title: How to get native source code of send a mail in andorid?
body: <p>I am new to android.</p>
  
  <p>I want to get the native source code of send email.</p>
  
  <p>For example in our android we have a icon like email.</p>
  
  <p>Then any one click the email icon the mail application will open.</p>
  
  <p>so I want that source code.</p>