(_bottomShadow);
var flowLayout = Layout as UICollectionViewFlowLayout;
flowLayout.ScrollDirection = UICollectionViewScrollDirection.Horizontal;
flowLayout.MinimumInteritemSpacing = 0;
flowLayout.MinimumLineSpacing = 0;
flowLayout.EstimatedItemSize = new CGSize(70, 35);
CollectionView.RegisterClassForCell(GetCellType(), CellId);
((IShellController)_shellContext.Shell).AddAppearanceObserver(this, ShellSection);
ShellSectionController.ItemsCollectionChanged += OnShellSectionItemsChanged;
UpdateSelectedIndex();
ShellSection.PropertyChanged += OnShellSectionPropertyChanged;
}
void AddRefreshControl()
{
refreshControl = new UIRefreshControl()
{
TintColor = UIColor.FromRGB(214, 93, 98)
//AttributedTitle = new NSAttributedString("Fetching new prompt")
};
if (UIDevice.CurrentDevice.CheckSystemVersion(10, 0))
{
CollectionView.RefreshControl = refreshControl;
}
else
{
CollectionView.AddSubview(refreshControl);
}
refreshControl.ValueChanged += (sender, e) =>
{
CollectionView.Bounces = false;
CollectionView.AlwaysBounceVertical = false;
GenerateNewPrompt();
ReloadPromptsCollection();
refreshControl.EndRefreshing();
CollectionView.Bounces = true;
CollectionView.AlwaysBounceVertical = true;
};
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
RefreshControl.ValueChanged += (sender, e) => Task.Run(async() => await Refresh());
CollectionView.AddSubview(RefreshControl);
var deletate = new CustomFlowLayoutDelegate();
deletate.ItemClick += async(sender, e) =>
{
var item = await Detail.GetVideo(ID, List[e.Index].Set, LanguageHelper.PrefLang);
var picker = new UIPickerView();
var model = new QualityPickerViewModel(item);
model.ItemClick += (s2, e2) =>
{
View.WillRemoveSubview(picker);
if (moviePlayer == null)
{
moviePlayer = new MPMoviePlayerController();
View.AddSubview(moviePlayer.View);
moviePlayer.ShouldAutoplay = true;
}
moviePlayer.ContentUrl = NSUrl.FromString(item.ToDictionary().Values.ToArray()[e2.Index]);
moviePlayer.SetFullscreen(true, false);
moviePlayer.PrepareToPlay();
moviePlayer.Play();
};
View.AddSubview(picker);
picker.Hidden = false;
};
CollectionView.Delegate = deletate;
CollectionView.RegisterClassForCell(typeof(DetailCell), _detailCellId);
CollectionView.ContentInset = new UIEdgeInsets(4, 4, 4, 4);
Task.Run(async() => await Refresh());
}
protected void UpdateSubview(object view, DataTemplate viewTemplate, ref UIView uiView, ref VisualElement formsElement)
{
if (uiView != null)
{
CollectionView.Subviews.Remove(uiView);
}
if (formsElement != null)
{
ItemsView.RemoveLogicalChild(formsElement);
formsElement.MeasureInvalidated -= OnFormsElementMeasureInvalidated;
}
UpdateView(view, viewTemplate, ref uiView, ref formsElement);
if (uiView != null)
{
CollectionView.AddSubview(uiView);
}
if (formsElement != null)
{
ItemsView.AddLogicalChild(formsElement);
}
if (formsElement != null)
{
RemeasureLayout(formsElement);
formsElement.MeasureInvalidated += OnFormsElementMeasureInvalidated;
}
else if (uiView != null)
{
uiView.SizeToFit();
}
}
void AddPullToRefresh()
{
var refreshControl = new UIRefreshControl();
refreshControl.ValueChanged += HandleValueChanged;
refreshControl.AddTarget(Self, new Selector("startRefresh"), UIControlEvent.ValueChanged);
refreshControl.TintColor = UIColor.Clear;
var loadingView = new UIView(refreshControl.Bounds);
loadingView.BackgroundColor = UIColor.Clear;
var backgroundImage = new UIImageView(UIImage.FromBundle("loading.png"));
loadingView.AddSubview(backgroundImage);
loadingView.ClipsToBounds = true;
var refreshColorView = new UIView(refreshControl.Bounds);
refreshColorView.BackgroundColor = UIColor.Clear;
refreshColorView.Alpha = 0.3f;
refreshControl.AddSubview(loadingView);
refreshControl.AddSubview(refreshColorView);
CollectionView.AddSubview(refreshControl);
}
void SetUpPullToRefresh()
{
refresher = new UIRefreshControl();
