mergeMultiplePDF method Null safety

Future<MergeMultiplePDFResponse> mergeMultiplePDF(
  1. {required List<String> paths,
  2. required String outputDirPath}
)

Implementation

static Future<MergeMultiplePDFResponse> mergeMultiplePDF({required List<String> paths, required  String outputDirPath}) async {
  final Map<String, dynamic> params = <String, dynamic>{
    'paths': paths,
    'outputDirPath': outputDirPath
  };



  if(paths.length == 0){

      mergeMultiplePDFResponse.value.status =  Status.error;
      mergeMultiplePDFResponse.value.message = Status.errorMessage;

  }else{
    try {

      bool isPDF = true;

      for(int i=0; i< paths.length ; i++){
        if(!GetUtils.isPDF(paths[i])){
          isPDF = false;
        }
      }

      if(!isPDF){

          mergeMultiplePDFResponse.value.status =  Status.error;
          mergeMultiplePDFResponse.value.message = Status.errorMessagePDF;

      }else{
        final String? response = await _channel.invokeMethod('mergeMultiplePDF', params);

        if(response != "error"){

            mergeMultiplePDFResponse.value.status =  Status.success;
            mergeMultiplePDFResponse.value.message = Status.successMessage;
            mergeMultiplePDFResponse.value.response = response;

        }else{

            mergeMultiplePDFResponse.value.status =  Status.error;
            mergeMultiplePDFResponse.value.message = Status.errorMessage;

        }
      }
    } on Exception catch (exception) {
        mergeMultiplePDFResponse.value.status =  Status.error;
        mergeMultiplePDFResponse.value.message = exception.toString();

    } catch (e) {

        mergeMultiplePDFResponse.value.status =  Status.error;
        mergeMultiplePDFResponse.value.message = e.toString();

    }
  }

  return mergeMultiplePDFResponse.value;
}