omnipreference/res/layout/action_item.xml

<?xml version="1.0" encoding="utf-8"?>
<!--  Copyright (C) 2016 The OmniROM Project

  This program is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 2 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 -->

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:minHeight="64dp"
    android:paddingStart="6dp"
    android:gravity="center_vertical"
    android:paddingEnd="?android:attr/listPreferredItemPaddingEnd"
    android:orientation="horizontal" >

    <TextView
        android:id="@+id/action_title"
        android:layout_width="0dip"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:layout_gravity="center_vertical"
        android:singleLine="true"
        android:ellipsize="end"
        android:focusable="false"
        android:textAppearance="?android:attr/textAppearanceListItem"
        android:textAlignment="viewStart" />

    <CheckBox android:id="@android:id/checkbox"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="8dip"
        android:layout_gravity="center_vertical"
        android:clickable="false"
        android:focusable="false" />

</LinearLayout>