How to get the HTML source of a page from a HTML link in Android?

You can use HttpClient to perform an HTTP GET and retrieve the HTML response, something like this:

HttpClient client = new DefaultHttpClient();
HttpGet request = new HttpGet(url);
HttpResponse response = client.execute(request);

String html = "";
InputStream in = response.getEntity().getContent();
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
StringBuilder str = new StringBuilder();
String line = null;
while((line = reader.readLine()) != null)
{
    str.append(line);
}
in.close();
html = str.toString();

I would suggest jsoup.

According to their website:

Fetch the Wikipedia homepage, parse it to a DOM, and select the headlines from the In the news section into a list of Elements (online sample):

Document doc = Jsoup.connect("http://en.wikipedia.org/").get();
Elements newsHeadlines = doc.select("#mp-itn b a");

Getting started:

  1. Download the jsoup jar core library
  2. Read the cookbook introduction