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From: Arno Welzel <usenet@arnowelzel.de>
Newsgroups: comp.infosystems.www.authoring.html,comp.lang.javascript
Subject: Re: Sizing on android phone
Date: Fri, 13 Jan 2012 14:52:53 +0100
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Andrew Poulos, 2012-01-13 01:30:

> On 13/01/2012 1:11 AM, Arno Welzel wrote:
>> Andrew Poulos, 2012-01-09 04:03:
>>
>>> I've a basic page which, onload, returns the viewport size.
>>>
>>> When I run the page on a Samsung GS it returns 450 x 320.
>>>
>>> When I create a small elearning course designed to run at 450 x 320 the
>>> course ends up occupying just the top quarter of the screen. (Because of
>>> the required user interaction I've had to disallow the default actions
>>> for swipes but not gestures.) If the course queries the viewport size it
>>> returns 1125 x 800.
>>>
>>> To get it to "fill" the screen I added
>>>     <meta name="viewport" content="width=device-width">
>>> to the head.
>>>
>>> My questions are
>>> - I don't understand why the viewport size changes between my basic page
>>> and the course on the same device.
>>
>> Please read:
> 
> Thanks for all the responses. I'll try to get some test pages together soon.
> 
> Some people  have misunderstood my question. I have a basic page which 
> says the viewport is one size. When I have a more complex page (without 
> a meta viewport set) it reports a different viewport size.
> 
> It could be because the later has some sized elements in it.

The mobile browsers extend the viewport - but only if neccessary to
render a larger overview of the web site which can be zoomed. This
behaviour can be controlled by the viewport meta header.


-- 
Arno Welzel
http://arnowelzel.de
http://de-rec-fahrrad.de