[Navigator] _popN does not update routeStack state

[kyle-ssg]

The navigator keeps the routestack in state, this seems to be used by getCurrentRoutes. I noticed this gets updated on push but not pop/popN.

I'd expect a state update similar to the following:
this.setState({
idStack: nextIDStack,
routeStack: nextStack,
sceneConfigStack: nextAnimationConfigStack,
updatingRangeStart: nextStack.length - 1,
updatingRangeLength: 1,
});

[chirag04]

@ericvicenti can help here. Can be a serious bug for performance.

[chirag04]

I just did a small test can't get to replicate this though. Mind sharing a fiddle on rnplay?

[ericvicenti]

Agreed- a simplified example on RNPlay would be great to see

Currently, (and I agree that it's not ideal,) the Navigator will only remove the popped routes once the pop animation completes.

[brentvatne]

New Navigator is in progress, you can comment on it here: https://github.com/ericvicenti/navigation-rfc