public void AddHorizontalConstraintsToSuperviewWidth()
{
if (base.Superview == null)
{
return;
}
UIView child = this;
Superview.AddConstraints(NSLayoutConstraint.FromVisualFormat("H:|[child]|", 0, null,
NSDictionary.FromObjectAndKey(child, new NSString("child"))));
}
private void InsertSubview(UIView view)
{
Superview.InsertSubviewBelow(view, this);
var verticalConstraint = NSLayoutConstraint.Create(this, NSLayoutAttribute.CenterY, NSLayoutRelation.Equal,
view, NSLayoutAttribute.CenterY, 1, 0);
var leadingConstraint = NSLayoutConstraint.Create(this, NSLayoutAttribute.Leading, NSLayoutRelation.Equal,
view, NSLayoutAttribute.Leading, 1, 0);
var trailingConstraint = NSLayoutConstraint.Create(this, NSLayoutAttribute.Trailing, NSLayoutRelation.Equal,
view, NSLayoutAttribute.Trailing, 1, 0);
Superview.AddConstraints(new[] { verticalConstraint, leadingConstraint, trailingConstraint });
}
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();
};
}