private void startUpload(int index) {
    if (NavigineApp.Navigation == null) return;

    String userHash = NavigineApp.Settings.getString("user_hash", "");
    if (userHash.length() == 0) return;

    LocationInfo info = mInfoList.get(index);
    String location = new String(info.title);
    Log.d(TAG, String.format(Locale.ENGLISH, "Start upload: %s", location));

    synchronized (mLoaderMap) {
      if (!mLoaderMap.containsKey(location)) {
        LoaderState loader = new LoaderState();
        loader.location = location;
        loader.type = UPLOAD;
        loader.id = LocationLoader.startLocationUploader(location, info.archiveFile, true);
        mLoaderMap.put(location, loader);
      }
    }
    mAdapter.updateList();
  }
 @Scheduled(fixedDelay = SCHEDULED_CHECK)
 public void checkActiveClients() {
   Set<String> users = user_vidNameMap.keySet();
   Iterator<String> it = users.iterator();
   long time = System.currentTimeMillis();
   int count = 0;
   while (it.hasNext()) {
     count++;
     String user = it.next();
     if (user == null) continue;
     if (userAliveMap.containsKey(user)) {
       if (userAliveMap.get(user).longValue() < time) {
         removeUser(user);
         userAliveMap.remove(user);
       }
     } else {
       throw new RuntimeException("user in user-vid map but not in user-alive map");
     }
   }
   // System.out.println("Debug: Scheduled Check count:"+count+" user
   // count:"+user_vidNameMap.size());
   System.gc();
 }