本文主要记录在运行graphhopper安卓版路径规划导航源码的步骤和遇到的问题。
成功运行了程序，但是路劲规划一直不成功，问题一开始是服务地址，后来又是key的问题，在这个项目中涉及到了graphhopper、mapbox、mapilion的key，mapbox带导航的key我一直无法获取。目前最大的问题：我无法注册mapbox，求一个带导航功能的测试key
项目遇到了瓶颈-_-有在搞或者搞过graphhopper安卓版的童鞋指导一下，**谢谢！**😀
1、源码下载
graphhopper-Android源码：graphhopper-navigation-example
2、申请Key
- graphHopper的key，进入官网并登录：GraphHopper官网地址
- mapilion的key：没有登录上去，自己扒一下Mapilion地址
- mapbox-key:mapbox的key我一直无法登录；找了个方法MapBox账号注册(重大更新) ，还没测试。🤔
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代码中显式的是mpabox_access_token，而md说明文档中又说是graphhopper的key，给我整蒙了，目前还没解决，最主要的问题还是无法获取Mapbox带导航功能的key。
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3、运行程序调试代码
更改了developer-config.xml中的请求地址base_url，添加了相关的key，如果不设置，会遇到如下问题：
问题：请求地址无效，404错误
- 问题日志
onFailure: navigation.getRoute() java.net.SocketTimeoutException:
failed to connect to graphhopper.com/108.160.172.232 (port 443) from /192.168.100.100 (port 42782) after 10000ms
在graphhopper官网找到api相关的内容，graphhopper没有严格区分js-api、Android-api，更改base_url测试结果如下
- 原请求：
https://graphhopper.com/api/1/navigate?point=51.131,12.414&point=48.224,3.867&profile=car&locale=de&calc_points=false&key=88c4066a-c52c-4366-88c9-675bc5db4597
- 原响应
{"message": "HTTP 404 Not Found"
}
- 新请求
https://graphhopper.com/api/1/route?point=51.131,12.414&point=48.224,3.867&profile=car&locale=de&calc_points=false&key=88c4066a-c52c-4366-88c9-675bc5db4597
- 新响应
{"hints": {"visited_nodes.sum": 4783,"visited_nodes.average": 4783},"info": {"copyrights": ["GraphHopper","OpenStreetMap contributors"],"took": 27,"road_data_timestamp": "2024-07-20T02:00:00Z"},"paths": [{"distance": 883834.768,"weight": 42799.118711,"time": 29541602,"transfers": 0,"points_encoded": true,"points_encoded_multiplier": 100000,"snapped_waypoints": "ivawHebxjAz_wPlyds@"}]
}
配置文件
重点在于：base_url:https://graphhopper.com/api/1/route/;源码下载下来的base_url:https://graphhopper.com/api/1/navigate/无法访问，可以自行测试一下
<?xml version="1.0" encoding="utf-8"?>
<resources><string name="base_url" translatable="false">https://graphhopper.com/api/1/route/</string> <!-- Your GraphHopper API key -->
<!-- <string name="mapbox_access_token" translatable="false">pk.88c4066a-c52c-4366-88c9-675bc5db4597</string>-->
<!-- <string name="mapbox_access_token" translatable="false">pk.eyJ1IjoiYW5kcm9pZHNoYWtpbCIsImEiOiJja2k0bDMzcjcwMGZ5MnBuMml5ZGtyeDd6In0.cxt1NubVuc6yVE5CdS6iUQ</string>--><string name="mapbox_access_token" translatable="false">pk.eyJ1Ijoic2hhZG93aGlqYWNrZXJzIiwiYSI6ImNrOXMxcW8yZjA1amgzZXBjemdhdXF6cTMifQ.A5ibSD0Tf9rqo3mpBVo19Q</string><!-- The "day" style used for navigation, here mapilion is used but you can use maptiler too --><string name="map_style_light" translatable="false">https://tiles.mapilion.com/assets/osm-bright/style.json?key=3d92bc05-5f36-421b-8457-18bbf96540b7</string><!-- The "night" style used for navigation --><string name="map_style_dark" translatable="false">https://tiles.mapilion.com/assets/dark-matter/style.json?key=3d92bc05-5f36-421b-8457-18bbf96540b7</string>
</resources>
