Detecting mobile phones browser

[Ice13ill]

I wont to know if by checking the "user.agent" property in the gwt.xml
file I can detect if the client is using a browser on a mobile phone
(like HTC wiht Android, or IPhone etc)

And also, are there "nasty" restrictions on the JS (thus GWT classes)
on those browsers ?(at least for those very widely used)

[Shawn Brown]

> I wont to know if by checking the "user.agent" property in the gwt.xml

I don't know what that returns but have seen this in my servlets with
Android 2.1

"GET /myCache.manifest HTTP/1.1" 200 1120 - "Mozilla/5.0 (Linux; U;
Android 2.1-update1; en-us; HTC Magic Build/EPE54B) AppleWebKit/530.17
(KHTML, like Gecko) Version/4.0 Mobile Safari/530.17,gzip(gfe)"

...so if user.agent isn't telling you, I think you can figure it out
server side. User agent would return "safari" for this phone wouldn't
it?

> And also, are there "nasty" restrictions on the JS (thus GWT classes)
> on those browsers ?(at least for those very widely used)

I haven't seen any on the browser used for Android 2.1

Shawn

[cokol]

you can either use js browser detection script and work with it over
JSNI in GWT ( like http://javascript.about.com/library/blbrsdet.htm )
or a serverside solution ( like http://wurfl.sourceforge.net/ ) which
helps you to handle clients capabilities

gwt claims to work on every browser :) hence there is no explicit
support on mobile devices ( I suppose )

[Andrei Cosmin Fifiiţă]

Thx for the answers but i found a way of defining my own property based on a javascript (in .gwt.xml file) which tests the complete user agent string for some keywords.
http://www.javaneverdie.com/gwt/want-to-show-mobile-or-phone-site-version-check-user-agent/

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[Thomas Broyer]

See http://code.google.com/p/gwt-mobile-webkit/ (and there are
probably other projects out there)

If you can, you should use deferred binding (with a property-provider)
instead of checking Window.Navigator in your code (this would mean you
download both the mobile and "desktop" versions, but just don't run
the "desktop" parts)

[Thomas Broyer]

On 15 août, 16:36, Thomas Broyer <t.bro...@gmail.com> wrote:
> On 14 août, 14:32, Ice13ill <andrei.fifi...@gmail.com> wrote:
>
> > I wont to know if by checking the "user.agent" property in the gwt.xml
> > file I can detect if the client is using a browser on a mobile phone
> > (like HTC wiht Android, or IPhone etc)
>
> > And also, are there "nasty" restrictions on the JS (thus GWT classes)
> > on those browsers ?(at least for those very widely used)
>

> Seehttp://code.google.com/p/gwt-mobile-webkit/(and there are

> probably other projects out there)

See also this example:
http://code.google.com/p/google-web-toolkit/wiki/ConditionalProperties#Example_2:_Avoiding_permutation_explosion

[Andrei Cosmin Fifiiţă]

Yep, that is exactly what i did :) (property-provider and replace-with tags)