activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <LinearLayout
        android:id="@+id/linearlayout01"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:background="#ccc"
        android:layout_weight="1"
        android:orientation="vertical">
    <fragment android:name="com.example.simplefragmentexample.LayOutOne"
            android:id="@+id/frag_1"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent" />
    </LinearLayout>
    <LinearLayout
        android:id="@+id/linearlayout02"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_weight="1"
        android:background="#eee"
        android:orientation="vertical">
    <fragment android:name="com.example.simplefragmentexample.LayOutTwo"
            android:id="@+id/frag_2"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent" />
    </LinearLayout>
</LinearLayout>