android中两个地理点之间的距离和方位

Question

我正在尝试计算两个地理点之间的距离和方位。这是我在网上找到的一个代码，但它返回的值不同。

double currentLat = 51.43376;
    double currentLng = -2.86221;
    double destLat = 51.43503; 
    double destLng = -2.86869;
    final float[] results= new float[3];
    Location.distanceBetween(currentLat, currentLng, destLat, destLng, results);
    System.out.println("GPS" + "results[0]: " + results[0]);
    System.out.println("GPS" + "results[1]: " + results[1]);
    System.out.println("GPS" + "results[2]: " + results[2]);

    Location here = new Location("Current");
    here.setLatitude(currentLat);
    here.setLatitude(currentLng);
    Location dest = new Location("Destination2");
    dest.setLatitude(destLat);
    dest.setLongitude(destLng);

    System.out.println("GPS" + "Bearing to dest: " + here.bearingTo(dest));
    System.out.println("GPS" + "Distance to dest: " + here.distanceTo(dest));

logcat：

04-13 17:46:13.056: I/System.out(1349): GPSresults[0]: 472.2533
04-13 17:46:13.056: I/System.out(1349): GPSresults[1]: -72.5882
04-13 17:46:13.066: I/System.out(1349): GPSresults[2]: -72.59327
04-13 17:46:13.066: I/System.out(1349): GPSBearing to dest: -2.2131138
04-13 17:46:13.066: I/System.out(1349): GPSDistance to dest: 6023135.0

所以有谁能帮我用这些方法，告诉我哪种方法是正确的吗。感谢

Answer 1

在您的代码中：

Location here = new Location("Current");
here.setLatitude(currentLat);
here.setLatitude(currentLng);

你设置了两次纬度。修正后，它给出了绝对正确的结果。