setPackages method
Attach package codes to every GPS post as the top-level "packages" field.
Optional field — pass an empty list to leave "packages" out of the payload. Can be called before or during tracking; the list is captured per GPS point at the moment it is recorded, so points already cached offline keep the packages they were captured with.
Example:
await VietmapTrackingPlugin.instance.setPackages(['#10001', '#10002']);
Implementation
Future<void> setPackages(List<String> packages) async {
try {
await _method.invokeMethod<void>('setPackages', {'packages': packages});
} on PlatformException {
rethrow;
}
}