Fix a potential NPE race conditions #1959
Merged
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This PR addresses the issue #1958 , although the crash is pretty hard to reproduce, the enhancement will definitely make it more robust.
The issue was in
com.airbnb.lottie.LottieDrawable#buildCompositionLayer
method.The related code is:
The crash exception stack prints:
As we can see, the exception occurs at composition.getLayers(), but before executing this statement, the LayerParser.parse(composition) statement also refers to the composition object, which was fine, but after that this object had been set to null, thus caused NPE.
I think this issue is very similar to the issues resolved in PR #1917