Singleton MapView on RN

[cristian-situm]

No description provided.

[vlkpa]

Hi @cristian-situm,

I'm experiencing the same issue this PR aims to solve - multiple WebView instances being created when navigating to a MapView screen in a StackNavigator, which leads to app crashes due to memory exhaustion.

I manually applied the persistOnUnmount changes from this PR (WebViewProvider, PersistentWebView, and the MapView portal logic) to my integration, but unfortunately it didn't resolve the issue. The WebView is still being recreated multiple times when navigating to the map screen.

When rendering the MapView directly as a root page (outside navigation), it works correctly with a single WebView instance. The problem only occurs when it's rendered within a StackNavigator.

Could you please provide guidance on:

1. When this PR might be merged?
2. If there are any additional configuration steps needed beyond wrapping the app with WebViewProvider and setting persistOnUnmount: true?

Thank you

[cristian-situm]

Hi @vlkpa,
Our support team will send you information to help you out with the integration via email.

Thank you,
Cristian