title: android post data, html form
body: <p>I want to send HTTP POST request to the URL mentionned on the HTML source code with the same parameter. 
  Form code:</p>
  
  <pre><code>&lt;form enctype="multipart/form-data" method="post" action="/add/"&gt;
     &lt;div style="display:none"&gt;&lt;input type="hidden" name="csrfmiddlewaretoken" value="3e7651db3a8925c8079990f0cb13d8f7"&gt;&lt;/div&gt;   
     &lt;table&gt;
         &lt;tbody&gt;&lt;tr&gt;&lt;th&gt;&lt;label for="id_key"&gt;Key:&lt;/label&gt;&lt;/th&gt;&lt;td&gt;&lt;input id="id_key" type="text" name="key" maxlength="13"&gt;&lt;/td&gt;&lt;/tr&gt;
  &lt;tr&gt;&lt;th&gt;&lt;label for="id_val"&gt;Val:&lt;/label&gt;&lt;/th&gt;&lt;td&gt;&lt;input id="id_val" type="text" name="val" maxlength="50"&gt;&lt;/td&gt;&lt;/tr&gt;
      &lt;/tbody&gt;&lt;/table&gt;
      &lt;input type="submit" value="Submit" id="Save"&gt;
  &lt;/form&gt;
  </code></pre>
  
  <p>What is the equivalent of sending POST request in android? </p>