fix: Break circular reference in NativeProxy and AndroidUIScheduler
#6697
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tjzel
reviewed
Dec 24, 2024
...c/reactNativeVersionPatch/NativeProxyFabric/latest/com/swmansion/reanimated/NativeProxy.java
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...act-native-reanimated/android/src/main/java/com/swmansion/reanimated/AndroidUIScheduler.java
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| // Module might be already destroyed. | ||
| if (!javaPart_) { | ||
| return; | ||
| } |
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I'm not a fan of checking this every time, but it sure is the best way if we don't want any refactors here. However, I'd much prefer something among the lines for transparency:
Suggested change
| // Module might be already destroyed. | |
| if (!javaPart_) { | |
| return; | |
| } | |
| if (invalidated) { | |
| return; | |
| } |
What do you think?
piaskowyk
approved these changes
Jan 9, 2025
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Summary
Breaks circular reference in
NativeProxyandAndroidUIScheduler.Needs #6671 to work.
NativeProxyandAndroidUIScheduleris aHybridClasswith a C++ counterpart holding a global reference to the Java object. This structure creates a circular reference between C++ and Java, which the garbage collector cannot clean up. To resolve this issue, I manually removed the reference between C++ and Java by resetting the global ref during the invalidation of theNativeProxyandAndroidUIScheduler.Test plan
I tested it with a new project using Expo (SDK 52) and with Fabric enabled. I reloaded the app several times and performed a heap dump to verify that everything was removed correctly.