Android released aab file, not showing theme colors / images

[digger73]

Hi
I have an UNO app that is build in azure pipeline using a script that performs:dotnet publish -f:net9.0-android -p:TargetFrameworkOverride=net9.0-android -c:Release -o ./publish
Afterwards the aab is signed and then I manually upload it to google playstore for internal test. The problem is, that when downloaded to the mobile it doesn't show the theme correctly, images are missing along with some coloring.
If I create a release on my pc and install the apk on the mobile everything seems to work correctly.

What I have seen in the logcat log when running the installed aab file, that isn't occurring for apk is:

03-04 14:12:23.377  5176  5176 W ziparchive: Unable to open '/data/app/~~7KhvAb0Tt8dc1ouiy81gOw==/com.foo.bar-gqbcz0ocn09rtobOG-GObg==/split_config.da.dm': No such file or directory
03-04 14:12:23.377  5176  5176 W ziparchive: Unable to open '/data/app/~~7KhvAb0Tt8dc1ouiy81gOw==/com.foo.bar-gqbcz0ocn09rtobOG-GObg==/split_config.da.dm': No such file or directory
03-04 14:12:23.377  5176  5176 W m.foo.bar: Entry not found
03-04 14:12:23.378  5176  5176 W ziparchive: Unable to open '/data/app/~~7KhvAb0Tt8dc1ouiy81gOw==/com.foo.bar-gqbcz0ocn09rtobOG-GObg==/split_config.en.dm': No such file or directory
03-04 14:12:23.378  5176  5176 W ziparchive: Unable to open '/data/app/~~7KhvAb0Tt8dc1ouiy81gOw==/com.foo.bar-gqbcz0ocn09rtobOG-GObg==/split_config.en.dm': No such file or directory
03-04 14:12:23.378  5176  5176 W m.foo.bar: Entry not found
03-04 14:12:23.378  5176  5176 W ziparchive: Unable to open '/data/app/~~7KhvAb0Tt8dc1ouiy81gOw==/com.foo.bar-gqbcz0ocn09rtobOG-GObg==/split_config.x86_64.dm': No such file or directory
03-04 14:12:23.378  5176  5176 W ziparchive: Unable to open '/data/app/~~7KhvAb0Tt8dc1ouiy81gOw==/com.foo.bar-gqbcz0ocn09rtobOG-GObg==/split_config.x86_64.dm': No such file or directory
03-04 14:12:23.378  5176  5176 W m.foo.bar: Entry not found
03-04 14:12:23.378  5176  5176 W ziparchive: Unable to open '/data/app/~~7KhvAb0Tt8dc1ouiy81gOw==/com.foo.bar-gqbcz0ocn09rtobOG-GObg==/split_config.xxhdpi.dm': No such file or directory
03-04 14:12:23.378  5176  5176 W ziparchive: Unable to open '/data/app/~~7KhvAb0Tt8dc1ouiy81gOw==/com.foo.bar-gqbcz0ocn09rtobOG-GObg==/split_config.xxhdpi.dm': No such file or directory

I have not been able to find any information, regarding this problem. And I don't even know if the above is related to the problem, but as far as I can see it is the only difference from the apk and aab install, when running the app. I have tried both on emulator and mobile, same result.

[jeromelaban]

Thanks for the question.

This is not an issue we've encountered so far. How are you including the images in the app, in your project?

[jeromelaban]

Thanks, indeed, there's nothing that stands out of the ordinary. In general, this kind of behavior is the result of an exception happening at the wrong place, causing the initialization of Uno to stop and cause visual glitches.

You may want to try and reduce your app's code until it works again, for instance by removing any app logic and keep UI code only.

[digger73]

Code execution hopefully doesn't change when compiled for aab compared to apk, so it seems strange that this should be the cause ? Doesn't it more seem like a package issue ?

[jeromelaban]

This may not be a packaging issue, but rather a running environment execution issue. Simplifying your app until it works again is best to understand the issue.

[digger73]

Just tried creating apk file from the aab file using bundletool and then deploying the apk to my mobile. This works without problems, but uploading the same aab to google store gives the strange result. Maybe I'm not fully understanding this, but I would expect that the compiled code running should be the same ?

[jeromelaban]

Just an update on this, after trying several things etc. the solution is to disable trimming for android in release mode. Then the colors are working correctly. So it seems to be related to be compiler / package related.

The linker is automatically enabled in Release. And as the app behaves differently, this means that there's an exception somewhere that is not showing up. You can configure the linker with this documentation.

[digger73]

Hi

An example is:

<StackPanel HorizontalAlignment="Center"
        VerticalAlignment="Center">
    <StackPanel>
        <Image Source="/Assets/Images/Logo-white.png"
           Style="{StaticResource LogoImageStyle}"/>
    </StackPanel>
</StackPanel>

And build action on the image is content. The strange thing is it works when building the apk file in release mode locally but the aab file build in azure gives the strange results.

Update
Actually that image seems to be shown, the theme coloring just isn't applied correctly on the pages, compared to an installed apk.

[digger73]

Just an update on this, after trying several things etc. the solution is to disable trimming for android in release mode. Then the colors are working correctly. So it seems to be related to be compiler / package related.
@jeromelaban I don't know if this is due to some configuration issues related to the android project ?, but it works without trimming.