public bool OnItemLongClick(AWidget.AdapterView parent, AViews.View view, int position, long id)
{
object selectedItem = null;
//if (_element.ItemsSource.GetType().GetInterfaces().Any(x => x == typeof(IGroupedOrderable)))
if (element.ItemsSource is IGroupedOrderableCollection grouped)
{
selectedItem = grouped.GetItemFromFlatIndex(id);
}
else
{
selectedItem = ((IList)element.ItemsSource)[(int)id];
}
// Creating drag state
DragItem dragItem = new DragItem(NormalizeListPosition(position), view, selectedItem);
// Creating a blank clip data object (we won't depend on this)
var data = ClipData.NewPlainText(string.Empty, string.Empty);
// Creating the default drag shadow for the item (the translucent version of the view)
// NOTE: Can create a custom view in order to change the dragged item view
AViews.View.DragShadowBuilder shadowBuilder = new AViews.View.DragShadowBuilder(view);
// Setting the original view cell to be invisible
view.Visibility = AViews.ViewStates.Invisible;
// NOTE: this method is introduced in Android 24, for earlier versions the StartDrag method should be used
view.StartDragAndDrop(data, shadowBuilder, dragItem, 0);
return(true);
}
public bool OnItemLongClick(Android.Widget.AdapterView parent, Android.Views.View view, int position, long id)
{
var selectedItem = ((IList)_element.ItemsSource)[(int)id];
// Creating drag state
DragItem dragItem = new DragItem(NormalizeListPosition(position), view, selectedItem);
// Creating a blank clip data object (we won't depend on this)
var data = ClipData.NewPlainText(string.Empty, string.Empty);
// Creating the default drag shadow for the item (the translucent version of the view)
// NOTE: Can create a custom view in order to change the dragged item view
AViews.View.DragShadowBuilder shadowBuilder = new AViews.View.DragShadowBuilder(view);
// Setting the original view cell to be invisible
view.Visibility = ViewStates.Invisible;
// NOTE: this method is introduced in Android 24, for earlier versions the StartDrag method should be used
view.StartDragAndDrop(data, shadowBuilder, dragItem, 0);
return(true);
}
/// <summary>
/// Handler for Long Click event from <paramref name="view"/>
/// </summary>
/// <param name="parent">
/// The parent list view .
/// </param>
/// <param name="view">
/// The view that triggered the long click event
/// </param>
/// <param name="position">
/// The position of the view in the list (has to be normalized, includes headers).
/// </param>
/// <param name="id">
/// The id of the item that triggered the event (must be bigger than 0 under normal circumstances).
/// </param>
/// <returns>
/// The <see cref="bool"/> flag that identifies whether the event is handled.
/// </returns>
public bool OnItemLongClick(AWidget.AdapterView parent, AViews.View view, int position, long id)
{
var selectedItem = ((IList)_element.ItemsSource)[(int)id];
DragItem dragItem = new DragItem(NormalizeListPosition(position), view, selectedItem);
var data = ClipData.NewPlainText(string.Empty, string.Empty);
AViews.View.DragShadowBuilder shadowBuilder = new AViews.View.DragShadowBuilder(view);
view.Visibility = ViewStates.Invisible;
if (Build.VERSION.SdkInt >= BuildVersionCodes.N)
{
view.StartDragAndDrop(data, shadowBuilder, dragItem, 0);
}
else
{
view.StartDrag(data, shadowBuilder, id, 0);
}
return(true);
}
