onError method

@override void onError(DioError err, ErrorInterceptorHandler handler)

The callback will be executed on error.

If you want to continue the error , call handler.next.

If you want to complete the response with some custom data directly, you can resolve a Response object with handler.resolve and other error interceptor(s) will be skipped.

If you want to complete the response with an error message directly, you can reject a DioError object with handler.reject, and other error interceptor(s) will be skipped.

Implementation

@override
onError(DioError err, handler) async {
  if (kDebugMode) {
    print('请求异常: ' + err.toString());
    print('请求异常信息: ${err.response}');
  }
  return handler.next(err);
}