protected override void OnDetachedFromWindow()
{
if (_backPressedEventHandler != null && _window != null)
{
try
{
_window.BackPressed -= _backPressedEventHandler;
_window = null;
_backPressedEventHandler = null;
}
catch (Exception ex)
{
TelemetryExtension.Current?.TrackException(ex);
}
}
base.OnDetachedFromWindow();
}
private bool ShowFull()
{
if (Item == null || !Item.CanExpand())
{
return(false);
}
if (_backPressedEventHandler == null)
{
try
{
// Wire the back press event
_backPressedEventHandler = new WeakEventHandler <CancelEventArgs>(MyBaseEventVisual_BackPressed).Handler;
_window = PortableApp.Current.GetCurrentWindow();
_window.BackPressed += _backPressedEventHandler;
}
catch (Exception ex)
{
TelemetryExtension.Current?.TrackException(ex);
}
}
if (_expandedContainer.ChildCount == 0)
{
_expandedContainer.AddView(GenerateFullContent(Item));
}
_isFullShown = true;
//var dontWait = Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Low, delegate
//{
// if (_isFullShown)
// {
_expandedContainer.Visibility = ViewStates.Visible;
// }
//});
return(true);
}
