mrousavy/nitro v0.34.0

Release 0.34.0

on GitHub

0.34.0 (2026-02-26)

❗️ JNI OnLoad (cpp-adapter.cpp) change

For library authors: In your JNI OnLoad function (often in cpp-adapter.cpp), you should migrate to the new initialization API:

 JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM* vm, void*) {
-  return margelo::nitro::$$androidNamespace$$::initialize(vm);
+  return facebook::jni::initialize(vm, []() {
+    margelo::nitro::$$androidNamespace$$::registerAllNatives();
+  });
 }

Nothing really changes if you don't register any custom native JNI classes/functions, and it will also not break if you don't migrate. But it is recommended either way, as this new API allows you to create custom C++ native JNI classes/functions and register them.

✨ Features

• Add createNativeArrayBuffer(size) to NitroModulesProxy (#1226) (c2b4ba4)
• Add lambda argument for custom JNI registrations in initialize…(...) (#1222) (8dde8b8)

🐛 Bug Fixes

• Fall back to ByteBuffer copy if HardwareBuffer copy fails (513a50b)
• Fix has*/is* property names being simplified on Swift/Kotlin (#1223) (47e867d)
• Fix AnyMap canConvert to check values instead of keys (#1163) (23cccba)
• Rename initialize() to registerAllNatives() to be more aligned with fbjni (#1225) (3d4070b)
• Test both C++ and Swift/Kotlin Test Objects with Harness (#1224) (c3d7839)
• Throw if HardwareBuffer-backed ArrayBuffer is non-CPU-readable (#1227) (63aa30c)
• Use AHARDWAREBUFFER_USAGE_CPU_WRITE_OFTEN instead of AHARDWAREBUFFER_USAGE_CPU_WRITE_MASK (044b7fd)