演示使用原生的GPS API的访问GPS设备的移动开发例子，具有较好的参考价值-Demonstration of the use of native access to the GPS API for mobile GPS devices example the development of a better reference value

Exif库，如果想编辑图片属性，可用此库，比如：在图片中加入gps位置信息-Exif library, if you want to edit the picture property, use this library, for example: adding gps in the picture location information