<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical">

    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
        app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"/>
    </android.support.design.widget.AppBarLayout>

    <ScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:orientation="vertical">

            <Button
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:onClick="launchSimpleActivity"
                android:text="@string/simple_activity_sample"/>

            <Button
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:onClick="launchFullActivity"
                android:text="@string/full_activity_sample"/>

            <Button
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:onClick="launchFullFragmentActivity"
                android:text="@string/full_fragment_sample"/>

        </LinearLayout>
    </ScrollView>
</LinearLayout>