I am using Chrome to build a web-based user interface for an application on the Raspberry Pi touch screen. That screen is 800x480 pixels, so I have clear dimensions of how large everything should be.
In Chrome, you can easily scale your page to have those dimensions, using the "Device toolbar" in the development tools (F12).
However, it looks like something is going wrong there, see the image below:
The screen is 800x480, but the selected nav tag is 980 pixels wide and still fits inside the screen! (And indeed when running the UI on the Raspberry Pi screen, it was wrong)
Am I using the tool incorrectly, or is something else going on?
I had the same problem which was caused by the fact that my website was not configured correctly for mobile.
To fix it, I had to add to the head element the following meta tag:
<meta name="viewport" content="width=device-width, initial-scale=1" />
Related
I have a CSS layout for a web-based game that was designed to fit the iPad screen only (it's running inside an iPad app). Now I want to port that same game to the iPhone. If I simply run the app using the iPhone 5 simulator, it will just show me a 320x568 section of the screen.
I was wondering if there was a way to (automatically?) shrink down every component on the page to be smaller and fit the iPhone 5's screen. There's lots of images that were designed with the iPad's resolution in mind, so they're bigger than they should be on the iPhone. Can these be resized by the CSS depending on the screen size or would I need to resize them all manually?
In the index.html file I already have included:
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
It won't size automatically to the iPhone's screen however. There's also a lot of hardcoded pixel values. Can I simply change those to a percentage that's relative to the screen?
For the record, I didn't write this code, and am not THAT good at CSS. Thank you for your help.
You can checkout this website for help... You can study how to fit a layout as per device size.
http://alistapart.com/article/responsive-web-design
Don't blame if the link expires;-)
I'm currently developing a "mobile version" of a website that is primarily targeting more current iPhones (4+), it's my first time doing this. I'm testing on an iPhone 4S, my understanding is that the screen resolution of that device is 640x920 (when held in "portrait" orientation). I have everything on the site within a 600px wide container, although when I view it on the phone it seems to display by default in a "zoomed out" state, being that I can still see something like 1000-1200 pixels of content on the screen.
I assume that the iPhone displays sites in this way as many are not built to adapt to it's smaller resolution? Is there something I'm missing here? Is there something I set to tell the device to display the site at it's actual resolution?
You need to add a viewport meta tag in your html head.
<meta name="viewport" content="width=device-width">
That tells the browser that the viewport (virtual width) should be set to the device width (physical width).
i'm using this template for wordpress:
http://demos.itsmattadams.com/jetwire/
When I try to load on iphone/ipad, the page don't fit to all wide because only show a portion. I don't want horizontal scroll either.
If I open the theme from a ThemeForest link, works good (maybe for the iframe?):
http://themeforest.net/item/jetwire-powerful-wordpress-blog-theme/full_screen_preview/2919709
I tried to change the main container width to 960px, but don't work.
Could somebody help me?
Remove this line
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1" />
The site should then automatically fit inside the viewport. This line is basically telling the device to take the pixelwidth of the device (width=device-width) and match it to your site, by 'zooming in'.
Say your site is 960px wide, and the device is 320px wide; it will then only show the leftmost part (320px wide) of the site, leaving 640px 'flowing over' to the right.
Not specifying a viewport width will force the device to show the full site.
I have a painful issue CSS issue which appears to be caused by the Disqus CSS.
The Disqus CSS seems to cause my page's main content text to randomly change sizes in parts. Clicking refresh will randomly make some text bigger, some smaller and some bold. It only seems to occur in Safari on the iPhone (real and simulator) and is fine in Firefox, IE, Android and iPad Safari. Turning off Disqus comments fixes the issue. I have tried changing Disqus themes and turning mobile view on and off.
Below you can see the same page being rendered differently every time I click refresh (live site-it should look like this)
Any help would be greatly appreciated.
You could try applying the -webkit-text-size-adjust: none; and targeting the Disqus code? If I remember Disqus doesn't use iframes, so it should work if the hierarchy you use is stronger than theirs.
More info here:
http://css-infos.net/property/-webkit-text-size-adjust
Hope that helps :)
Edit: I just had a thought while writing that comment below. You may be able to sort this by setting the viewport width, either explicitly or to device width.
For example, this will make the viewport on an iphone be 320px wide in portrait and 460px wide in landscape (I think that's right?).
<meta name="viewport" content="width=device-width, initial-scale=1">
From the screenshots I think that is actually too small though, so something like this may be better.
<meta name="viewport" content="width=800, initial-scale=1">
This is actually why the text size changes in the first place. The iPhone scales that 800px to fit both portrait and landscape. In portrait though that could make the font far too small so it is increased.
See here for more info: https://developer.apple.com/library/ios/#DOCUMENTATION/AppleApplications/Reference/SafariWebContent/UsingtheViewport/UsingtheViewport.html
I asked a question and received an answer regarding sizing images for mobile browsers.
The answer provided works for inline images. However, I need to use background images as part of a header, as well. They're set via css classes. On android, they scale correctly in both portrait and landscape, but on iPhone they automatically zoom in when turning from portrait to landscape. This is a problem. I have a viewport tag set like so:
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
Apparently when the iPhone (at least the newest versions) are turned to landscape mode, it rescales and zooms in really huge, rather than just repeating the background more times to account for the wider screen.
Here's what my code looks like:
<tr><td colspan="2" class="logoHeader"><img src="/images/mobile/logoCopy.png" /></td></tr>
where class logoHeader looks like this:
td.logoHeader {
background: url(/images/mobile/transparentLeavesRight.png) top right no-repeat,
url(/images/mobile/transparentLeavesGradient.png) top left repeat-x;
text-align:center;
}
Any ideas? I know that I can add the user-scalable property of the viewport meta, but we don't want to prevent users from manually zooming if necessary. We just want to prevent it from automatically zooming when the phone is turned into landscape mode.
FYI: I did search and found this and this, which are pretty much asking the same question. But they're both a number of months old, and neither has an actual answer to the problem, so I'm hoping that someone has come up with something in the interim.
to avoid rescaling when orientation changes try
<meta name='viewport' content='width=1024' />
and adjust width for your needs. If this won't work on android correctly, you can always send different viewport tag by PHP+user agent detection, or set it on device by javascript.
Change the viewport to:
<meta name="viewport" content="width=device-width, initial-scale="selfrender"/>