I'm creating an app in jQuery Mobile based on wordpress with a child theme for twenty twelve. Probably the CSS could be made better. The app loads fine and is without zoom and no scrolling with
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=0"/>
But when changing orientation on an iPhone from landscape to portrait I'm getting a wider screen than the actual page and the scroll shows up in the middle when there is an input-field in a form on the page. however when choosing (focus-ing) on a form input field the page re-renders and the width is correct with no scroll. I've used some responsive css present like #media only screen and (max-width:..
So is there a good way of doing this?
//This one triggers on orientation change
jQuery( window ).on('orientationchange', function( event ) {
if(event.orientation == 'portrait'){
// Rerender as if an input field is focused..
}
});
This could be a solution. Better ofcourse is to prevent it to build some good CSS from the ground up, but if using twenty twelve as a parent theme in wordpress - this code might come handy.
jQuery( window ).on('orientationchange', function( event ) {
if(event.orientation == 'portrait'){
jQuery('body').fadeOut(300, function(){
jQuery('body').fadeIn(300);
});
}
});
Related
I have a fairly strange issue that I'm experiencing with jquery mobile / phonegap and IOS.
I've created a web app with html / css and so far it works exactly as expected on android, (The content scrolls vertically in the viewport) however on ios (my test platform is an iphone 4s), the page is limited vertically to the viewport. It scrolls just fine, but all content that sits below the viewport vertically get's cut off, IE the only content that will display is what I see in the upper half of the page, nothing below the viewport will display.
an excerpt from my css file:
html, body {
min-height:100%;
overflow-x:hidden;
background-attachment:fixed;
}
body {
-webkit-touch-callout: none;
-webkit-text-size-adjust: none;
-webkit-user-select: none;
-webkit-font-smoothing: antialiased;
-webkit-backface-visibility: hidden;
-webkit-overflow-scrolling: touch;
}
and my html page, in the head section:
<meta charset="utf-8" />
<meta name="format-detection" content="telephone=no" />
<meta name="viewport" content="width=device-width; initial-scale=1; maximum-scale=1 minimum-scale=1; user-scalable=no" />
Here's a couple screenshots of the problem in action:
As you can see from the screen shots, the gradient "should" fill the whole page (ie, expand with content), and it doesn't as there seems to be a hard cutoff at the viewport edge, so any more than a single page of content is not getting displayed. While it's not visible in these screenshots the vertical scrollbars are appearing as they should and the scrolling works fine, just no content is displayed "below the fold".
I am not using iScroll or any other scrolling scripts, just fyi.
I'm not sure if this is some sort of height issue, as I have a min-height:100%; set on the html and body of the page, or if it's some sort of width-device-width issue in the meta tag? I also do not believe I have any overflow-y:hidden set, as that would have limited the content on other platforms, and they work perfectly.
I feel like I must be missing something really basic, as I'm sure it's got to be some sort of css setting somewhere that's limiting the content to the viewport only, and an exhaustive google search could find no similar issues.
Check if your apps default orientation is set to portrait instead of landscape, or if it even supports the portrait orientation. It almost looks like its displaying the app as if its in landscape mode while its clearly in portrait. You can find the available orientation in the Target>General tab, or in the info.plist.
So I've fixed it, and the weird thing is, I'm not exactly sure what I did to fix the issue.
I moved the .ui-page selector from the jquery-mobile file to my own css file, removed the min-height from the html selector and killed the overflow-x from the html, body selectors and boom, it now appears to be working as intended. Wacky... but hey, a win is a win. :)
Does anyone know an easy fix to make scrolling possible when using an iframe and fancybox2? The ipad, using mobile safari, still does not appear to allow scrollbars or touch scrolling
Do not show scrolls, just open fancybox with the height of the frame content, then user will scroll through popup as he does in usual window.
In the iframe template add mobile metas:
<meta name="HandheldFriendly" content="True">
<meta name="MobileOptimized" content="320">
<meta name="viewport" content="width=device-width, initial-scale=1.0"/>
Call fancybox like this:
if( /Android|webOS|iPhone|iPad|iPod|BlackBerry/i.test(navigator.userAgent) ) {
$("a.fancybox").fancybox({
'scrolling' : 'yes',
'type' : 'iframe',
'autoSize' : true,
'autoResize': true,
'fitToView' : false
});
}
You might want to set the width.
That works for me.
I've tried adjusting my meta viewport tag on a jQM beforepageshow etc it simply doesn't work and I guess that's pretty obvious why. I have one page with a highcharts chart on it and I need to have nothing inside my viewport tag which normally has width=device-width, initial-scale=1,user-scalable=no, minimum-scale=1.0, maximum-scale=1.0
and that's because I want the app to zoom out when the chunky chart goes in, has anyone had any brilliant ideas on how to have one page with different viewport settings? I could link to it without AJAX and then output the right meta tag conditionally but I'd rather not do this.
I dynamically changed the meta viewport tag on a couple of my mobile websites when I want to enable zooming for an image or something else that requires the user looking at small text:
var $viewport = $('meta[name="viewport"]'),
default_viewport = $viewport.attr('content');
$(document).delegate('#page-id-one, #page-id-two', 'pageshow', function () {
//these are the pages that you want to enable zooming
$viewport.attr('content', 'width=device-width,initial-scale=1.0,maximum-scale=5.0');
}).delegate('#page-id-one, #page-id-two', 'pagehide', function () {
$viewport.attr('content', default_viewport);
});
This code expects to be included after jQuery and the meta viewport tag. You can obviously change the contents of the viewport element as you see fit (I believe that Safari will allow a maximum-scale of 10).
