Android linkify URLs links non URLs

I want to make web links inside a textview clickable. I used this code

tv.setLinksClickable(true);
tv.setAutoLinkMask(Linkify.WEB_URLS);
Linkify.addLinks(tv, Linkify.WEB_URLS);

which does linkify the web site URLs but also seems to randomly link other text like z.xyz dzo.yzw and others.

How can I tell the linkify to only link URLs? To try and detect links starting with http:// or https:// beginnings I tried this pattern compiling

tv.setLinksClickable(true);
Pattern httpPattern = Pattern.compile("^(http|https)://");
Linkify.addLinks(tv, httpPattern,"");

but that did not work (no links were highlighted). Is that RegEx correct? What should the 3rd parameter to addLinks be?

Thanks for any tips to get this working.

---

After much searching and trial and error, this is the solution. Do not use the default Linkiny.WEB_URLS. Use a custom regex pattern that looks for links. I used the following (et is an EditText).

et.setLinksClickable(true);
Pattern httpPattern = Pattern.compile("[a-z]+://[^ n]*");
Linkify.addLinks(et, httpPattern,"");

That will only linkify URLs and not other strings with 2 words separated by a full stop as Linkify.WEB_URLS can do.

If that regex is not good enough for your needs see the following link for heaps of tested alternatives that handle more complex cases https://mathiasbynens.be/demo/url-regex

Hope that helps someone else with the same issue.

---

Here'a s pattern that corresponds to RFC 3986 (URL standard):

public static final Pattern URL_PATTERN = Pattern.compile(
        "(?:^|[W])((ht|f)tp(s?)://|www.)"
                + "(([w-]+.){1,}?([w-.~]+/?)*"
                + "[p{Alnum}.,%_=?&#-+()[]*$~@!:/{};']*)",
        Pattern.CASE_INSENSITIVE | Pattern.MULTILINE | Pattern.DOTALL);

from: https://stackoverflow.com/a/5713866/2980992.

---

You may go on this way:

String regex = "^(https?|ftp|file)://[-a-zA-Z0-9+&@#/%?=~_|!:,.;]*[-a-zA-Z0-9+&@#/%=~_|]";
if (tv.getText().toString().matches(regex)) {
    tv.setLinksClickable(true);
    Linkify.addLinks(tv, Linkify.WEB_URLS);
}

More about URL regex: Regular expression to match URLs in Java

链接地址: http://www.djcxy.com/p/74642.html

上一篇: Android Linkify不会让电话号码可点击

下一篇: Android链接网址链接非网址