protected override void OnPropertyChanged(string propertyName = null)
{
base.OnPropertyChanged(propertyName);
if (propertyName == BGColorProperty.PropertyName)
{
BackgroundColor = BGColor;
}
else if (propertyName == IconSrcProperty.PropertyName)
{
Icon.Source = IconSrc;
}
else if (propertyName == OnClickCommandProperty.PropertyName ||
propertyName == ExtraCommandProperty.PropertyName)
{
onTap.Command = new Command(() =>
{
OnClickCommand.Execute(null);
if (ExtraCommand != null)
{
ExtraCommand.Execute(null);
}
});
if (!GestureRecognizers.Contains(onTap))
{
GestureRecognizers.Add(onTap);
}
}
}
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);
}
}
}
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);
}
}
}