I am using CSS media queries to create a web site with responsive design. When I open my test page on the iPad in either landscape or in portrait orientation, it looks fine.
However, when I switch from landscape to portrait mode, the page is shifted to the left. I can tell that the correct CSS is loading because other things on the page change. I can also drag the page to the right and it appears exactly as it does if I had opened the page in portrait initially.
I have my viewport set to:
meta id="view" name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0"
I added JavaScript to fix the iOS viewport scaling bug which used to cause the page to be zoomed in when switching from portrait to landscape. (I used the solution described here: https://gist.github.com/901295 )
I'm having problems finding the name for the bug I'm experiencing when switching from landscape to portrait. Has anyone else seen this or know how to fix?
The problem owner says that she "can also drag the page to the right and it appears exactly as it does if I had opened the page in portrait initially."
This makes me think that, for some unknown reason (a bug?), the page is scrolled to the left at an orientation change to portrait mode (otherwise you wouldn't be able to drag it back).
I had a similar issue and solved it with the following JavaScript workaround:
// ...
// Optionally add a conditional here to check whether we are in Mobile Safari.
// ...
window.addEventListener('orientationchange', function() {
if (window.orientation == 0 || window.orientation == 180) {
// Reset scroll position if in portrait mode.
window.scrollTo(0, 0);
}
}, false);
Maybe this will work for others too.
I managed to sort my similar issue out - perhaps this will work for you?
You'll need to work out if it's a particular div or other element that's causing it by deleting/reinstating different bits and retesting the page. Once you've worked it out try adding an overflow: hidden property to that element in your CSS - I used overflow-x: hiddensince my issue was horizontal scrolling but you may need to vary it.
Hope this is of use... good luck!
Jereon, your JavaScript worked for me. My viewport is:
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no" />
I'm using the Drupal Corporate Clean responsive theme. I have not had this problem using the Omega responsive theme framework.
The solution for this is as proposed by #ellawson
Problem is caused by some element not being scaled correctly by the browser when rotating the device. Find that element and apply overflow: hidden; or overflow-x: hidden; as he says.
Note: this question is a duplicate. I'll post the gist of my answer here.
2015 update
All the other answers are unfortunately incorrect, outdated, or misguided. Here's what works:
window.addEventListener('orientationchange', function () {
var originalBodyStyle = getComputedStyle(document.body).getPropertyValue('display');
document.body.style.display='none';
setTimeout(function () {
document.body.style.display = originalBodyStyle;
}, 10);
});
The code listens to the orientationchange event and forced a re-flow of the body element by hiding it and showing it 10 miliseconds later. It does not depend on any <meta> tags or media queries.
You said,
When I open my test page on the iPad in either landscape or in portrait orientation, it looks fine. However, when I switch from landscape to portrait mode, the page is shifted to the left
That is key. You just need to force a re-paint of the body.
Answers that suggest adding <meta name="viewport" content="width=device-width, initial-scale=1.0"> or variations thereof, as of Safari 7, no longer wors. Here's a demo. To make sure you see how it doesn't work, start with the iPad in landscape mode, load the page, then rotate. Notice the page doesn't expand to full height, despite using flexbox all the way.
Compare that to this page, where we use the hide/show body technique in production.
I came across this problem with an iPad and applied html { overflow-x:hidden; } . That seems to have resolved the issue.
try adding the following setting to your content properties: maximum-scale=1
or try this: user-scalable=no
here is the ios documentation
I have a web app running on Safari on an iPad. I am starting the app from the iPad home page. I want the app to start in full-screen mode, and to continue running in full-screen mode (i.e. not showing the Safari address bar). I have therefore added the following meta-tags to the site master page:
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black" />
<meta name="viewport" content="width=device-width">
I start the app from the iPad home page and it starts nicely in full-screen mode (not showing the Safari address bar) but when I click a to another page in the site (with the same meta-tags, as inherited from the same site master page) then the address bar suddenly pops into view (and remains in view). The link looks as follows (I am using jQueryMobile):
Home
How can I force the web app to remain looking like a 'native-app' by keeping the address bar hidden when navigating between internal pages?
It would appear that Mobile Safari does not 'natively' support full-screen if you use external links. As soon as you use an html anchor then it flips out of full-screen mode. The window.scrollTo may be a workaround that will work for some people, but I also want to avoid the way that the UI flips itself when transitioning to the non-full-screen mode too.
The answer is to use window.location.assign(). This keeps the full-screen app in 'native' full-screen mode. You just need to refactor your tags into javascript window.location.assign(url) calls - that then keeps the thing in full-screen.
Add jQuery and you don't have to modify any links,
$(document).ready(function(){
$('a').click(function(event){
event.preventDefault();
window.location.assign($(this).attr('href'));
});
});
Example link:
Next page without safari
maybe this: source
// When ready...
window.addEventListener("load",function() {
// Set a timeout...
setTimeout(function(){
// Hide the address bar!
window.scrollTo(0, 1);
}, 0);
});