Programmatically add border to LinearLayout

Question

How do I add programmatically a border to a LinearLayout? Lets say we create this layout:

LinearLayout TitleLayout = new LinearLayout(getApplicationContext());
TitleLayout.setOrientation(LinearLayout.HORIZONTAL);

Then what do I do?

Answer 1

I believe the answer above isn't correct: The question asks specifically for a programmatic version to do it and the first thing you see is xml. Secondly, doing partly xml is in my case almost never an option, so here's the correct answer:

    //use a GradientDrawable with only one color set, to make it a solid color
    GradientDrawable border = new GradientDrawable();
    border.setColor(0xFFFFFFFF); //white background
    border.setStroke(1, 0xFF000000); //black border with full opacity
    if(Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
      TitleLayout.setBackgroundDrawable(border);
    } else {
      TitleLayout.setBackground(border);
    }

Answer 2

Creat XML called border.xml in drawable folder as below :

 <?xml version="1.0" encoding="utf-8"?>
 <layer-list xmlns:android="http://schemas.android.com/apk/res/android">
  <item> 
    <shape android:shape="rectangle">
      <solid android:color="#FF0000" /> 
    </shape>
  </item>   
    <item android:left="5dp" android:right="5dp"  android:top="5dp" >  
     <shape android:shape="rectangle"> 
      <solid android:color="#000000" />
    </shape>
   </item>    
 </layer-list> 

then add this to linear layout as backgound as this:

android:background="@drawable/border"

Programmatically

TitleLayout.setBackgroundDrawable(getResources().getDrawable(R.drawable.border))

EDIT :

Since Jelly Bean, this method (setBackgroundDrawable has been deprecated), so yet you have to use this one :

TitleLayout.setBackground(getResources().getDrawable(R.drawable.border));

hope this help .