Question

我需要在移动时计算Gps位置并偏离某个位置。我尝试使用行车路线，但不推荐任何相似的东西都会很好。

Answer 1

我不认为在移动中经常使用gps获取位置是可行的，因为它会消耗很多电池电量..，虽然为了检测偏差，我认为你需要在lat long的基础上手动计算它。

有关地点的更多信息，请查看此内容：

http://developer.android.com/guide/topics/location/obtaining-user-location.html

这个，

http://android-developers.blogspot.com/2011/06/deep-dive-into-location.html

Answer 2

LocationListener locationListener = new LocationListener() {
                public void onLocationChanged(Location location) {
                location.getLatitude();
                            location.getLongitude()
                    // what you want to do
                }

                public void onStatusChanged(String provider, int status,
                        Bundle extras) {
                    Toast.makeText(LocationInfoActivity.this,
                            String.valueOf("onStatusChanged " + provider),
                            Toast.LENGTH_SHORT).show();
                }

                public void onProviderEnabled(String provider) {
                    Toast.makeText(LocationInfoActivity.this,
                            String.valueOf("onProviderEnabled " + provider),
                            Toast.LENGTH_SHORT).show();
                }

                public void onProviderDisabled(String provider) {
                    Toast.makeText(LocationInfoActivity.this,
                            String.valueOf("onProviderDisabled " + provider),
                            Toast.LENGTH_SHORT).show();
                }
            };


            try {
                locationManager.requestLocationUpdates(
                        LocationManager.GPS_PROVIDER, 10000, 1, locationListener);

    // the 1 denotes meter (deviation)
            } catch (Exception e) {
                Toast.makeText(this, e.getMessage(), Toast.LENGTH_SHORT).show();
                locationManager.requestLocationUpdates(
                        LocationManager.NETWORK_PROVIDER, 10000, 1,
                        locationListener);
                locationManager.requestLocationUpdates(
                        LocationManager.PASSIVE_PROVIDER, 10000, 1,
                        locationListener);
            }

        }

参考： http://developer.android.com/guide/topics/location/obtaining-user-location.html

如何计算移动中的GPS位置？

2 个答案: