这是你的问题:

int latitude = (int) (location.getLatitude());
int longitude = (int) (location.getLongitude());

纬度和经度是 double 值，因为它们以度数表示位置.

Latitude and Longitude are double-values, because they represent the location in degrees.

通过将它们转换为 int，您将丢弃逗号后面的所有内容，这会产生很大的不同.请参阅十进制度 - Wiki"

By casting them to int, you're discarding everything behind the comma, which makes a big difference. See "Decimal Degrees - Wiki"