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Base map is not retaining feature layers

Question asked by devkhatri1 on Oct 15, 2019

I have few feature layers rendered on the map, and I have an option to change the base map. When I switch the base map, feature layers get cleared.

Same thing works well with graphics. I understand map behaves differently for graphics overlays and layers.

But, how do I achieve this ?

 

I have tried one solution, where in I keep the feature layer in one array and do this when I switch base map,

mMapView.getMap().getOperationalLayers().add(geodatabaseFeatureLayer);

 

but sdk throws a runtime execption "object already owned" for this line. I have map view already declared globally 

 

Thanks

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