I'm having trouble wrapping my head around sizing images and ui elements for my iphone app using phonegap (basically mobile website gone native app). Here are my PSD settings:
width: 640px
height: 960px
resolution: 326px
I'm creating two images, one at half resolution and the other at full. Then I'm using a plugin to recognize the retina display and replace all images with "*-2x". The trouble is that the images appear larger on my retina iphone and are blurry. I'm wondering if my viewport is messing things up as it zooms in on the screen to fit the app:
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
I have never used PhoneGap, but to make HTML show images in Retina res what I do is link to a retina res image, say the image is 640x960 pixels, but in the HTML set the size properties to 320x480.
The reason for this, is iOS uses resolution independent "points" instead of "pixels" for layout.
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 having some issues with a page that doesn't have a lot of content and therefore has a small height. The iPhone is scaling the page, and due to this, I can't see the full menu bar (960px wide). I put a minimum height using a media query for both portrait mode and mobile devices with a minimum resolution. I really dislike doing this as I don't know how this will work on other devices, and it only works if the user doesn't rotate the screen (after rotation, the original issue re-occurs).
Is there some way to force the iphone to show a minimum width of 960px even if the height of the content doesn't fill the screen?
You can control the viewport width, and maximum scale (depth visitor is allowed to zoom in) for Apple mobile devices with this META tag:
<meta name="viewport" content="width=960px, maximum-scale=1.0" />
Works with Android and other mobile browsing devices, too.
By default iOS browsers supply a set of default screen dimensions, regardless of actual screen res or orientation.
In order to get them to supply #media tags with the actual screen dimensions there is a Meta tag they will obey:
<meta name="viewport" content="width=device-width, initial-scale=1">
If you add this to your page(s) then your #media commands should work with the actual screen resolution of each device. You then have full control with your #media queries
You can then use things like width: 100% to use the actual screen width.
https://developer.mozilla.org/en-US/docs/Mozilla/Mobile/Viewport_meta_tag
I designed an app on a resolution of 640x960px which I am now converting into a working webapp for an iPhone 4S. As you may know, the iPhone 4s has got a resolution of 640x960px.
Why is it that when I use width=device-width in the meta viewport, which shouldn't downscale or upscale the design, the iphone uses a width of 320px instead of 640 pixels?
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
However when I use width=640 it forces the browser to use 640px as the width but that doesn't automatically change the width for other devices such as an iPad. This just doesn't make sense to me.
content="width=device-width"
will not scale up anything.It only changes the viewport's width. It seems the iPad is dumb in such cases as it thinks of width in device-width as 768px in landscape mode too.
In landscape mode setting a specific pixel value for iPad will scale it up 1.333.
Use this and couple it up with responsive layout techniques
<meta name="viewport" content="width=device-width, initial-scale=1">
Also, what you are doing is correct. Just add specific code for layout. Made my life much easier.
I'm building an iphone version of a website and was curious of the best practices for choosing image sizes. I'm making a simple vertical column of images text. I originally thought that 300px would be the best size (320px portrait mode minus 10px margin each side). However when user rotates to landscape the images will now seem blurry & upscaled. The alternative is to make the images larger, but then in portrait mode they will all need downscaling- does this make the page load slower? I assumed most people view in portrait.
If I go with landscape/480px as the base size what viewport meta should I use to get it to size down for portrait? My current viewport meta tag is :
<meta name="viewport" content="user-scalable=no, width=device-width" />
Many thanks in advance
Just wondering if anyone else has experienced the iPad/iPhone scaling their background images down to fit the view port.
In my case, I'm swapping out background images via javascript, and the new background images are super wide to fit large displays. However, the iPad is scaling down the background images that are added to the DOM via javascript. I solved this by using "-webkit-background-size" set to the size that the image should be, but this causes the background image to be stretched and pixelated.
This worked for on iPad:
-webkit-background-size: length_x length_y;
The iphoneOS scales every picture with above 2 million pixels (width*height) 50% down.
I managed it with spliting the background into two pictures.
All you have to do is add this meta tag within the of your pages to prevent the background image from being scaled.
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
First of all, if you export your image as a 32 bit png (I use Fireworks to do so), and use that png in your background instead of a jpg file, IOS won't scale the image. Works like a charm, and the size is about the same as a jpg with 100% quality (slightly smaller actually)
Also, aditionally for a better experience in ipad / iphone, you should:
a) set a min with do the body tag (mine is usually 980px)
body {
min-width: 980px;
}
b) set the same width to the viewport meta tag
<meta name="viewport" content="width=980px">
Users should now be able to:
- see the design as you have created it
- zoom the content (wich they couldn't if you used "initial-scale=1, maximum-scale=1" on the viewport meta tag)
- change the device landscape to portrait and vice versa with no issues