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Windows, VS2017, Xamarin.Forms 18.104.22.16871-pre2 project based on .NET Standard
- Create a blank Forms app and add UWP as a target platform.
- In the generated Mainpage.cs override OnAppearing() and OnDisappearing() and put log statements into them
- In Main.xaml.cs set the MainPage property to a "new NavigationPage(new MainPage())"
- Run the app on Windows 10 locally
- Notice how OnAppearing() is called, followed immediately by OnDisappearing()
Correct call of lifecycle methods. OnDisappearing should not be called in this scenario.
- Removing the NavigationPage() fixes the problem
Demo project is attached.
Created attachment 25617 [details]
I know that it is confirmed, but since I'm having this issue I just would like to +1 here :)
+1 for this. I struggled long and hard with this issue.
I also stumbled over this. As I already built a repro project before searching here, I also raised a GitHub Issue https://github.com/xamarin/Xamarin.Forms/issues/1602. Maybe that makes them more aware of the problem.
Should be fixed on 2.6.0-pre1