The LinearLayout is a ViewGroup that arranges its children in a single column or a single row. The orientation can be set by calling the method [setOrientation()](<https://developer.android.com/reference/android/widget/LinearLayout.html#setOrientation(int)>) or using the xml attribute [android:orientation](<https://developer.android.com/reference/android/widget/LinearLayout.html#attr_android:orientation>).

  1. Vertical orientation : android:orientation="vertical"
<?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">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/app_name" />

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@android:string/cancel" />

</LinearLayout>

Here is a screenshot how this will look like:

http://i.stack.imgur.com/Qshxzl.jpg

  1. Horizontal orientation : android:orientation="horizontal"
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="<http://schemas.android.com/apk/res/android>"
    android:orientation="horizontal"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@string/app_name" />

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="@android:string/cancel" />

</LinearLayout>

The LinearLayout also supports assigning a weight to individual children with the android:layout_weight attribute.