By default the LinearLayout does not have a border. In case that you need to apply the border to the LinearLayout, this Android tip is useful to you. I will help you walk through the process of adding border to the layout.
First of all, you have to define an xml file in the res/drawable directory that will be used as the background of the layout. In my case, I create a file called border.xml. In the file, you define a shape (e.g. rectangle, oval). Then you specify attributes of the shape. The width and color of the border are specified in the tag. If you want to apply corners and paddings to the shape, you use and tags.

<?xml version="1.0" encoding="utf-8"?>

<shape xmlns:android= "http://schemas.android.com/apk/res/android"

   android:shape="rectangle">

   <!--stroke width and color-->

   <stroke

      android:width="8dp"

      android:color="#3F51B5"/>

   <!-- corner radius-->

   <corners

      android:radius="10dp"/>

   <!--paddings-->

   <padding

      android:left="15dp"

      android:top="10dp"

      android:right="15dp"

      android:bottom="10dp"/>

</shape>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

   xmlns:tools="http://schemas.android.com/tools"

   android:id="@+id/llayout"

   android:layout_width="match_parent"

   android:layout_height="match_parent"

   android:orientation="vertical"

   tools:context=".MainActivity"   

   android:background="@drawable/border"

  >



   <Button

      android:layout_width="wrap_content"

      android:layout_height="wrap_content"

      android:text="Button1"

      />

   <Button

      android:layout_width="wrap_content"

      android:layout_height="wrap_content"

      android:text="Button2"

      />



</LinearLayout>

LinearLayout linearLayout=(LinearLayout)findViewById(R.id.llayout);

 linearLayout.setBackgroundResource(R.drawable.border);

Posted by: Dara | post date: 05-01-2015 | Subject: Android Apps Development