void DismissKeyboardOnTouchPropertyChanged(InfiniteListView bindable, bool oldValue, bool newValue)
{
if (newValue != default(bool))
{
GestureRecognizers.Add(_gestureDismiss);
}
else
{
GestureRecognizers.Remove(_gestureDismiss);
}
}
private void DoubleTapRecognizer_Tapped(object sender, EventArgs e)
{
ResetImage();
MessagingCenter.Send <CustomPanPinchToZoomContainer>(this, "Reset");
if (panGestureRecognizer != null)
{
GestureRecognizers.Remove(panGestureRecognizer);
}
}
public void Dispose()
{
foreach (var childTreeViewItem in _ItemsSource)
{
childTreeViewItem.Dispose();
}
Children.Clear();
_ItemsSource.CollectionChanged -= ItemsSource_CollectionChanged;
_TapGestureRecognizer.Tapped -= TapGestureRecognizer_Tapped;
_ExpandButton.Clicked -= ExpandButton_Clicked;
GestureRecognizers.Remove(_TapGestureRecognizer);
}
private void UpdateInteraction()
{
if (_textElement == null)
{
return;
}
if (SearchMode == SearchModes.None || IsFullScreen())
{
_textElement.IsVisible = false;
_textElement.InputTransparent = true;
_textElement.IsEnabled = false;
if (_tapGesture == null)
{
_tapGesture = new TapGestureRecognizer();
_tapGesture.Tapped += OnTapped;
}
if (GestureRecognizers.Contains(_tapGesture) == false)
{
GestureRecognizers.Add(_tapGesture);
}
}
else
{
bool isActive = IsFullScreen() == false;
if (isActive)
{
_textElement.IsVisible = true;
_textElement.InputTransparent = false;
_textElement.IsEnabled = true;
}
else
{
_textElement.IsVisible = false;
_textElement.InputTransparent = true;
_textElement.IsEnabled = false;
}
if (_tapGesture != null && GestureRecognizers.Contains(_tapGesture))
{
GestureRecognizers.Remove(_tapGesture);
}
}
}
protected override void OnPropertyChanged([CallerMemberName] string propertyName = null)
{
base.OnPropertyChanged(propertyName);
if (propertyName == nameof(TapCommand))
{
if (_tapCommand != null)
{
GestureRecognizers.Remove(_tapCommand);
}
_tapCommand = new TapGestureRecognizer
{
Command = TapCommand
};
GestureRecognizers.Add(_tapCommand);
}
}
private void SvgImage_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
{
// Fix a known issue in ListView where ItemTapped event doesn't get fired if the list view item template has a tap gesture while it also uses
// ContextActions like long press action to show some menu items, in this case when we add the SvgImage inside list view item template the list
// view item will NOT receive the ItemTapped event and so the item will not be clickable, this workaround will fix it by checking for the
// SvgImage.IsEnabled property, you need to set it to FALSE when you use the SvgImage inside list view item template.
if (e.PropertyName.Equals(IsEnabledProperty.PropertyName))
{
if (IsEnabled)
{
if (!GestureRecognizers.Contains(_tapGestureRecognizer))
{
GestureRecognizers.Add(_tapGestureRecognizer);
}
}
else
{
GestureRecognizers.Remove(_tapGestureRecognizer);
}
}
}
private void RemoveEventHandlers()
{
imageTapGesture.Tapped -= ImageTapGesture_OnTapped;
GestureRecognizers.Remove(imageTapGesture);
}