Fixed data tracks failing to load in apps minified with R8 - #1023
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davidliu merged 1 commit intoSep 16, 2026
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The data track bindings call Rust through JNA. libjnidispatch resolves JNA's classes and fields by name, and JNA reads the bindings' Structure and Callback subclasses reflectively, but neither JNA nor livekit-uniffi-android ships keep rules, so R8 renamed or stripped them and the native library failed to load. Added the rules from JNA's FAQ to the consumer rules.
adrian-niculescu
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MaxHeimbrock,
davidliu and
xianshijing-lk
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September 16, 2026 10:46
🦋 Changeset detectedLatest commit: 0b09bea The changes in this PR will be included in the next version bump. This PR includes changesets to release 1 package
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In an app built with R8 minification, data tracks never become available:
publishDataTrackfails with "Data tracks are unavailable: the native library failed to load", and remote data tracks are never discovered. The log showsUnsatisfiedLinkError: Can't obtain peer field ID for class com.sun.jna.Pointeron the first join.The data track bindings in livekit-uniffi-android call Rust through JNA. libjnidispatch resolves JNA's classes and fields by name, and JNA reads the bindings'
StructureandCallbacksubclasses reflectively. Neither JNA's AAR nor livekit-uniffi-android ships keep rules (the latter'sconsumer-rules.prois empty), so R8 renames or strips them. This adds the rules from JNA's FAQ to the SDK's consumer rules. They could also live in livekit-uniffi-android'sconsumer-rules.pro.Tested with a minified release app that depends on the SDK and creates a
RemoteDataTrackManager, on an Android 17 emulator: without the rules it fails with the error above, with them the manager is created and calls into the native library go through.