public void getFollowers() {
    final ArrayList<User> fetched_followers = Session.getFollowers(Session.viewed_user.id);
    List<Map<String, String>> followers = new ArrayList<Map<String, String>>();
    for (int i = 0; i < fetched_followers.size(); i++) {
      try {
        HashMap<String, String> follower = new HashMap<String, String>();
        follower.put(
            "follower",
            fetched_followers.get(i).first_name + " " + fetched_followers.get(i).last_name);
        followers.add(follower);
      } catch (Exception e) {

      }
    }
    ListView followers_list = (ListView) findViewById(R.id.followers_lv);
    SimpleAdapter followers_adapter =
        new SimpleAdapter(
            this,
            followers,
            android.R.layout.simple_list_item_1,
            new String[] {"follower"},
            new int[] {android.R.id.text1});
    followers_list.setAdapter(followers_adapter);
    followers_list.setOnItemClickListener(
        new AdapterView.OnItemClickListener() {
          public void onItemClick(AdapterView<?> parentAdapter, View view, int position, long id) {
            Session.viewed_user = fetched_followers.get(position);
            Intent i = new Intent(Followers.this, Profile.class);
            startActivity(i);
          }
        });
  }
  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();

    if (id == R.id.to_profile) {
      Session.viewed_user = Session.current_user;
      Intent i = new Intent(this, Profile.class);
      startActivity(i);
      return true;
    }

    if (id == R.id.edit_profile) {
      Intent i = new Intent(this, Edit_profile.class);
      startActivity(i);
      return true;
    }

    if (id == R.id.to_feed) {
      Intent i = new Intent(this, Feed.class);
      startActivity(i);
      return true;
    }

    if (id == R.id.new_post) {
      Intent i = new Intent(this, New_post.class);
      startActivity(i);
      return true;
    }

    if (id == R.id.search) {
      Intent i = new Intent(this, Search.class);
      startActivity(i);
      return true;
    }

    if (id == R.id.log_out) {
      Session.Logout();
      Intent i = new Intent(this, Welcome.class);
      startActivity(i);
      return true;
    }

    //noinspection SimplifiableIfStatement
    if (id == R.id.action_settings) {
      return true;
    }

    return super.onOptionsItemSelected(item);
  }