refresher.ValueChanged += OnControllValueChanged;
CollectionView.AlwaysBounceVertical = true;
CollectionView.AddSubview(refresher);
}
public override void ViewDidLoad()
{
LoggingClass.LogInfo("Entered into favorite", screen);
try
{
this.CollectionView.Add(refreshControl);
refreshControl.ValueChanged += (rcSender, e) =>
{
//Refresh this view
myData = svc.GetItemFavsUID(CurrentUser.RetreiveUserId()).Result;
if (myData.ItemList.Count == 0)
{
UIImageView ImgIns = new UIImageView();
ImgIns.Image = UIImage.FromFile("FavIns.png");
UILabel NoFav = new UILabel();
NoFav.Text = myData.ErrorDescription;
NoFav.LineBreakMode = UILineBreakMode.WordWrap;
NoFav.Lines = 0;
CGSize sTemp = new CGSize(View.Frame.Width, 100);
sTemp = NoFav.SizeThatFits(sTemp);
NoFav.Frame = new CGRect(0, 50, View.Frame.Width - 20, sTemp.Height);
NoFav.TextAlignment = UITextAlignment.Center;
ImgIns.Frame = new CGRect((View.Frame.Width / 2) - 100, 50 + sTemp.Height + 20, 202, 381);
CollectionView.AddSubview(NoFav);
CollectionView.AddSubview(ImgIns);
}
CollectionView.ReloadData();
refreshControl.EndRefreshing();
};
myData = svc.GetItemFavsUID(CurrentUser.RetreiveUserId()).Result;
if (myData.ItemList.Count == 0)
{
UIImageView ImgIns = new UIImageView();
ImgIns.Image = UIImage.FromFile("FavIns.png");
UILabel NoFav = new UILabel();
NoFav.Text = myData.ErrorDescription;
NoFav.LineBreakMode = UILineBreakMode.WordWrap;
NoFav.Lines = 0;
CGSize sTemp = new CGSize(View.Frame.Width, 100);
sTemp = NoFav.SizeThatFits(sTemp);
NoFav.Frame = new CGRect(0, 50, View.Frame.Width - 20, sTemp.Height);
NoFav.TextAlignment = UITextAlignment.Center;
ImgIns.Frame = new CGRect((View.Frame.Width / 2) - 100, 50 + sTemp.Height + 20, 202, 381);
CollectionView.AddSubview(NoFav);
CollectionView.AddSubview(ImgIns);
}
BTProgressHUD.Dismiss();
this.View.BackgroundColor = new UIColor(256, 256, 256, 0.8f);
this.CollectionView.BackgroundColor = UIColor.White;
CollectionView.RegisterClassForCell(typeof(MyFavViewCell), MyFavViewCell.Key);
}
catch (Exception ex)
{
LoggingClass.LogError(ex.Message, screen, ex.StackTrace);
}
}
public void AddSubView(IView subView)
{
var mvxViewController = subView as MvxViewController;
if (mvxViewController != null)
{
mvxViewController.View.ClipsToBounds = true;
mvxViewController.View.Hidden = false;
mvxViewController.View.Frame = new RectangleF(0, 0, 320, 200);
CollectionView.AddSubview(mvxViewController.View);
//BringSubviewToFront(mvxViewController.MyView);
}
}
// Do NOT remove this handler even if ReSharper cannot find it's usage. It is referred in BarCell.designer.cs file by its name. That's how Xamarin is linking the event on the button.
partial void HandleButtonRightTouchUpInside(NSObject sender)
{
var subViewModelTwo = App.SGFactory.Create <ISubViewModelTwo, ISubViewTwo>();
if (subViewModelTwo != null)
{
var subViewTwo = subViewModelTwo.MyView as MvxViewController;
if (subViewTwo != null)
{
subViewTwo.View.Hidden = false;
subViewTwo.View.Frame = new RectangleF(0, 0, 320, 200);
CollectionView.AddSubview(subViewTwo.View);
//BringSubviewToFront(subViewTwo.MyView);
}
}
}
void UpdateEmptyViewVisibility(bool isEmpty)
{
if (isEmpty && _emptyUIView != null)
{
var emptyView = CollectionView.ViewWithTag(EmptyTag);
if (emptyView != null)
{
emptyView.RemoveFromSuperview();
ItemsView.RemoveLogicalChild(_emptyViewFormsElement);
}
_emptyUIView.Tag = EmptyTag;
CollectionView.AddSubview(_emptyUIView);
LayoutEmptyView();
if (_emptyViewFormsElement != null)
{
if (ItemsView.EmptyViewTemplate == null)
{
ItemsView.AddLogicalChild(_emptyViewFormsElement);
}
// Now that the native empty view's frame is sized to the UICollectionView, we need to handle
// the Forms layout for its content
_emptyViewFormsElement.Layout(_emptyUIView.Frame.ToRectangle());
}
_emptyViewDisplayed = true;
}
else
{
// Is the empty view currently in the background? Swap back to the default.
