three_buttons_menu.xml

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
    <item
        android:id="@+id/hand"
        android:icon="@drawable/hand"
        android:title="Jobs" />
    <item
        android:id="@+id/stern"
        android:icon="@drawable/stern"
        android:title="Praemien" />
    <item
        android:id="@+id/chat"
        android:icon="@drawable/chat"
        android:title="Chat" />
    <item
        android:id="@+id/einstellungen"
        android:icon="@drawable/einstellungen"
        android:title="Einstellungen" />

    <android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        android:id="@+id/three_buttons_activity"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context=".MainActivity">

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="#fff">

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textAppearance="?android:attr/textAppearanceLarge"
                android:text="Three Buttons Bar"
                android:id="@+id/textView"
                android:layout_centerVertical="true"
                android:layout_centerHorizontal="true"
                android:textColor="@color/colorPrimary"
                android:textSize="35sp" />
        </RelativeLayout>

    </android.support.design.widget.CoordinatorLayout>
</menu>