I have an animation running on page load and with javascript I add a class containing the
-webkit-animation-play-state:paused;
Working fine on OSX safari and all other browsers (even PC) too but on mobile, only on iOS that the animation doesn't seem to paused when called.
Here's a fiddle on how the animation state is running and paused.
http://jsfiddle.net/uc9c5/2/
Try it on iOS, you'll see that it's totally ignored.
Workaround approach for iOS 8-9 Safari that use -webkit-animation: none !important; instead of -webkit-animation-play-state:paused;
This approach is for GWD, but can apply otherwise
Don't use Pause event in GWD (Google Web Designer)
Create normal event that calls a javascript function, set "-webkit-animation: none !important;" to the <div> (you can add/remove css class)
CSS Style
.no-animation {
-webkit-animation: none !important;
}
Javascript
div.className = div.className + " no-animation";
To resume, remove CSS class
Javascript
div.className = div.className.replace("no-animation", '');
Please note that when remove/pause animation, it will go back to frame 0 (00:00 s), so you may need to calculate the current opacity/position for the div
http://jsfiddle.net/duchuy/pczsufL9/
I've been given a design to implement which has a lightbox which has some content inside which includes links. This is all fine and working except for when it comes to iOS where it's not possible to interact with the content of a lightbox if its position happens to be on top of a video.
It's acting as though the video is on top of the lightbox content - even though it's behind. The issue occurs even with extremely simple barebones HTML.
Stripped back HTML:
<video id="home_video" controls preload="none" poster="http://www.videojs.com/img/poster.jpg" width="500">
<!-- video sources -->
</video>
<!-- positioned over the video -->
<div id="lightbox">
Not touchable on iOS
Touchable because it's not over a video
</div>
Associated stripped back styling:
#lightbox {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: rgba(255,255,255,0.5);
}
#lightbox > a {
display: inline-block;
background: red;
padding: 20px;
}
#touchable {
margin-top: 400px; /* taller than video */
}
I've put together a jsfiddle example. It includes some JS which alerts when you've successfully clicked/touched a link. On desktop browsers it's possible to click both links, on iOS it's only possible to click the second.
It might be worth noting that the issue occurs whether the lightbox is pre-opened on page, or after being explicitly opened as in this jsfiddle
I can think of a number of ways of hacking around the problem - such as moving the video off screen, replacing it with its poster image, or by transforming the video using translateX to hide it, but I'd prefer to leave the video where it is, if possible.
Has anyone stumbled across this issue before and found a solution? Any pointers?
This is a quirk of Mobile Safari, where it intercepts all touch/click events for elements on top of a video element, regardless of z-index or DOM order, only when the controls attribute is set.
So the solution is to remove the controls attribute and implement your own custom controls wit Javascript. You can use existing open source players to provide these controls for you (e.g. jPlayer, videojs, etc.), but you need to be careful because some of them have a special case for iOS where they will just use the native player controls. I think this is because it's simpler than making those mouse-centric controls work with the quirks of iOS (like touch and lack of volume control). So you need to check the documentation to see if there's a flag to force the player to use its own controls rather than the built-in ones.
<video width="910" height="544" controls>
<source src="resources/videos/movie1.mp4" type="video/mp4">
</video>
I have an HTML5 video that I need to be hidden initially so I tried a webkit transition on it to scale it up:
vidWrapper {
-webkit-transition: all .5s ease-in-out;
-webkit-transform: scale(0);
}
.vidWrapper.active {
-webkit-transform: scale(1);
Also here is my .js code that I use to scale up the video. I had to use a timeout because after displaying the video, the dom seems to need a chance to catch before I can scale it up:
setTimeout(function(){
debugger;
scope.m_vidWrapper.addCls('active');
},200,scope)
**NOTE if I remove the setTimeout, and just call scope.m_vidWrapper.addCls('active'); to start the transition, the video will just appear. and not scale up from 0 to 1 nicely
, this will work on Chrome and Safari but not ipad . I also tried toggling the display from none to block and it still won't show up. I have seen where if I leave the page I'm trying to display the video will flash visible , so it seems its there but maybe the DOM has to be refreshed somehow after I scale up?
