public iOSViewSource(HorizontalListView element, HashSet <DataTemplate> dataTemplates) { _weakElement = new WeakReference <HorizontalListView>(element); _createdCells = new Dictionary <long, WeakReference <iOSViewCell> >(); _dataTemplates = dataTemplates; var elementItemsSource = element.ItemsSource; _dataSource = elementItemsSource?.Cast <object>().ToList(); if (_dataSource == null) { return; } _multipleCellTemplates = _dataTemplates?.Any() ?? false; if (!_multipleCellTemplates) { // Cache only support single DataTemplate _viewCellHolderCellHolderQueue = new UIViewCellHolderQueue( element.ViewCacheSize, () => CreateViewCellHolder()); _viewCellHolderCellHolderQueue.Build(); } }
public iOSViewSource(HorizontalListView element) { _element = element; var elementItemsSource = _element.ItemsSource; _dataSource = elementItemsSource?.Cast <object>().ToList(); if (_dataSource == null) { return; } _viewCellHolderCellHolderQueue = new UIViewCellHolderQueue(element.ViewCacheSize, CreateViewCellHolder); _viewCellHolderCellHolderQueue.Build(); }
public iOSViewSource(HorizontalListView element) { _weakElement = new WeakReference <HorizontalListView>(element); var elementItemsSource = element.ItemsSource; _dataSource = elementItemsSource?.Cast <object>().ToList(); if (_dataSource == null) { return; } if (!(element.ItemTemplate is DataTemplateSelector)) { // Cache only support single DataTemplate _viewCellHolderCellHolderQueue = new UIViewCellHolderQueue( element.ViewCacheSize, () => CreateViewCellHolder()); _viewCellHolderCellHolderQueue.Build(); } }