resume method

void resume()

Implementation

void resume() {
  if (_downloadingStream != null) {
    _downloadingStream!.resume();
    if (_finalTask != null) {
      _finalTask!.state = TaskState.running;
      _streamController.add(_finalTask!);
    } else {
      _streamController
          .add(ProcessTask(processed: 0, total: 0, state: TaskState.running));
    }
  }
}