安卓实时位置追踪

Question

大家好，我正在开发两个应用程序，一个是为管理员开发的，另一个是为员工开发的。现在我想使用这个应用程序跟踪员工设备，当员工设备的位置发生变化时，位置会发送到服务器。仅当位置发生变化时才会发送位置。位置更改时如何将设备位置发送到服务器？ 其次，我想在管理应用程序 map 上显示员工的位置，因为它正在更改其位置。(我可以通过 GCM 或任何其他技术将位置坐标从服务器发送到管理应用程序吗？)

嘿，投票失败者，你能解释一下这个问题有什么问题吗？如果您对问题有答案，请尝试理解问题。请帮忙提前致谢..

Answer 1

public LatLng getLocation()
{
 // Get the location manager
 MyLocationListener myLocListener = new MyLocationListener();
 LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
 Criteria criteria = new Criteria();
 String bestProvider = locationManager.getBestProvider(criteria, false);
 Location location = locationManager.getLastKnownLocation(bestProvider);
 locationManager.requestLocationUpdates(bestProvider,timeAfteryougetUpdate, minDistanceAfterYougetupdate, myLocListener);
 Double lat,lon;
 try {
   lat = location.getLatitude ();
   lon = location.getLongitude ();
   return new LatLng(lat, lon);
 }
 catch (NullPointerException e){
     e.printStackTrace();
   return null;
 }
}

**使用它来获取位置**

private class MyLocationListener implements LocationListener
  {
@Override
public void onLocationChanged(Location loc)
  {
  if (loc != null)
  {
     // Do something knowing the location changed by the distance you requested
     methodThatDoesSomethingWithNewLocation(loc);
  }
 }

 @Override
 public void onProviderDisabled(String arg0)
 {
   // Do something here if you would like to know when the provider is disabled by the user
 }

 @Override
 public void onProviderEnabled(String arg0)
 {
    // Do something here if you would like to know when the provider is enabled by the   user
  }

  @Override
 public void onStatusChanged(String arg0, int arg1, Bundle arg2)
 {
  // Do something here if you would like to know when the provider status changes
 }
 }