res/layout/activity_sflphone_preferences.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- 
Copyright (C) 2004-2013 Savoir-Faire Linux Inc.                     
                                                                    
Author: Alexandre Savard <alexandre.savard@gmail.com>
		Alexandre Lision <alexandre.lision@gmail.com>                     
                                                                    
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 3 of the License, or   
(at your option) any later version.                                 
                                                                    
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GNU General Public License for more details.                        
                                                                    
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along with this program; if not, write to the Free Software         
 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.          
                                                                    
Additional permission under GNU GPL version 3 section 7:            
                                                                    
If you modify this program, or any covered work, by linking or      
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Corresponding Source for a non-source form of such a combination    
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<android.support.v4.view.ViewPager xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/preferences_pager"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     tools:context=".SFLPhonePreferencesActivity" />