private void UpdateCurrentLocation(UILongPressGestureRecognizer gesture)
{
NSIndexPath indexPath = null;
var location = new PointF();
// refresh index path
location = gesture.LocationInView(this);
indexPath = IndexPathForRowAtPoint(location);
indexPath = Source.CustomizeMoveTarget(this, initialIndexPath, indexPath);
// if (RespondsToSelector(tableView:targetIndexPathForMoveFromRowAtIndexPath:toProposedIndexPath:)]) {
// indexPath = TargetIndexPathForMoveFromRowAtIndexPath(InitialIndexPath, indexPath);
// }
var oldHeight = RectForRowAtIndexPath(currentLocationIndexPath).Size.Height;
var newHeight = RectForRowAtIndexPath(indexPath).Size.Height;
if (indexPath != null && !indexPath.Equals(currentLocationIndexPath) && gesture.LocationInView(CellAt(indexPath)).Y > newHeight - oldHeight)
{
BeginUpdates();
DeleteRows(new NSIndexPath[] { currentLocationIndexPath }, UITableViewRowAnimation.Automatic);
InsertRows(new NSIndexPath[] { indexPath }, UITableViewRowAnimation.Automatic);
((IReorder)Source).MoveRowAtIndexPath(currentLocationIndexPath, indexPath);
currentLocationIndexPath = indexPath;
EndUpdates();
}
}
public UICollectionViewCell GetCell(UICollectionView collectionView, NSIndexPath indexPath)
{
var cell = (ScratchCell)collectionView.DequeueReusableCell(ScratchCell.Id, indexPath);
cell.HasBananas = indexPath.Equals(bananaPath);
return(cell);
}
public override UITableViewCell GetCell(UITableView tableView, NSIndexPath indexPath)
{
MenuTableViewCell cell = tableView.DequeueReusableCell(MenuTableViewCell.key) as MenuTableViewCell;
cell.InitCell(Constants.menuItems[indexPath.Row], Constants.menuItemsImages[indexPath.Row]);
if (indexPath.Equals(selectedIndexPath))
{
cell.SetSelected(true, false);
}
return(cell);
}
public override UICollectionViewCell GetCell (UICollectionView collectionView, NSIndexPath indexPath)
{
var cell = (ExistingImageCollectionViewCell)collectionView.DequeueReusableCell (cellReuseIdentifier, indexPath);
cell = cell ?? new ExistingImageCollectionViewCell ();
cell.ThumbnailImage.Image = view.imageRecords [indexPath.Row].Thumbnail;
bool isLoading = indexPath != null && indexPath.Equals (view.currentLoadingIndex);
cell.SetLoading (isLoading);
return cell;
}
internal UITableViewCell CellAt(UITableView view, NSIndexPath path)
{
if (path == null)
{
return(null);
}
if (_lastCreatedCellPath != null && path.Equals(_lastCreatedCellPath))
{
return(_lastCreatedCell);
}
return(view.CellAt(path));
}
public override UICollectionViewCell GetCell(UICollectionView collectionView, NSIndexPath indexPath)
{
var cell = (ExistingImageCollectionViewCell)collectionView.DequeueReusableCell(cellReuseIdentifier, indexPath);
cell = cell ?? new ExistingImageCollectionViewCell();
cell.ThumbnailImage.Image = view.imageRecords [indexPath.Row].Thumbnail;
bool isLoading = indexPath != null && indexPath.Equals(view.currentLoadingIndex);
cell.SetLoading(isLoading);
return(cell);
}
public static nfloat DefaultGetHeightForRow(this IKeepLastCell content, UITableView tableView,
NSIndexPath indexPath)
{
UITableViewCell cell;
if (indexPath.Equals(content.LastIndexPath))
{
cell = content.LastCell;
}
else
{
cell = content.GetCell(tableView, indexPath);
}
return(cell.Bounds.Height);
}
internal UICollectionViewCell CellForItem(UICollectionView view, NSIndexPath path)
{
if (path == null)
{
return(null);
}
UICollectionViewCell cell = view.CellForItem(path);
if (cell != null)
{
return(cell);
}
if (_lastCreatedCellPath != null && path.Equals(_lastCreatedCellPath))
{
return(_lastCreatedCell);
}
return(null);
}
void WarpToIndexPath(NSIndexPath indexPath)
{