if (_emptyViewDisplayed)
{
_emptyUIView.RemoveFromSuperview();
_emptyUIView.Dispose();
_emptyUIView = null;
ItemsView.RemoveLogicalChild(_emptyViewFormsElement);
}
_emptyViewDisplayed = false;
}
}
void ShowEmptyView()
{
if (_emptyViewDisplayed || _emptyUIView == null)
{
return;
}
_emptyUIView.Tag = EmptyTag;
CollectionView.AddSubview(_emptyUIView);
if (!ItemsView.LogicalChildren.Contains(_emptyViewFormsElement))
{
ItemsView.AddLogicalChild(_emptyViewFormsElement);
}
LayoutEmptyView();
AlignEmptyView();
_emptyViewDisplayed = true;
}
void ShowEmptyView()
{
if (_emptyViewDisplayed || _emptyUIView == null)
{
return;
}
_emptyUIView.Tag = EmptyTag;
CollectionView.AddSubview(_emptyUIView);
if (((IElementController)ItemsView).LogicalChildren.IndexOf(_emptyViewFormsElement) == -1)
{
ItemsView.AddLogicalChild(_emptyViewFormsElement);
}
LayoutEmptyView();
AlignEmptyView();
_emptyViewDisplayed = true;
}
internal void UpdateSubview(object view, DataTemplate viewTemplate, ref UIView uiView, ref VisualElement formsElement)
{
if (uiView != null)
{
CollectionView.Subviews.Remove(uiView);
}
if (formsElement != null)
{
ItemsView.RemoveLogicalChild(formsElement);
formsElement.MeasureInvalidated -= OnFormsElementMeasureInvalidated;
}
UpdateView(view, viewTemplate, ref uiView, ref formsElement);
if (uiView != null)
{
CollectionView.AddSubview(uiView);
}
if (formsElement != null)
{
ItemsView.AddLogicalChild(formsElement);
}
if (formsElement != null)
{
var request = formsElement.Measure(CollectionView.Frame.Width, double.PositiveInfinity, MeasureFlags.IncludeMargins);
Xamarin.Forms.Layout.LayoutChildIntoBoundingRegion(formsElement, new Rectangle(0, -request.Request.Height, CollectionView.Frame.Width, request.Request.Height));
formsElement.MeasureInvalidated += OnFormsElementMeasureInvalidated;
}
else if (uiView != null)
{
uiView.SizeToFit();
}
}
protected override void HandleLongPressGesture()
{
switch (LongPressGestureRecognizer.State)
{
case UIGestureRecognizerState.Began:
{
// we get the current item and draw a floating copy on it on the Collection View, so that it cannot be taken outside the bounds of the collection view
// we get the copy usign RasterizedImage
var currentIndexPath = CollectionView.IndexPathForItemAtPoint(LongPressGestureRecognizer.LocationInView(CollectionView));
SelectedItemIndexPath = currentIndexPath;
if (SelectedItemIndexPath == null)
{
return;
}
if (!DataSource.CanMoveItemAtIndexPath(SelectedItemIndexPath))
{
return;
}
var collectionViewCell = CollectionView.CellForItem(SelectedItemIndexPath);
CurrentView = new UIView(collectionViewCell.Frame);
collectionViewCell.Highlighted = true;
var highlightedImageView = new UIImageView(RastertizedImage(collectionViewCell));
highlightedImageView.AutoresizingMask = UIViewAutoresizing.FlexibleWidth | UIViewAutoresizing.FlexibleHeight;
highlightedImageView.Alpha = 1.0f;
collectionViewCell.Highlighted = false;
var imageView = new UIImageView(RastertizedImage(collectionViewCell));
imageView.AutoresizingMask = UIViewAutoresizing.FlexibleWidth | UIViewAutoresizing.FlexibleHeight;
imageView.Alpha = 0.0f;
CurrentView.AddSubview(imageView);
CurrentView.AddSubview(highlightedImageView);
CollectionView.AddSubview(CurrentView);
CurrentViewCenter = CurrentView.Center;
OnWillBeginDraggingItem(SelectedItemIndexPath);
// animate the floating copy into existence
UIView.Animate(0.3, 0.0, UIViewAnimationOptions.BeginFromCurrentState,
() =>
{
CurrentView.Transform = CGAffineTransform.MakeScale(1.1f, 1.1f);
highlightedImageView.Alpha = 0.0f;
imageView.Alpha = 1.0f;
},
() =>
{
highlightedImageView.RemoveFromSuperview();
OnDidBegingDraggingItem(SelectedItemIndexPath);
});
InvalidateLayout();
}
break;
case UIGestureRecognizerState.Cancelled:
case UIGestureRecognizerState.Ended:
{
var currentIndexPath = SelectedItemIndexPath;
if (currentIndexPath == null)
{
return;
}
SelectedItemIndexPath = null;
CurrentViewCenter = PointF.Empty;
OnWillEndDraggingItem(currentIndexPath);
UIView.Animate(0.3, 0.0, UIViewAnimationOptions.BeginFromCurrentState,
() =>
{
var layoutAttributes = LayoutAttributesForItem(currentIndexPath);
CurrentView.Transform = CGAffineTransform.MakeScale(1.0f, 1.0f);
CurrentView.Center = layoutAttributes.Center;
},
() =>
{
CurrentView.RemoveFromSuperview();
CurrentView = null;
InvalidateLayout();
OnDidEndDraggingItem(currentIndexPath);
});
}
break;
}
}
