/**
* 判斷服務是否正在運行
* 
* @param context
* @param className 判斷的服務名字：包名+類名
* @return true在運行 false 不在運行
*/
public static boolean isServiceRunning(Context context, String className) {
  boolean isRunning = false;
  ActivityManager activityManager = (ActivityManager) context
    .getSystemService(Context.ACTIVITY_SERVICE);
  //獲取所有的服務
  List<ActivityManager.RunningServiceInfo> services= activityManager.getRunningServices(Integer.MAX_VALUE);
  if(services!=null&&services.size()>0){
   for(ActivityManager.RunningServiceInfo service : services){
    if(className.equals(service.service.getClassName())){
     isRunning=true;
     break;
    }
   }
  }
  return isRunning;
}

public static Location getLocation(LocationManager locationManager, LocationListener locationListener) {
  Location location=null;
  location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
  locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListener);
  if(location==null){
   location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
   locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, locationListener);
  }
  return location;
}