getDio method

Implementation

Dio getDio(){
  if(_dio == null){
    _dio = Dio();

    _dio!.options.baseUrl = _baseUrl;
    _dio!.options.connectTimeout = Duration(seconds: 5);
    _dio!.interceptors.add(InterceptorsWrapper(
      onRequest: onRequestInterceptor,
      onResponse: onResponseInterceptor,
      onError: onErrorInterceptor,
    ));

    var isOpenProxy = SpUtil.read(SpUtil.IS_OPEN_PROXY,false);
    var host = SpUtil.read(SpUtil.PROXY_HOST,'');
    var port = SpUtil.read(SpUtil.PROXY_PORT,'');
    if(isOpenProxy && '$host'.isNotEmpty && '$port'.isNotEmpty){
      _dio!.httpClientAdapter = IOHttpClientAdapter(createHttpClient: () {
        final client = HttpClient();
        client.badCertificateCallback = (X509Certificate cert, String host, int port) => true;
        client.findProxy = (uri) => 'PROXY $host:$port';
        return client;
      });
    }
  }
  return _dio!;
}