private void ListView_ItemDragging(object sender, ItemDraggingEventArgs e)
{
if (e.Action == DragAction.Drop)
{
Device.BeginInvokeOnMainThread(() => ListView.RefreshListViewItem(e.OldIndex, e.NewIndex, true));
}
}
private void TappedGestureCommandMethod(object obj)
{
var tappedItemData = obj as Contact;
if (TappedItem != null && TappedItem.IsVisible)
{
var previousIndex = listView.DataSource.DisplayItems.IndexOf(TappedItem);
TappedItem.IsVisible = false;
if (Device.RuntimePlatform != Device.macOS)
{
Device.BeginInvokeOnMainThread(() => { listView.RefreshListViewItem(previousIndex, previousIndex, false); });
}
}
if (TappedItem == tappedItemData)
{
if (Device.RuntimePlatform == Device.macOS)
{
var previousIndex = listView.DataSource.DisplayItems.IndexOf(TappedItem);
Device.BeginInvokeOnMainThread(() => { listView.RefreshListViewItem(previousIndex, previousIndex, false); });
}
TappedItem = null;
return;
}
TappedItem = tappedItemData;
TappedItem.IsVisible = true;
if (Device.RuntimePlatform == Device.macOS)
{
var visibleLines = listView.GetVisualContainer().ScrollRows.GetVisibleLines();
var firstIndex = visibleLines[visibleLines.FirstBodyVisibleIndex].LineIndex;
var lastIndex = visibleLines[visibleLines.LastBodyVisibleIndex].LineIndex;
Device.BeginInvokeOnMainThread(() => { listView.RefreshListViewItem(firstIndex, lastIndex, false); });
}
else
{
var currentIndex = listView.DataSource.DisplayItems.IndexOf(tappedItemData);
Device.BeginInvokeOnMainThread(() => { listView.RefreshListViewItem(currentIndex, currentIndex, false); });
}
}
void TapGestureRecognizerDelete_Tapped(System.Object sender, System.EventArgs e)
{
sfListRoutePoints.ResetSwipe(true);
var selectedItem = ((Xamarin.Forms.TappedEventArgs)e).Parameter;
AutoGeneratedPoint selectedPoint = (AutoGeneratedPoint)selectedItem;
var indexItem = _listView.DataSource.DisplayItems.IndexOf(selectedPoint);
selectedPoint.IsDeleted = !selectedPoint.IsDeleted;
Device.BeginInvokeOnMainThread(() => {
_listView.RefreshListViewItem(indexItem, indexItem, true);
_vm.UpdateRouteInfo();
});
}
private void ResizeHeaderFooter(object obj)
{
list = obj as SfListView;
var maxFont = Device.Idiom == TargetIdiom.Phone ? MaxPhone : MaxTablet;
var minFont = (Device.Idiom == TargetIdiom.Phone) ? MinPhone : MinTablet;
if (FontSize >= maxFont)
{
FontSize = minFont;
}
else
{
FontSize += 10;
}
list.RefreshListViewItem(-1, -1, true);
}
private void ListView_ItemTapped(object sender, Syncfusion.ListView.XForms.ItemTappedEventArgs e)
{
var groupResult = e.ItemData as GroupResult;
if (e.ItemType is ItemType.GroupHeader)
{
foreach (var item in groupResult.Items)
{
if (!(item as Contacts).IsHeaderTapped)
{
(item as Contacts).IsHeaderTapped = true;
}
else
{
(item as Contacts).IsHeaderTapped = false;
}
}
listView.RefreshListViewItem(-1, -1, true);
}
}