Merge "Refactor getAllUsers"

import android.graphics.Rect;

import android.os.AsyncTask;

import android.os.UserHandle;

import android.os.UserManager;

import android.util.AttributeSet;

import android.view.LayoutInflater;

import android.view.View;

import java.util.ArrayList;

import java.util.List;

import java.util.stream.Collectors;

import java.util.stream.Stream;

/**

 * Displays a GridLayout with icons for the users in the system to allow switching between users.

    private UserSelectionListener mUserSelectionListener;

    private UserAdapter mAdapter;

    private CarUserManagerHelper mCarUserManagerHelper;

    private UserManager mUserManager;

    private Context mContext;

    private final BroadcastReceiver mUserUpdateReceiver = new BroadcastReceiver() {

        super(context, attrs);

        mContext = context;

        mCarUserManagerHelper = new CarUserManagerHelper(mContext);

        mUserManager = UserManager.get(mContext);

        addItemDecoration(new ItemSpacingDecoration(context.getResources().getDimensionPixelSize(

                R.dimen.car_user_switcher_vertical_spacing_between_users)));

     * @return the adapter

     */

    public void buildAdapter() {

        List<UserRecord> userRecords = createUserRecords(mCarUserManagerHelper

                .getAllUsers());

        List<UserRecord> userRecords = createUserRecords(getAllUsers());

        mAdapter = new UserAdapter(mContext, userRecords);

        super.setAdapter(mAdapter);

    }

    private List<UserInfo> getAllUsers() {

        Stream<UserInfo> userListStream =

                mUserManager.getUsers(/* excludeDying= */ true).stream();

        if (UserManager.isHeadlessSystemUserMode()) {

            userListStream =

                    userListStream.filter(userInfo -> userInfo.id != UserHandle.USER_SYSTEM);

        }

        userListStream = userListStream.filter(userInfo -> userInfo.supportsSwitchToByUser());

        return userListStream.collect(Collectors.toList());

    }

    private List<UserRecord> createUserRecords(List<UserInfo> userInfoList) {

        List<UserRecord> userRecords = new ArrayList<>();

    private void onUsersUpdate() {

        mAdapter.clearUsers();

        mAdapter.updateUsers(createUserRecords(mCarUserManagerHelper.getAllUsers()));

        mAdapter.updateUsers(createUserRecords(getAllUsers()));

        mAdapter.notifyDataSetChanged();

    }