Mobile version

Rails
1

Hi, I am building 3 layouts of the same site: 1 for the web, 1 for the
iphone, 1 for the mobile (xhtml mp). I know if the request of my site is
from iphone with this string:

request.env[“HTTP_USER_AGENT”] &&
request.env[“HTTP_USER_AGENT”][/(Mobile/.+Safari)/]

How can I know when the request is from mobile or (in fact the same
result) is from internet web browsers?

Matteo.

2

Have you searched the web for the user agent strings of the most
common mobile phones that have web capabilities to see if there is
some common string to can key off of?

3

Okay. After a quick search it appears the detection of mobile devices
is somewhat non-trivial. Solutions extend from building arrays of
“common” user agent strings for various mobile devices through the use
of comprehensive XML files containing information about the
capabilities of mobile devices. Here’s is an example of one I was able
to find:

There are other examples that may do the trick for the more common
mobile devices. But, there appears to be no consistent string that
guarantees whether the device is mobile or not. At least not that I
have found in my quick search.

4

http://wurfl.sourceforge.net/

I think this is the best solution. I think to keep the list from the
file and check the user_agent.
Thank a lot!
M.

5

Robert W. wrote:

Have you searched the web for the user agent strings of the most
common mobile phones that have web capabilities to see if there is
some common string to can key off of?

Yes, I searched for mobile device user agent and I found just single
user agent list like this:

But I hope to find a code for detecting all mobiles request instead to
create a long list to manage. I think this is more useful.

6

If it helps I found also this resource:

http://www.useragents.org/database-useragents.asp

Is in italian but there are common links like browser, robots, sistema
operativo (os).
And there is a rss:
http://www.useragents.org/database-useragents.asp