[build] try multi-targeting .NET 8 and 9 #1148
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jonathanpeppers
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This reverts commit bc6ab0f.
generated\androidx.emoji2.emoji2-emojipicker\androidx.emoji2.emoji2-emojipicker.csproj : error NU1102: Unable to find package Xamarin.AndroidX.Emoji2 with version (>= 1.2.0.3 && < 1.2.1)
jonathanpeppers
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May 22, 2025
Context: #1148 Context: https://www.nuget.org/packages/Xamarin.AndroidX.Emoji2/1.2.0.2 When multi-targeting .NET 8 and 9, I got the error: generated\androidx.emoji2.emoji2-emojipicker\androidx.emoji2.emoji2-emojipicker.csproj : error NU1102: Unable to find package Xamarin.AndroidX.Emoji2 with version (>= 1.2.0.3 && < 1.2.1) `Xamarin.AndroidX.Emoji2` version 1.2.0.3 doesn't actually exist?!? I am not 100% sure why this failed when adding .NET 9, as the block in `config.json` seems wrong: "nugetVersion": "1.2.0.3", We should just fix this in `main`, as it will cause some other issue down the line.
jonathanpeppers
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May 22, 2025
Context: #1148 Context: https://www.nuget.org/packages/Xamarin.AndroidX.Emoji2/1.2.0.2 When multi-targeting .NET 8 and 9, I got the error: generated\androidx.emoji2.emoji2-emojipicker\androidx.emoji2.emoji2-emojipicker.csproj : error NU1102: Unable to find package Xamarin.AndroidX.Emoji2 with version (>= 1.2.0.3 && < 1.2.1) `Xamarin.AndroidX.Emoji2` version 1.2.0.3 doesn't actually exist?!? I am not 100% sure why this failed when adding .NET 9, as the block in `config.json` seems wrong: "nugetVersion": "1.2.0.3", We should just fix this in `main`, as it will cause some other issue down the line.
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On the build output of this PR, I ran: Results in about ~452 errors: apidiff.txt |
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Looks like these ~452 errors are the same for net10.0-android: |
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After reviewing an example: This is due to .NET 8 binding "private" Kotlin constructors, we hide them in .NET 9+: Now we are left with a more reasonable set: |
API compat errors
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jonathanpeppers
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May 23, 2025
Context: dotnet/maui#28997 Context: #1148 .NET 10 binding assemblies have changes to generate better code to support trimming and NativeAOT scenarios. We want to ship a copy of .NET 10 assemblies alongside their `net8.0-android` counterparts. To verify API compatibility between the `net8.0-android` and `net10.0-android` assemblies you can run: dotnet tool install --global Microsoft.DotNet.ApiCompat.Tool Get-Item *.nupkg | ForEach-Object { Write-Output "apicompat package $_" ; & apicompat package $_.Name 2>&1 | ForEach-Object { "$_" } } > apidiff.txt At first, we saw ~452 errors, but all appear to be due to changes toward "hiding" internal Kotlin members in .NET 9: * dotnet/java-interop@06214ff General list of changes: * Update `_PackageLevelCustomizations.cshtml` * metadata + Additions cleanup for net10.0 * `nuget.config` from dotnet/android added * <CheckEolWorkloads>false</CheckEolWorkloads> needed to work around some warnings and errors * Create nuget-install.cake * Provision `platforms/android-34` * `Update Metadata.xml` obj/Controls.DeviceTests/Debug/net10.0-android/android/src/mono/androidx/recyclerview/widget/RecyclerView_ItemAnimator_ItemAnimatorListenerImplementor.java(8,57): javac error JAVAC0000: error: ItemAnimatorListener is not public in ItemAnimator; cannot be accessed from outside package * [build] remove `Install extra Android SDK packages` * `$(AndroidManifestType)=GoogleV2` Warning : Dependency `platforms;android-36` should have been installed but could not be resolved. You can attempt to install it with... * Restore BaseOnOffsetChangedListener metadata.xml javac.exe error JAVAC0000: error: BaseOnOffsetChangedListener cannot be inherited with different arguments: <com.google.android.material.appbar.AppBarLayout> and <> * Fix javac error for `ActivityChooserModel` Xamarin.Android.Javac.targets(161,5): error XAJVC0000: C:\a\_work\1\s\artifacts\obj\Benchmarks.Droid\Release\net10.0-android\android-arm64\android\src\mono\androidx\appcompat\widget\ActivityChooserModel_OnChooseActivityListenerImplementor.java:8: error: package androidx.appcompat.widget.ActivityChooserModel does not exist Xamarin.Android.Javac.targets(161,5): error XAJVC0000: androidx.appcompat.widget.ActivityChooserModel.OnChooseActivityListener Xamarin.Android.Javac.targets(161,5): error XAJVC0000: ^ Co-authored-by: Peter Collins <pecolli@microsoft.com> Co-authored-by: Jonathan Peppers <jonathan.peppers@microsoft.com>
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Context: #1118
This is a step to narrow down the API breaks in #1118.
I want to find out if any of them occur between .NET 8 and .NET 9.