Loading Geoserver WFS Services with ArcGIS Runtime for Android

# 一、我的需求：
- 1、加载特征数据叠加在ArcGis自带的遥感影像地图上；
- 2、支持条件查询，定位到符合条件的地块并设置显示的缩放级别；

# 二、我目前了解到的：
- 1、我实现了加载Geoserver WMS的服务；
- 2、但是Geoserver WFS一直加载失败；
- 3、包括官网给的sample-code也加载不起来；
- 4、我网上搜这块的资料也挺少的，加载不出来也不清楚具体的原因；
`求解决`

# 1. My Requirements:
- 1. Load feature data on top of the ArcGis built-in remote sensing imagery map;
- 2. Support conditional queries, locate the plots that meet the conditions and set the display zoom level;

# 2. What I've Learned So Far:
- 1. I have implemented loading the Geoserver WMS service;
- 2. However, I have been unable to load the Geoserver WFS;
- 3. Even the sample-code provided on the official website does not load;
- 4. I've found limited information online about this, and without being able to load it, I'm unclear on the specific reason;
`Seeking a solution`

Start by reproducing the failure with the official WFS sample-code mentioned in the issue, then compare it with the working GeoServer WMS setup. Record the exact error and service configuration before investigating feature loading, conditional queries, location, and zoom behavior. Done means WFS features load over the ArcGIS imagery and the requested queries and zoom level work.

Written by the indexing model from the issue text.