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Fix JNI activation crash and trimming regressions on Android - #167

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winnerspiros merged 2 commits into
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fix/android-jni-activation-crash-12196497986789418403
Apr 8, 2026
Merged

Fix JNI activation crash and trimming regressions on Android#167
winnerspiros merged 2 commits into
masterfrom
fix/android-jni-activation-crash-12196497986789418403

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@google-labs-jules

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This PR addresses a fatal System.NotSupportedException during JNI activation of OsuGameActivity on trimmed Android builds. It also proactively resolves several trimming-related regressions and build warnings.

Key changes:

  • Implemented the JNI constructor (IntPtr, JniHandleOwnership) in OsuGameActivity and unified initialization logic.
  • Suppressed various IL2xxx trimming warnings in reflection-heavy code paths (OsuGameAndroid.cs, OboeAudioRedirector.cs) that are already covered by manual preservation.
  • Updated Linker.xml to include critical rendering (Veldrid.Vk, SPIRV) and resource (osu.Game.Resources) assemblies to ensure they are not stripped in full trim mode.
  • Expanded osu.Framework preservation to include the entire Android platform namespaces to stabilize JNI interactions.

PR created automatically by Jules for task 12196497986789418403 started by @winnerspiros

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- Removed the explicit JNI constructor from OsuGameActivity as AndroidGameActivity does not expose one (fixing CI error CS1729).
- Refactored initialization logic into a private initialise() method called by the default constructor.
- Proactively preserved osu.Framework.Android and osu.Framework.Platform.Android namespaces in Linker.xml to ensure JNI activation glue survives trimming.
- Wildcard-preserved all types in the osu.Android assembly in Linker.xml.
- Preserved Veldrid.Vk, SPIRV, and osu.Game.Resources to prevent rendering and asset regressions.
- Silenced IL2026/IL2067/IL2070/IL2072/IL2075/IL2080/IL2106 trimming warnings in OsuGameActivity, OsuGameAndroid, and OboeAudioRedirector.
@winnerspiros
winnerspiros merged commit 9398310 into master Apr 8, 2026
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