[Bug] StateLayout never go back to normal state

[PaulP92]

StateLayoutController does not store the original content, because previousState is now nullable:

XamarinCommunityToolkit/src/CommunityToolkit/Xamarin.CommunityToolkit/Views/StateLayout/StateLayoutController.shared.cs

Line 14 in aba6205

LayoutState? previousState;

When switching to a template the if statement is wrong:

XamarinCommunityToolkit/src/CommunityToolkit/Xamarin.CommunityToolkit/Views/StateLayout/StateLayoutController.shared.cs

Lines 58 to 65 in aba6205

	// Put the original content somewhere where we can restore it.
	if (previousState == LayoutState.None)
	{
	originalContent = new List<View>();
	foreach (var item in layout.Children)
	originalContent.Add(item);
	}

Either change previousState back to non-nullable or add null-check to the if statement.

You can test it in the Sample App. Just click the "Show Fullscreen Loader", when going back to normal state the screen is blank.

[JoacimWall]

I have this issue also.

[jpmirfcb]

Me too...

[Cfun1]

I believe it is cleaner to initialize the previousState field with LayoutState.None value instead of doing a null check.

[rubiktubik]

Is there a workaround to prevent a blank screen? Without reverting to 1.0.3 ?

[PaulP92]

Maybe if you use another LayoutState for your normal State, like LayoutState.Success.

[AndreiMisiukevich]

Is there a workaround to prevent a blank screen? Without reverting to 1.0.3 ?

only by using reflection that is not good.
I merged a fix, it will be available in the next release