public override void TouchesEnded(NSSet touches, UIEvent evt)
{
if (string.IsNullOrEmpty(_disabled) && !_confirmed)
{
var point = (touches.AnyObject as UITouch).LocationInView(this.Superview);
if (!Frame.Contains(point))
{
Lighten();
base.TouchesCancelled(touches, evt);
}
else if (Selected)
{
Lighten();
_confirmed = true;
_cancelOverlay.RemoveFromSuperview();
_cancelOverlay = null;
base.TouchesEnded(touches, evt);
}
else
{
Lighten();
Selected = true;
_cancelOverlay = UIButton.FromType(UIButtonType.Custom);
_cancelOverlay.Frame = new RectangleF(0, 0, 1024, 1024);
_cancelOverlay.AddTarget(delegate { Cancel(); }, UIControlEvent.TouchDown);
Superview.AddSubview(_cancelOverlay);
Superview.BringSubviewToFront(this);
}
}
}
public void TrackingStarted(object sender, TrackingEventArgs e)
{
var button = (ButtonView)sender;
UIGraphics.BeginImageContext(button.Bounds.Size);
button.Layer.RenderInContext(UIGraphics.GetCurrentContext());
UIImage image = UIGraphics.GetImageFromCurrentImageContext();
UIGraphics.EndImageContext();
if (trackingImageView == null)
{
trackingImageView = new UIImageView(CGRect.Empty);
Superview.AddSubview(trackingImageView);
trackingImageView.Alpha = 0.5f;
}
trackingImageView.Image = image;
trackingImageView.SizeToFit();
CGRect frame = trackingImageView.Frame;
var newFrame = new CGRect(Superview.ConvertPointFromView(button.Frame.Location, this), frame.Size);
trackingImageView.Frame = newFrame;
if (ButtonSelectedEvent != null)
{
ButtonSelectedEvent(button);
}
}
private void initialize()
{
//Make new tableview and do some settings
AutoCompleteTableView = new UITableView();
AutoCompleteTableView.Layer.CornerRadius = 5; //rounded corners
AutoCompleteTableView.ContentInset = UIEdgeInsets.Zero;
AutoCompleteTableView.AutoresizingMask = UIViewAutoresizing.FlexibleWidth | UIViewAutoresizing.FlexibleHeight; //for resizing (switching from table to portait for example)
AutoCompleteTableView.Bounces = false;
AutoCompleteTableView.BackgroundColor = UIColor.Clear;
AutoCompleteTableView.TranslatesAutoresizingMaskIntoConstraints = false;
AutoCompleteTableView.Source = this.AutoCompleteViewSource;
AutoCompleteTableView.TableFooterView = new UIView();
AutoCompleteTableView.Hidden = true;
//Some textfield settings
this.TranslatesAutoresizingMaskIntoConstraints = false;
this.Delegate = this;
this.AutocorrectionType = UITextAutocorrectionType.No;
this.ClearButtonMode = UITextFieldViewMode.WhileEditing;
var isTableViewController = _parentTableViewController ?? (_parentViewController as UITableViewController);
//if parent is tableviewcontroller
if (isTableViewController != null)
{
_parentIsUITableViewController = true;
if (_parentTableViewController == null)
{
_parentTableViewController = isTableViewController;
}
_parentTableViewBounces = _parentTableViewController.TableView.Bounces;
_parentTableViewAllowsSelection = _parentTableViewController.TableView.AllowsSelection;
//Add the view to the contentview of the cell
Superview.AddSubview(AutoCompleteTableView);
UITableViewCell cell = Superview.Superview as UIKit.UITableViewCell;
//Get indexpath to set the constraint to the right cell
NSIndexPath indexPath = _parentTableViewController.TableView.IndexPathForCell(cell);
if (indexPath == null)
{
Console.WriteLine("Should be initialized in the ViewDidAppear and not in the ViewDidLoad!");
return;
}
//add constraints
Superview.AddConstraints(
AutoCompleteTableView.WithSameCenterY(this).Plus((AutocompleteTableViewHeight / 2) + 10 + cell.Frame.Height * indexPath.Row),
AutoCompleteTableView.WithSameWidth(this),
AutoCompleteTableView.WithSameLeft(this),
AutoCompleteTableView.Height().EqualTo(AutocompleteTableViewHeight)
);
}
else
{
Superview.InsertSubviewBelow(AutoCompleteTableView, _parentViewController.View);
//add constraints
Superview.AddConstraints(
AutoCompleteTableView.AtTopOf(this, this.Frame.Height - 5),
AutoCompleteTableView.WithSameWidth(this),
AutoCompleteTableView.WithSameLeft(this),
AutoCompleteTableView.Height().EqualTo(AutocompleteTableViewHeight)
);
}
//listen to edit events
this.EditingChanged += async(sender, eventargs) =>
{
if (this.Text.Length > StartAutoCompleteAfterTicks)
{
showAutoCompleteView();
await UpdateTableViewData();
}
};
this.EditingDidEnd += (sender, eventargs) =>
{
hideAutoCompleteView();
};
}