if (indexPath == null || lastIndexPath.Equals(indexPath))
{
return;
}
lastIndexPath = indexPath;
if (this.CollectionView.DataSource.RespondsToSelector(new Selector("collectionView:canMoveItemAtIndexPath:toIndexPath:")) == true && ((UICollectionViewDataSourceDraggable)this.CollectionView.DataSource).CollectionViewCanMoveItemAtIndexPathToIndexPath(this.CollectionView, this.LayoutHelper.FromIndexPath, indexPath) == false)
{
return;
}
this.CollectionView.PerformBatchUpdates(delegate()
{
this.LayoutHelper.HideIndexPath = indexPath;
this.LayoutHelper.ToIndexPath = indexPath;
}, null);
}
internal UICollectionViewCell CellForItem(UICollectionView view, NSIndexPath path)
{
if (path == null)
return null;
UICollectionViewCell cell = view.CellForItem(path);
if (cell != null)
return cell;
if (_lastCreatedCellPath != null && path.Equals(_lastCreatedCellPath))
return _lastCreatedCell;
return null;
}
public ArrayList ModifiedLayoutAttributesForElements(ArrayList elements)
{
UICollectionView collectionView = this.CollectionViewLayout.CollectionView;
NSIndexPath fromIndexPath = this.FromIndexPath;
NSIndexPath toIndexPath = this.ToIndexPath;
NSIndexPath hideIndexPath = this.HideIndexPath;
NSIndexPath indexPathToRemove = null;
if (toIndexPath == null)
{
if (hideIndexPath == null)
{
return(elements);
}
foreach (UICollectionViewLayoutAttributes layoutAttributes in elements)
{
if (layoutAttributes.RepresentedElementCategory != UICollectionElementCategory.Cell)
{
continue;
}
if (layoutAttributes.IndexPath.Equals(hideIndexPath))
{
layoutAttributes.Hidden = true;
}
}
return(elements);
}
if (fromIndexPath.Section != toIndexPath.Section)
{
indexPathToRemove = NSIndexPath.FromItemSection(collectionView.NumberOfItemsInSection(fromIndexPath.Section) - 1, fromIndexPath.Section);
}
foreach (UICollectionViewLayoutAttributes layoutAttributes in elements)
{
if (layoutAttributes.RepresentedElementCategory != UICollectionElementCategory.Cell)
{
continue;
}
if (layoutAttributes.IndexPath.Equals(indexPathToRemove))
{
layoutAttributes.IndexPath = NSIndexPath.FromItemSection(collectionView.NumberOfItemsInSection(toIndexPath.Section), toIndexPath.Section);
if (layoutAttributes.IndexPath.Item != 0)
{
layoutAttributes.Center = this.CollectionViewLayout.LayoutAttributesForItem(layoutAttributes.IndexPath).Center;
}
}
NSIndexPath indexPath = layoutAttributes.IndexPath;
if (indexPath.Equals(hideIndexPath))
{
layoutAttributes.Hidden = true;
}
if (indexPath.Equals(toIndexPath))
{
layoutAttributes.IndexPath = fromIndexPath;
}
else if (fromIndexPath.Section != toIndexPath.Section)
{
if (indexPath.Section == fromIndexPath.Section && indexPath.Item >= fromIndexPath.Item)
{
layoutAttributes.IndexPath = NSIndexPath.FromItemSection(indexPath.Item + 1, indexPath.Section);
}
else if (indexPath.Section == toIndexPath.Section && indexPath.Item >= toIndexPath.Item)
{
layoutAttributes.IndexPath = NSIndexPath.FromItemSection(indexPath.Item - 1, indexPath.Section);
}
}
else if (indexPath.Section == fromIndexPath.Section)
{
if (indexPath.Item <= fromIndexPath.Item && indexPath.Item > toIndexPath.Item)
{
layoutAttributes.IndexPath = NSIndexPath.FromItemSection(indexPath.Item - 1, indexPath.Section);
}
else if (indexPath.Item >= fromIndexPath.Item && indexPath.Item < toIndexPath.Item)
{
layoutAttributes.IndexPath = NSIndexPath.FromItemSection(indexPath.Item + 1, indexPath.Section);
}
}
}
return(elements);
}
internal UITableViewCell CellAt(UITableView view, NSIndexPath path)
{
if (path == null)
return null;
if (_lastCreatedCellPath != null && path.Equals(_lastCreatedCellPath))
return _lastCreatedCell;
return view.CellAt(path);
}
