microspaze / carouselview.maui Goto Github PK

When the position is updated in code behind, the animation will always be the same and want go back and forth if the item the position is updated by the code behind. The bug can pe reproduced by running the sample of the repository on an iOS device. When scrolling the horizontal Carousel back and forth, the vertical Carousel will be updated but always using the animation in the same direction. The same can be observed if you scroll the vertical Carousel back and forth, then the horizontal Carousel will update it's content but always using the same side for the animation.

First of all, thank you for migrating CarouselView to MAUI!

We faced with a crash, when using regular navigation in the .NET MAUI App project, e.g:
MainPage = new NavigationPage(new MainPage()); (imagine MainPage contains CarouselView)

Java.Lang.NullPointerException crash happens in CarouselViewRenderer.SetNativeView on Android.

It happens because context is StackNavigationManager_StackContext which derives from AndroidX.AppCompat.View.ContextThemeWrapper but CarouselViewRenderer.FindActivity method expects Android.Views.ContextThemeWrapper. So, FindActivity returns null and NullPointerException occurs in CarouselViewRenderer.SetNativeView method.

You can reproduce this issue on the sample project attached.
NullPointerCrashDemo.zip

A FIX is to use Android.Content.ContextWrapper class which contains BaseContext we are looking for and is base class for both AndroidX.AppCompat.View.ContextThemeWrapper and Android.Views.ContextThemeWrapper.

I will create a fork with fix to speed up fix of this issue.

Will appreciate if you can handle it as soon as possible.

Regards,
Vitalii

Hi,

Is it possible to upgrade the package to support .NET8?