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Summary:
I am using ReactNative in a hybrid App.
We have a setup like so:
Native Navigation Controller
Native Tab Controller
Native View Controller wrapping React
React Navigation Controller
React View Controller 1
React View Controller 2
Native View Controller 2.
When I pop Native View Controller 2 off the Navigation stack, I get a seg fault on this line:
NSUInteger indexOfFrom = [_currentViews indexOfObject:fromController.navItem];
I believe what's happening:
Your code is listening to Nav Controller transitions, assuming that they are all from React Native Nav Controllers.
You are catching this one instead, which is actually a Native Nav Controller transition.
You start trying to access the pushed/popped view controllers as if they were react native view controllers.
In this case, the view controllers are not react native -> no navItem field -> seg fault.
Solution: if we are catching this transition but it isn't from our react native nav controller, just
Closes https://github.com/facebook/react-native/pull/5495
Reviewed By: svcscm
Differential Revision: D2857473
Pulled By: nicklockwood
fb-gh-sync-id: cc7f0a16e2e0cea56ca9e49bcb87db4ebd3a0905