I'm having a problem with on iOS quite unusual - on a form-style screen when I need to type information into a field, the keyboard pops up, but the screen doesn't go up nor allow scrolling, making it impossible to see what I'm typing.
In CSS, I'm using this within classes:
overflow-x: scroll -webkit-overflow-scrolling touch;
overflow: hidden -webkit-transform translate3d (0,0,0);
The curious thing is that on Android is normal...
Why is this happening? What should I do?
The keyboard on iOS behaves in a very special way, here's a quote from a great article on this topic The Eccentric Ways of iOS Safari with the Keyboard:
The fundamental problem is that when the soft keyboard appears due to a user tap on a text input box near the bottom of the screen, Safari doesn’t resize the browser window but instead moves it upward such that it is partially offscreen
You're likely preventing the body to move up, so make sure there's no code that would interfere with that.
I'm building an iOS wrapper application for a web page, which was built using Bootstrap, at the top of my web app is a .navbar div, not fixed or anything and displays perfectly on first load.
The problem starts when I touch an input, type and then hide the keyboard. Once the keyboard has hidden the page has been moved back down, but the navbar is nowhere to be seen.
It turns out this was caused by a bug in the CSS code which gave a margin to the body. The simplest way to fix this was to change the CSS. Although I'm still none-the-wiser as to how control the UIWebView in such situations.
I am trying to scale a div in my HTML page. This div contains a lot of canvas elements and other div elements. Basically this div acts as the container for all other items in the page. With Chrome "23.0.1271.95 m" and IOS6.0 safari, the items present on the right and the bottom part of this div do not appear after scaling. If I resize the window (or change the orientation on iPad), the div scales correctly and the items begin to appear, but again disappear after a certain size.
This used to work fine with IOS 5.0 and previous chrome/safari versions. Is this a bug in latest webkit version? Also, is there any workaround to avoid this behavior?
I had got a solution for this long back but forgot to update this post. This happens because of layer compositioning done by chrome. Please add translate3d(0px, 0px, 0px); in the transform string. Adding this will create a new layer for the item and issue will be fixed. :)
Read more about layer compositioning here : http://www.chromium.org/developers/design-documents/gpu-accelerated-compositing-in-chrome
Must use the JSFiddle on iOS to see issue :)
Developing an iOS web app, and have multi panels which are translated -480px on click (by adding a class with JQuery).
When I use -webkit-transform: translate: (480px,0); on the first navigation button, everything is fine except the input[type=range] becomes unresponsive.
I originally had this: http://jsfiddle.net/b4ung/2/
And later I added -webkit-perspective: 1; to the body. This fixed on Safari but not on iOS: http://jsfiddle.net/RLywz/2/embedded/result/
Can someone please tell me how to get the range function to work on iOS, and why it doesn't register after the translation?
Just for further note, if I change the transform to "left: -480px" the range works, but then becomes blocky when animating.
Any light would be tops, as its quite annoying (and if its a bug can someone file it 'cause I'm not a developer)
Edited to make the problem more clear, and show updated JSFiddle
I had the same problem, and I was able to hack it by setting the panel's css property to translate(0,0) when it needs to have the range working.
In order to have the animation/position right, I wrapped the element with a div and set the x position as needed and shifted the panel's translate property when the range doesn't need to be active. Hope it works in your structure.
I got a video element on a page that's working fine both in safari mobile and desktop.
I have a seme-transparent pull-down menu that's working fine. The problem is, when the menu is over the video element, on the desktop safari i can see the video under the menu (as desired), while on the mobile version the video element stay on the foreground (ugly) no matter what i tell the css. Is there any workaround?
The issue only occurs if the video element was dynamically created. If the element was just in the page as it loaded, z-index works fine.
You can fix z-index on dynamically created videos by giving the video element -webkit-transform-style: preserve-3d.
Yep, it's as bad as haslayout on IE!
Unfortunately not.
Based on my experience and understanding of how iOS currently works, this isn't possible.
Mobile Safari on the iPad cuts a hole for a Quicktime window , which plays back the video using the built in hardware acceleration to improve battery life. (The iPhone and iPod Touch just open it up in a separate window to achieve the same effect.)
This window doesn't play nicely with the other HTML on the page. In fact, I haven't found a way to get mobile Safari to display anything on top of a tag. My guess is that this is because the hardware acceleration only allows for video scaling and positioning, and that it's only able to handle one video at a time.
I'm using flowplayer and a simple CSS dropdown menu and had the same problem.
I have drop down menu that, when tapped, covers part of the video area. The submenu shows up over the video as expected, but no touch events were being sent.
