<!-- layout-land párja van, fekvő és álló layout példa -->
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/firstButton"/>
    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/secondButton"/>
    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/thirdButton"/>
    <Button
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/fourthButton"/>

</LinearLayout>