The "http:/" in your code of
"Linkify.addLinks(license, pattern, "http:/https://stackoverflow.com/questions/ask")"
twice doesn't help.
Just use:
Pattern pattern = Pattern.compile("www.stackoverflow.com/questions/ask");
Linkify.addLinks(license, pattern, "http://");
Where the text that you mention in pattern
should be a part of the text you set in your TextView
Refer: linkify blog link