updateTitle method
- String title
 
更新title
Implementation
Future<bool> updateTitle(String title) async {
  if (null == title) {
    return false;
  }
  this.title = title;
  return await BMFMapDispatcherFactory.instance
      .getMarkerDispatcher()
      .updateMarkerMember(this.getMethodChannel(), {
    'id': this.getId(),
    'member': 'title',
    'value': title,
  });
}