As a workaround I ended up setting the initial scale value to 0.1 instead of 0 i.e: -webkit-transform: scale(0.1);
The document has a number of divs only one of which is visible at any one time (others are display:none).
When a div which was visible is hidden and then made visible again the videos within the div don't play any more.
However this is only a problem on iPad.
Any suggestions as to how to re-initialise them?
thanks
Derek
Having searched in every possible way for a solution it does seem that videos using video.js in a container that is hidden after video.js has initialised them become unplayable when made visible again.
So for now, when my pages detect that the browser is on iPad/iPhone they use the native video player.
To do this I place the includes for the video.js inside a javascript block in the head of the page so they are not loaded if iPad or iPhone is detected.
<script type="text/javascript">
if(!navigator.userAgent.match(/iPad/i) && !navigator.userAgent.match(/iPhone/i)) {
document.write('<link href=\"\/\/vjs.zencdn.net/c/video-js.css\" rel=\"stylesheet\" type=\"text/css\" \/\>');
document.write('<script src=\"\/\/vjs.zencdn.net/c/video.js\" type=\"text/javascript\"\>\<\/script\>');
}
</script>
I had this problem on firefox but it was because I was trying to stop the video after move its container div to a hidden div. I removed the "stop" code, the player seems to reinitalize?(and stop by itself) after being moved from one div to another on chrome, firefox and opera.
Before this simple solution, I thought to just re-add the video original html via javascript, it probably can be done after the div is hidden or before it is shown.
when using [-webkit-overflow-scrolling: touch;], the scrolling area does work well,
but it causes touch events stopping work out of the scrolling area.
Is there anyone had the same problem? Who can give me some official links about this new scrolling feature?
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>ios5 scroll</title>
<style type="text/css">
header {
background: red;
width: 300px;
height:44px;
}
.scroll {
width: 300px;
height:300px;
background: yellow;
overflow: scroll;
-webkit-overflow-scrolling: touch;
}
</style>
</head>
<body>
<div id="container">
<header>
<button onclick="alert('header');">won't work?</button>
</header>
<div class="scroll">
<button onclick="alert('scroll');">It works</button>
<div>text</div><div>text</div><div>text</div><div>text</div><div>text</div><div>text</div><div>text</div>
<div>text</div><div>text</div><div>text</div><div>text</div><div>text</div><div>text</div><div>text</div>
<div>text</div><div>text</div><div>text</div><div>text</div><div>text</div><div>text</div><div>text</div>
</div>
</div>
</body>
</html>
2011-12-27: I have fixed this problem but I still no wonder the real reason.
In my case, I have several sections in one web page, each section has a scroll area and a header, each time only one section is showed and use css3 animation combined with transform to switch sections. when add [-webkit-overflow-scrolling] in the scroll area of all sections, touch events stop working randomly, so I just add [-webkit-overflow-scrolling] in the section which is showed currently and remove it when the section is hidden. That works well but I still don't know what causes this problem.
I have the same issue, and I can also replicate it every time. I have a page that resizes elements to fit the screen when the orientation of the iPad changes. If at any point the element no longer needs to scroll, it will stop doing so thereafter even if the element is resized back to where it needs to scroll (e.g. flipping back to landscape for me). So it's definitely a bug, but I do have a workaround:
When resizing the element, I'm resetting the -webkit-overflow-scrolling to auto, then setting it back to touch. However, you have to introduce a delay between the two (50ms is working fine, didn't try any lower). So what I did was added an attribute of "scrollable" to the elements, and used the code below (using jQuery):
$("[scrollable]").css("-webkit-overflow-scrolling", "auto");
window.setTimeout(function () { $("[scrollable]").css("-webkit-overflow-scrolling", "touch") }, 100);
Hope this helps!
