android - 海拔高度始终为0。我无法获取海拔高度

Question

我得到的高度总是 0。我想在 Android 中使用 GPS 获取海拔高度。

我的代码是:

public void onLocationChanged(Location location) {
    double lat = (double) (location.getLatitude());
    double lng = (double) (location.getLongitude());
    double alt = (double) (location.getAltitude());
    latitudine = (int) (lat * 1e6);
    longitudine = (int) (lng * 1e6);
    altitudine = (int) (alt * 1e6);
}

Answer 1

您是否检查过这是否是特定于设备的？您在模拟器中工作吗？

我首先会检查您的设备是否支持通过以下方式确定高度:

LocationManager locationManager; LocationProvider locationProvider;

/* Get LocationManager and LocationProvider for GPS */
locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
locationProvider = locationManager.getProvider(LocationManager.GPS_PROVIDER);

/* Check if GPS LocationProvider supports altitude */
locationProvider.supportsAltitude();

如果您想知道某个位置是否设置了有效的海拔高度，请使用以下命令:

Location location;

/* Get current location from GPS */
location = Location(LocationManager.GPS_PROVIDER);

/* Check if the requested Location has its altitude set */
location.hasAltitude();