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Hello,
I've a Shell-based XF app and upgraded recently from 4.6.0.847 to (currently) 5.0.0.1931.
On some page, I handle a tap event like that:
void OnEditClicked(System.Object sender, System.EventArgs e)
{
// Additional security check
if (!(viewModel.Person.CanEdit ?? false))
return;
var editProfilePage = new EditProfilePage
{
BindingContext = new PersonEditProfileViewModel(App.PhoneFeatureService, App.Service, viewModel.Person)
};
// Trick to get a modal yet with toolbar and title:
Navigation.PushModalAsync(new NavigationPage(editProfilePage));
}
The code is properly executed but Navigation.PushModalAsync does... nothing! I tried to remove my trick with the NavigationPage but it does not help either.
Tried to replace with Application.Current.MainPage.Navigation.PushModalAsync but does not help either.
If I replace with a standard Navigation.PushAsync(), thus no modal, then the page shows up, but naturally I need the modal behaviour.
Any idea?
Upgrading to XF 5.0.0.2012 fixes the problem as I reported in the bug tracker (https://github.com/xamarin/Xamarin.Forms/issues/13741#issuecomment-778748400). So the problem was indeed a bug in XF and not in my own code but unfortunately I couldn't find the fixing commit in the history between XF 5.0.0.1931 and XF 5.0.0.2012.
Hello,
Welcome to Microsoft Q&A!
Try to replace
Navigation.PushModalAsync(new NavigationPage(editProfilePage));
With
Shell.Current.Navigation.PushModalAsync(new NavigationPage(new editProfilePage()));
It works fine on my side .
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Thanks @Cole Xia (Shanghai Wicresoft Co,.Ltd.) but unfortunately it does not help at all, exactly the same behaviour. Maybe one addition, although those calls do not show any modal, it looks like after tapping such a text, "some" standard views don't load anymore, but not all, I'd say those in the relation stack of the faulty one.
It's weird ,kindly raise your problem here : https://github.com/xamarin/Xamarin.Forms/issues.It's better to attach a reproducible sample .
Yes, I know that providing a sample project is always best but I fear this is just infeasible, I thus need to blindly debug and test around on my own if this doesn't ring a bell to someone as my project is using tons of third-party components and I'm pretty sure that "it will work" if I try to reproduce with a dumb sample project and preparing the minimal example will hopefully lead me to finding a workaround.
When this happens to me it's 99% of the time a XAML error in the next page that you are trying to load.
Most of the times for me it's because I use a {StaticResource} that doesn't exist or is mispelled...
I use Prism and this code helps print out what's wrong:
var result = await NavigationService.NavigateAsync(path);
if (!result.Success)
{
System.Diagnostics.Debug.WriteLine(result.Exception.ToString());
}