public ScrollToCodeGallery(IItemsLayout itemsLayout, ScrollToMode mode = ScrollToMode.Position, Func <DataTemplate> dataTemplate = null, Func <CollectionView> createCollectionView = null)
{
createCollectionView = createCollectionView ?? (() => new CollectionView());
Title = $"ScrollTo (Code, {itemsLayout})";
var layout = new Grid
{
RowDefinitions = new RowDefinitionCollection
{
new RowDefinition {
Height = GridLength.Auto
},
new RowDefinition {
Height = GridLength.Auto
},
new RowDefinition {
Height = GridLength.Star
}
}
};
var itemTemplate = dataTemplate == null?ExampleTemplates.ScrollToIndexTemplate() : dataTemplate();
var collectionView = createCollectionView();
collectionView.ItemsLayout = itemsLayout;
collectionView.ItemTemplate = itemTemplate;
var generator = new ItemsSourceGenerator(collectionView, initialItems: 50);
layout.Children.Add(generator);
if (mode == ScrollToMode.Position)
{
var scrollToControl = new ScrollToIndexControl(collectionView);
layout.Children.Add(scrollToControl);
Grid.SetRow(scrollToControl, 1);
}
else
{
var scrollToControl = new ScrollToItemControl(collectionView);
layout.Children.Add(scrollToControl);
Grid.SetRow(scrollToControl, 1);
}
layout.Children.Add(collectionView);
Grid.SetRow(collectionView, 2);
Content = layout;
generator.GenerateItems();
}
public TemplateCodeCollectionViewGallery(IItemsLayout itemsLayout)
{
var layout = new Grid
{
RowDefinitions = new RowDefinitionCollection
{
new RowDefinition {
Height = GridLength.Auto
},
new RowDefinition {
Height = GridLength.Star
}
}
};
var itemTemplate = ExampleTemplates.PhotoTemplate();
var collectionView = new CollectionView
{
ItemsLayout = itemsLayout,
ItemTemplate = itemTemplate,
AutomationId = "collectionview",
BackgroundColor = Colors.Red
};
var generator = new ItemsSourceGenerator(collectionView, initialItems: 20);
layout.Children.Add(generator);
layout.Children.Add(collectionView);
Grid.SetRow(collectionView, 1);
Content = layout;
generator.GenerateItems();
}
