updateMap method
updates a Map on the bridge
Implementation
void updateMap(String sliceName, MapEntry mapEntry) {
if (_data.containsKey(sliceName)) {
(_data[sliceName]['slice'] as Map)
.addEntries([mapEntry].cast<MapEntry>());
} else {
Map cache = {};
cache[mapEntry.key] = mapEntry.value;
_data[sliceName] = {'slice': cache, 'type': Map};
}
notifyListeners();
}