void UpdateItems()
{
CurrentItems = GetSwipedItems();
var itemsLayout = new XStackLayout
{
Spacing = 0,
Orientation = IsHorizontalSwipe ? StackOrientation.Horizontal : StackOrientation.Vertical,
FlowDirection = SwipeDirection == SwipeDirection.Left ? FlowDirection.RightToLeft : FlowDirection.LeftToRight
};
foreach (var item in CurrentItems)
{
View itemView = null;
if (item is SwipeItem switem)
{
itemView = CreateItemView(switem, !IsHorizontalSwipe);
}
else if (item is SwipeItemView customItem)
{
itemView = CreateItemView(customItem);
}
else
{
continue;
}
var tap = new TapGestureRecognizer();
tap.Command = item.Command;
tap.CommandParameter = item.CommandParameter;
tap.Tapped += (s, e) =>
{
if (item is ISwipeItem swipeItem)
{
swipeItem.OnInvoked();
}
if (item is SwipeItemView customSwipeItem)
{
customSwipeItem.OnInvoked();
}
if (CurrentItems.SwipeBehaviorOnInvoked != SwipeBehaviorOnInvoked.RemainOpen)
{
Application.Current.Dispatcher.Dispatch(() =>
{
_ = SwipeCloseAsync();
});
}
};
itemView.GestureRecognizers.Add(tap);
if (IsHorizontalSwipe)
{
itemView.HorizontalOptions = LayoutOptions.Start;
itemView.VerticalOptions = LayoutOptions.Fill;
}
else
{
itemView.VerticalOptions = LayoutOptions.Start;
itemView.HorizontalOptions = LayoutOptions.Fill;
}
itemsLayout.Children.Add(itemView);
}
var itemsRenderer = Platform.GetOrCreateRenderer(itemsLayout);
(itemsRenderer as ILayoutRenderer)?.RegisterOnLayoutUpdated();
var measured = itemsLayout.Measure(Element.Width, Element.Height);
MaximumSwipeSize = Forms.ConvertToScaledPixel(
IsHorizontalSwipe ?
Math.Min(measured.Request.Width, Element.Width) :
Math.Min(measured.Request.Height, Element.Height));
Control.Children.Add(itemsRenderer.NativeView);
var itemsGeometry = NativeView.Geometry;
if (SwipeDirection == SwipeDirection.Up)
{
itemsGeometry.Y += (itemsGeometry.Height - MaximumSwipeSize);
}
itemsRenderer.NativeView.Geometry = itemsGeometry;
itemsRenderer.NativeView.StackBelow(Platform.GetRenderer(SwipeView.Content).NativeView);
_itemsRenderer = itemsRenderer;
}
void OnPromptRequested(Page sender, PromptArguments args)
{
// Verify that the page making the request is child of this platform
if (!_platform.PageIsChildOfPlatform(sender))
{
return;
}
var prompt = Native.Dialog.CreateDialog(Forms.NativeParent, (args.Accept != null));
prompt.Title = args.Title;
var entry = new Entry
{
MinimumWidthRequest = 200,
HorizontalOptions = LayoutOptions.Fill,
BackgroundColor = Color.FromRgb(250, 250, 250),
TextColor = Color.FromRgb(0, 0, 0),
Keyboard = args.Keyboard,
};
if (!string.IsNullOrEmpty(args.Placeholder))
{
entry.Placeholder = args.Placeholder;
}
if (args.MaxLength > 0)
{
entry.MaxLength = args.MaxLength;
}
var layout = new XStackLayout
{
Spacing = 10,
Children =
{
new Label
{
LineBreakMode = LineBreakMode.CharacterWrap,
TextColor = DeviceInfo.Idiom == DeviceIdiom.Watch ? Color.FromRgb(255, 255, 255) : Application.AccentColor,
Text = args.Message,
HorizontalOptions = LayoutOptions.Fill,
HorizontalTextAlignment = TextAlignment.Center,
#pragma warning disable CS0612 // Type or member is obsolete
FontSize = Device.GetNamedSize(NamedSize.Subtitle, typeof(Label)),
#pragma warning disable CS0612 // Type or member is obsolete
},
entry,
}
};
layout.Parent = sender;
var layoutrenderer = Platform.GetOrCreateRenderer(layout);
var request = layout.Measure(DeviceInfo.Idiom == DeviceIdiom.Watch ? sender.Width * 0.7 : sender.Width, sender.Height);
(layoutrenderer as ILayoutRenderer).RegisterOnLayoutUpdated();
layoutrenderer.NativeView.MinimumHeight = Forms.ConvertToScaledPixel(request.Request.Height);
layoutrenderer.NativeView.MinimumWidth = Forms.ConvertToScaledPixel(request.Request.Width);
prompt.Content = layoutrenderer.NativeView;
var cancel = new EButton(prompt)
{
Text = args.Cancel
};
prompt.NegativeButton = cancel;
cancel.Clicked += (s, evt) =>
{
args.SetResult(null);
prompt.Dismiss();
};
if (args.Accept != null)
{
var ok = new EButton(prompt)
{
Text = args.Accept
};
prompt.NeutralButton = ok;
ok.Clicked += (s, evt) =>
{
args.SetResult(entry.Text);
prompt.Dismiss();
};
}
entry.Completed += (s, e) =>
{
args.SetResult(entry.Text);
prompt.Dismiss();
};
prompt.BackButtonPressed += (s, evt) =>
{
prompt.Dismiss();
};
prompt.Show();
_alerts.Add(prompt);
prompt.Dismissed += (s, e) => _alerts.Remove(prompt);
}