nextcloud-android/res/layout/main.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- 
  ownCloud Android client application

  Copyright (C) 2012  Bartek Przybylski
  Copyright (C) 2012-2013 ownCloud Inc.

  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="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >
    
    <GridView
        android:id="@+id/homeScreenGrid"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_gravity="center_horizontal"
        android:columnWidth="90dp"
        android:gravity="center"
        android:horizontalSpacing="20dp"
        android:verticalSpacing="20dp"
        android:layout_marginTop="20dp"
        android:numColumns="2"
        android:stretchMode="columnWidth" >
    </GridView>

    

</LinearLayout>