internal void HandleAction(int tag)
{
clickedtag = tag;
switch (tag)
{
case 1:
model = new PickerModel(displaymodelist);
break;
case 2:
model = new PickerModel(positionlist);
break;
case 3:
model = new PickerModel(selectionindicatorlist);
break;
case 4:
model = new PickerModel(overflowlist);
break;
}
model.PickerChanged -= PickerIndexChanged;
model.PickerChanged += PickerIndexChanged;
picker.Model = model;
picker.ReloadAllComponents();
doneButton.Hidden = false;
picker.Hidden = false;
BecomeFirstResponder();
}
void SetItemsSource()
{
if (Element.ItemsSource == null)
{
return;
}
var itemCount = Element.ItemsSource.Cast <object>().ToList().Count;
if (itemCount > 0)
{
for (var i = 0; i < itemCount; i++)
{
AddObjectToSource(i);
}
}
if (collectionChanged == null)
{
collectionChanged = (INotifyCollectionChanged)Element.ItemsSource;
collectionChanged.CollectionChanged += (s, ev) =>
{
if (Element == null || Control == null)
{
return;
}
if (ev.Action == NotifyCollectionChangedAction.Add)
{
AddObjectToSource(ev.NewStartingIndex);
}
else if (ev.Action == NotifyCollectionChangedAction.Reset)
{
if (pickerModel != null)
{
pickerModel.ResetData();
picker.ReloadAllComponents();
//Adapter.NotifyDataSetChanged();
//isReset = true;
}
}
};
}
}
/// <summary>
/// Updates the picker.
/// </summary>
private void UpdatePicker()
{
Control.Placeholder = Element.Title;
Control.Text = (Element.SelectedIndex <= -1 || Element.Items == null) ? "" : Element.Items[Element.SelectedIndex];
_picker.ReloadAllComponents();
if (Element.SelectedIndex > -1 && Element.Items != null && Enumerable.Any <string>(Element.Items))
{
_picker.Select(Element.SelectedIndex, 0, true);
}
}
void UpdateItems()
{
var items = _TextPickerCell.Items ?? new List <object>();
_model.SetItems(items);
// Force picker view to reload data from model after change
// Otherwise it might access the model based on old view data
// causing "Index was out of range" errors and the like.
_picker.ReloadAllComponents();
Select(_TextPickerCell.SelectedItem);
}
void UpdatePicker()
{
var selectedIndex = Element.SelectedIndex;
var items = Element.Items;
_picker.ReloadAllComponents();
if (items == null || items.Count == 0)
{
return;
}
UpdatePickerSelectedIndex(selectedIndex);
}
public override void Selected(UIPickerView pickerView, nint row, nint component)
{
if (_styledPicker.SelectedItems.Count > 0 && _styledPicker.SelectedItems.Count >= (int)component)
{
_styledPicker.SelectedItems[(int)component] = (_styledPicker.ItemsSource[(int)component][(int)row]);
}
else
{
_styledPicker.SelectedItems.Add(_styledPicker.ItemsSource[(int)component][(int)row]);
}
_currentSelected = row;
pickerView.ReloadAllComponents();
}
void UpdatePicker()
{
var selectedIndex = Element.SelectedIndex;
var items = Element.Items;
Control.Placeholder = Element.Title;
var oldText = Control.Text;
Control.Text = selectedIndex == -1 || items == null ? "" : items[selectedIndex];
UpdatePickerNativeSize(oldText);
_picker.ReloadAllComponents();
if (items == null || items.Count == 0)
{
return;
}
UpdatePickerSelectedIndex(selectedIndex);
}
void ItemChanged()
{
if (model != null)
{
model.CustomSelectionChanged -= Model_SelectedChanged;
}
var title = segmentedControl.TitleAt(segmentedControl.SelectedSegment);
currentAgent = new Agent(title);
agentView.ConfigureAgent(currentAgent);
currentAgent.Animate();
animations = currentAgent.GetAnimations();
model = new AnimationsModel(animations);
pickerView.Model = model;
pickerView.ReloadAllComponents();
model.CustomSelectionChanged += Model_SelectedChanged;
}
UIAlertController CreateAlert(UITextField uITextField)
{
var paddingTitle = 0;
if (!string.IsNullOrEmpty(VirtualView.Title))
{
paddingTitle += 25;
}
var pickerHeight = 240;
var frame = new RectangleF(0, paddingTitle, 269, pickerHeight);
var pickerView = new UIPickerView(frame);
pickerView.Model = new PickerSource(VirtualView);
pickerView?.ReloadAllComponents();
var pickerController = UIAlertController.Create(VirtualView.Title, "", UIAlertControllerStyle.ActionSheet);
// needs translation
pickerController.AddAction(UIAlertAction.Create("Done",
UIAlertActionStyle.Default,
action => FinishSelectItem(pickerView, uITextField)
));
if (pickerController.View != null && pickerView != null)
{
pickerController.View.AddSubview(pickerView);
var doneButtonHeight = 90;
var height = NSLayoutConstraint.Create(pickerController.View, NSLayoutAttribute.Height, NSLayoutRelation.Equal, null, NSLayoutAttribute.NoAttribute, 1, pickerHeight + doneButtonHeight);
pickerController.View.AddConstraint(height);
}
var popoverPresentation = pickerController.PopoverPresentationController;
if (popoverPresentation != null)
{
popoverPresentation.SourceView = uITextField;
popoverPresentation.SourceRect = uITextField.Bounds;
}
return(pickerController);
}
public void ReloadAllComponents()
{
_pickerView.ReloadAllComponents();
}
protected void ReloadData()
{
_pickerView.ReloadAllComponents();
}
protected override void Reload()
{
_pickerView.ReloadAllComponents();
_pickerView.Select(0, 0, false);
_pickerView.Select(0, 1, false);
}
