flutter_mapbox_navigation
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eopeter
MapBoxNavigation directions returning null for remaining duration and distance
On iOS MapBoxNavigation directions are returning null for the remaining duration and distance for embedded turn by turn navigation.
When I print the value of progress.distanceRemaining in the NavigationFactory.swift it returns correct values but I can’t find the way to access it on the dart side.
Me too, in my OnRoutEvent I receive that my distanceRemaining and durationRemaining is null, I´m working with Android, after this I get an exception in the console
@lasd14 this issue is probably the issue on the dart side. You are working with asynchronous methods and non-nullable variables so you might have forgotten to use await somewhere, therefore you are facing an issue above.
I have managed to solve the issue mentioned above on the native iOS side by saving progress.distanceRemaining and progress.durationRemaining (NavigationFactory.swift file) in global variables. Then I use these same variables in SwiftFlutterMapboxNavigationPlugin.swift to communicate it with Flutter.
Unfortunately, I am no iOS native developer myself and I think that this is far from good practice, therefore I will not make a PR for this issue but for now until this issue is not addressed it will make the job for my purposes.
Thank you for your answer @vpalcar, I´ll check my code and try to fix the error
[ERROR:flutter/lib/ui/ui_dart_state.cc(209)] Unhandled Exception: type 'Null' is not a subtype of type 'FutureOr
Flutter embeded mapbox navigation view widget MapBoxNavigationView() is not working. Even i have paste the example (https://pub.dev/packages/flutter_mapbox_navigation/example) code given in the package and also got the same error. I don't think that the example is also working. Please give some solution i am stuck here from last 2 months.
E/flutter ( 7987): [ERROR:flutter/lib/ui/ui_dart_state.cc(209)] Unhandled Exception: type 'Null' is not a subtype of type 'FutureOr
