[regression/8.0.3] AdaptiveTrigger does not work

[JPfahl]

Description

Adaptive triggers do not work.

Steps to Reproduce

Add the following style:

  <Style TargetType="StackLayout">
      <Setter Property="VisualStateManager.VisualStateGroups">
          <VisualStateGroupList>
              <VisualStateGroup>
                  <VisualState x:Name="Vertical">
                      <VisualState.StateTriggers>
                          <AdaptiveTrigger MinWindowWidth="0" />
                      </VisualState.StateTriggers>
                      <VisualState.Setters>
                          <Setter Property="Orientation"
                              Value="Vertical" />
                      </VisualState.Setters>
                  </VisualState>
                  <VisualState x:Name="Horizontal">
                      <VisualState.StateTriggers>
                          <AdaptiveTrigger MinWindowWidth="800" />
                      </VisualState.StateTriggers>
                      <VisualState.Setters>
                          <Setter Property="Orientation"
                              Value="Horizontal" />
                      </VisualState.Setters>
                  </VisualState>
              </VisualStateGroup>
          </VisualStateGroupList>
      </Setter>
  </Style>

Using the following xaml does not respond to the window width changing:

<StackLayout>
    <Labe Text="a"/>
    <Label Text="b"/>
    <Label Text="c"/>
</StackLayout>

Link to public reproduction project repository

No response

Version with bug

8.0.3

Is this a regression from previous behavior?

No, this is something new

Last version that worked well

Unknown/Other

Affected platforms

iOS, Android, Windows

Affected platform versions

windows10.0.22621.0, android 33, ios 17

Did you find any workaround?

No

Relevant log output

No response

[davidortinau]

Not working in latest 7 also. Looks like it was originally fixed in 2022, and regressed somewhere along the way. Or was only fixed for Windows? #9984

Sample: https://github.com/dotnet/maui-samples/blob/main/8.0/Fundamentals/TriggersDemos/WorkingWithTriggers/Views/AdaptiveTriggerDemoPage.xaml

[davidortinau]

Confirmed adaptive triggers on Windows are working with net8.

[klaus-bleck]

I have the same problem. You need to put it in an external ResourceDictionary, e.g. app style. It won't work except you use it directly. Just as your repro shows

[jsuarezruiz]

Could we get an attached sample where reproduce the issue?. Cannot reproduce it with the issue sample code in the main branch:

Maybe is related with the navigation hierarchy?, using Shell or NavigationPage?

[JPfahl]

It works in windows and android only if the style is embedded in the page if it is loaded from a shared resource dictionary it does not. It does not work in ios at all.

[UnusualJustin]

@jsuarezruiz

See https://github.com/UnusualJustin/AdaptiveTriggersBugOnIOS

On iOS, the trigger seems to apply initially on load but ignore device rotations afterwards.