public override void Run(Box parent)
{
var collectionView = new Ext.CollectionView(parent)
{
WeightX = 1,
WeightY = 1,
AlignmentY = -1,
AlignmentX = -1,
};
collectionView.Show();
var items = new List <string>();
for (int i = 0; i < 100; i++)
{
items.Add($"Items {i}");
}
var adaptor = new MyAdaptor(items);
collectionView.Adaptor = adaptor;
collectionView.LayoutManager = new Ext.GridLayoutManager(false, 3, Ext.ItemSizingStrategy.MeasureAllItems, 10, 10);
parent.PackEnd(collectionView);
}
public static void UpdateItemsLayout(this TCollectionView platformView, StructuredItemsView view)
{
if (view.ItemsLayout != null)
{
var itemSizingStrategy = view.ItemSizingStrategy.ToPlatform();
if (view.ItemsLayout is GridItemsLayout grid)
{
var orientation = grid.Orientation == ItemsLayoutOrientation.Horizontal;
var verticalItemSpacing = DPExtensions.ConvertToScaledPixel(grid.VerticalItemSpacing);
var horizontalItemSpacing = DPExtensions.ConvertToScaledPixel(grid.HorizontalItemSpacing);
platformView.LayoutManager = new GridLayoutManager(orientation, grid.Span, itemSizingStrategy, verticalItemSpacing, horizontalItemSpacing);
}
else if (view.ItemsLayout is LinearItemsLayout linear)
{
var orientation = linear.Orientation == ItemsLayoutOrientation.Horizontal;
var itemSpacing = DPExtensions.ConvertToScaledPixel(linear.ItemSpacing);
platformView.LayoutManager = new LinearLayoutManager(orientation, itemSizingStrategy, itemSpacing);
}
else
{
platformView.LayoutManager = new LinearLayoutManager(false);
}
platformView.SnapPointsType = (view.ItemsLayout as ItemsLayout).SnapPointsType.ToPlatform();
platformView.SelectionMode = (view as SelectableItemsView).SelectionMode.ToPlatform();
}
}
public static void UpdateItemsSource(this TCollectionView platformView, ItemsView view)
{
if (view.ItemsSource is INotifyCollectionChanged collectionChanged)
{
if (_observableSource != null)
{
_observableSource.CollectionChanged -= OnCollectionChanged;
}
_observableSource = collectionChanged;
_observableSource.CollectionChanged += OnCollectionChanged;
}
UpdateAdaptor(platformView, view);
void OnCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (view.ItemsSource == null || !view.ItemsSource.Cast <object>().Any())
{
platformView.Adaptor = EmptyItemAdaptor.Create(view);
}
else
{
if (platformView.Adaptor is EmptyItemAdaptor)
{
platformView.UpdateAdaptor(view);
}
}
}
}
EvasObject CreateContent(EvasObject parent)
{
var collectionView = new Ext.CollectionView(parent)
{
WeightX = 1,
WeightY = 1,
AlignmentY = -1,
AlignmentX = -1,
};
collectionView.Show();
var items = new List <string>();
for (int i = 0; i < 100; i++)
{
items.Add($"Items {i}");
}
var adaptor = new MyAdaptor(items);
collectionView.Adaptor = adaptor;
collectionView.LayoutManager = new Ext.LinearLayoutManager(false, Ext.ItemSizingStrategy.MeasureAllItems, 10);
return(collectionView);
}
public ShellView(EvasObject parent) : base(parent)
{
NativeParent = parent;
_navigationDrawer = CreateNavigationDrawer();
_navigationView = CreateNavigationView();
_navigationView.LayoutUpdated += OnNavigationViewLayoutUpdated;
_navigationView.Content = _itemsView = CreateItemsView();
_navigationDrawer.NavigationView = _navigationView.TargetView;
_navigationDrawer.Toggled += OnDrawerToggled;
_navigationDrawer.TargetView.SetAlignment(-1.0, -1.0);
_navigationDrawer.TargetView.SetWeight(1.0, 1.0);
_navigationDrawer.TargetView.Show();
PackEnd(_navigationDrawer.TargetView);
}
public static void UpdateAdaptor(this TCollectionView platformView, ItemsView view)
{
if (view.ItemsSource == null || !view.ItemsSource.Cast <object>().Any())
{
platformView.Adaptor = EmptyItemAdaptor.Create(view);
}
else if (view.ItemTemplate == null)
{
platformView.Adaptor = new ItemDefaultTemplateAdaptor(view);
}
else
{
platformView.Adaptor = new ItemTemplateAdaptor(view);
}
platformView.Adaptor.ItemSelected += OnItemSelected;
}
public ShellView(EvasObject parent) : base(parent)
{
PlatformParent = parent;
_navigationDrawer = CreateNavigationDrawer();
_navigationView = CreateNavigationView();
_navigationView.LayoutUpdated += OnNavigationViewLayoutUpdated;
_navigationView.Content = _itemsView = CreateItemsView();
_navigationDrawer.DrawerWidth = ThemeConstants.Shell.Resources.DefaultFlyoutItemWidth;
_navigationDrawer.NavigationView = _navigationView.TargetView;
_navigationDrawer.Toggled += OnDrawerToggled;
_navigationDrawer.TargetView.SetAlignment(-1.0, -1.0);
_navigationDrawer.TargetView.SetWeight(1.0, 1.0);
_navigationDrawer.TargetView.Show();
Show();
PackEnd(_navigationDrawer.TargetView);
}