I fixed it by combining a couple of suggestions from others answering this question: I set visibility:hidden when opening the menu and visibility:visible when closing the submenu, AND set the -webkit-transform-style:preserve-3d CSS property on the video.
Here's the pertinent code. I left out the CSS for the menubar, but it does what you might expect - resulting in a menu that covers portions of the video.
menu and video HTML
<div id='nav'>
<ul>
... <!-- bunch of ul/li stuff here for the menu and submenus -->
</ul>
</div>
<div id='videoplayer'><!-- for flowplayer --></div>
CSS
video {
-webkit-transform-style: preserve-3d;
}
Javascript
$(document).ready(function(){
$("#nav li").hover(
function() {
$(this).find('ul:first').css({visibility: "visible",display: "none"}).fadeIn(300);
$("video").css({visibility:"hidden"});
},
function(){
$(this).find('ul:first').css({visibility: "hidden"});
$("video").css({visibility:"visible"});
}
);
);
I have managed to place a menu div over a html5 video tag in mobile-safari on the ipad. To be honest I didn't have any problems and it just worked. It could be though because I was using CSS3 animations and therefore the GPU? You could try using a hack to add an element to the GPU. If you put -webkit-transform: translateZ(0); on the element it should force it to use the GPU...
When you have an element you want to be in front of your <video> in Safari, you need to set into that element the transform: translateZ(1px) or more pixels, as Safari is setting to your <video> element a 0 value for Z axis (transform: translateZ(0)).
This is the only thing it worked to me. No z-index, no transform-style:preserve-3d.
I ran into this also. The only thing that I could get to work for me was to add
display:none
to the video tag when showing a div over it that needed to be clicked on.
-webkit-transform-style:preserve-3d and -webkit-transform:translateZ(0) didn't work for me.
Using Flowplayer with the ipad plugin and the controlbar plugin allowed me to remove the ipad created control bar and replace it with something that can be z-indexed below my modal windows.
You can fix z-index on dynamically created videos by giving the video element -webkit-transform-style: preserve-3d.
This worked for me with a dynamically created video element. I also set the z-index of the over-laying div to z-index: 888; which may also have helped.
I had this problem which was occurring on mobile devices with an off canvas menu. When the menu was over the video you could not tap any of the menu items.
I fixed it my moving the video somewhere else when the menu was on by positioning it absolutely at -100000px when the menu was not displayed it set it back being positioned relatively.
I found using display none did not work as when you set it to block again the video would not work.
I also tried setting the height to 0 - this did not work as the video still seemed to take up the space even though you couldn't see it.
The final method seems a bit extreme but it is not really noticeable when it is being used.
This is the code that will work on both the iPad and iPhone. I tried removing the controls and then add them again, but this worked only on iPad not on iPhone. After remove the opacity and then add it again it worked on iPhone also.
$("#overlay_open").click(function(){
$("video").prop("controls", false);
$("video").css("opacity", 0);
});
$("#overlay_close").click(function(){
$("video").prop("controls", true);
$("video").css("opacity", 1);
});
Just ran into this issue today & had to cobble together a solution from multiple answers since none fully handled the problem ...
I have video elements in a collapsed "table view" style list that were capturing touch events on iPhone when trying to tap on other list items. On iPhone the videos would play when tapping other collapsed elements that happened to be occupying the same spot on screen.
Fixing this required all of the following:
1) Using this:
video{
-webkit-transform-style: preserve-3d;
}
... didn't seem to have any effect, but I left it in anyway. Everything's working now so I don't want to screw with it further :)
2) Toggling visibility: hidden alone didn't work, and display:none didn't work as expected.
3) In addition to "visibility" the HTML5 video tag controls attribute also has to be added/removed dynamically. Either:
$("video").css({visibility:"hidden"}).removeAttr("controls"); or $("video").css({visibility:"visible"}).attr("controls", "controls");
4) Must set visibility/controls on document load based on initial browser/screen size
5) Although the main concern was the screwy iPhone behavior, I also had to account for responsive window size changes above my smallest media query breakpoint of 600px - otherwise the videos would appear/disappear at the wrong screen sizes.
$(window).resize(function(){
if ($(window).width() > 600){
$("video").css({visibility:"visible"}).attr("controls", "controls");
}
});
Quite a pain to work around what's essentially a stupid mobile Safari bug... I sure hope it works on iPad when I test it later...
For anyone running into issues with this still, another fix that ended up working for me was to change the options in the embed code to not allow controls, suggested videos, and video title and player options. I added a simple Modernizr.MQ query to change the src for tablet and mobile, and included the following to the iframe src for mobile:
?rel=0&controls=0&showinfo=0
I never completely tracked down why this works, but my guess is that the controls have some user-agent style that gives them a high z-index and makes the element sit on top of everything.