如何計算移動GPS位置？

Question

我需要計算Gps在移動位置和偏離某個位置的位置。我嘗試過使用駕駛指示，但不贊成任何類似的事情會很好。

Answer 1

我不認爲在移動中經常使用gps的位置是可行的，因爲它會消耗很多的電池電量..雖然爲了檢測偏差，我認爲你需要在lat長的基礎上手動計算。

退房此有關的詳細信息：

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

而這，

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); 
      } 

     } 

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