setProjection method Null safety

Future<void> setProjection(
  1. String arg_projection
)

Function to set the projection provided by the Style Extension.

@param projection The projection to be set.

Implementation

Future<void> setProjection(String arg_projection) async {
  final BasicMessageChannel<Object?> channel = BasicMessageChannel<Object?>(
      'dev.flutter.pigeon.mapbox_maps_flutter.StyleManager.setProjection',
      codec,
      binaryMessenger: _binaryMessenger);
  final List<Object?>? replyList =
      await channel.send(<Object?>[arg_projection]) as List<Object?>?;
  if (replyList == null) {
    throw PlatformException(
      code: 'channel-error',
      message: 'Unable to establish connection on channel.',
    );
  } else if (replyList.length > 1) {
    throw PlatformException(
      code: replyList[0]! as String,
      message: replyList[1] as String?,
      details: replyList[2],
    );
  } else {
    return;
  }
}