This is caused by having an <iframe> on the page. Many scripts create <iframes> to do their work including social tracking buttons (Facebook, Twitter, G+), analytics tracking (Google, etc.), and libraries like PhoneGap.
It doesn't matter how the <iframe> is displayed. display: none; visibility: hidden; width: 0; height: 0 does not fix it. If an <iframe> is on the page it will happen, sometimes intermittently and sometimes always.
The only solution I've found so far (which is turning out to not be very workable in a production app) is to delete all <iframes> on the page, create them only when needed (for example, when I need to call a PhoneGap API), and then delete them when finished.
I confirm I saw the same issue on a web app using extensively touch events and list scrolls.
Before iOS5 I was using iScroll, and everything was working fine;
With iOS5, I used -webkit-overflow-scrolling:touch to scroll lists to get faster scrolls.
The consequence is I met random occurrences of touch events no more working on various parts of the app. The issues generally occur after I scrolled a list. it affects randomly elements outside the scrolled area, typically a footer menu.
Reloading the app when in 'frozen touch' state doesn't unfreezes it : to unfreeze it, I had to close the safari tab, open a new one and reload, until I met again the issue while using the app.
The issue is seen on iPad2, iPhone 4, iPhone 3GS, all on iOS 5.0
Eventually, I deactivated the overflow touch scroll and came back to iScroll, and things work well as in iOS4 .
-webkit-overflow-scrolling + CSS3 Animations + Phonegap API calls = touch stops responding.
My phonegap app will work fine until I make a call to a Phonegap API, at which point the touch will stop responding on mainly the first element that has a event attached to it in the current view. A view for my app is body > div.current with the rest of the divs display none.
I can replicate this every time.
It is clearly a bug in iOS5.
Here's a variation on a few of the answers already listed.
My specific issue was that reorientation caused scrolling to stop working completely when -webkit-overflow-scrolling: touch was applied to an element.
Example: Landscape orientation is shorter and needs a scrollbar. Portrait is tall enough that no scrollbar is needed. Reorient to landscape; scrollbar is present but non-functional.
listen for the orientationchange event
do something which triggers a layout change on the scrolling element
ensure that the change is significant enough that the rendering engine doesn't optimize it away. For example, hiding then immediately showing does not seem to do anything. Anything that uses setTimeout() seems to work (perhaps it is the different execution context, I don't know).
Fading in and out works, or hiding and then showing with a short delay works (though it flashes). #Sari's solution for changing the scroll properties works and does not cause any visible redraw.
$(window).on("orientationchange", function () {
// use any valid jQuery selector
var elements = $("[data-touchfix=true]");
elements.css("-webkit-overflow-scrolling", "auto");
window.setTimeout(function () {
elements.css("-webkit-overflow-scrolling", "touch");
}, 100);
});
Note that I haven't tested this fix beyond my iPad 3 other than to ensure that it doesn't cause script errors in Chrome or IE 7/8/9.
In case this is of any use...Incorporating PhoneGap I was using Zepto to append ajax-loaded, scrollable content into the dom. I was then applying a css transition on it. There were no iFrames on the page.
I was experiencing the same issue as mentioned here, where scrolling would just stop working. When I copied the generated code into a separate file and tried that on the iOS simulator - everything worked as expected.
I eventually got it to work by querying the height of the parent container - just before the css transition. By adding var whatever = $('#container').height(); the scrolling worked.
To improve a little bit ThinkingStiff's excelent answer, you can avoid blinking
- if overflow:hidden is set
- if instead of 'auto' value just remove property:
$('.scroll').css({'overflow':'hidden','-webkit-overflow-scrolling':''});
window.setTimeout(function () { $('.scroll').css({'overflow':'auto','-webkit-overflow-scrolling':'touch'})},50);