I would like to fix an issue I have on my website. I would like to have the safe bottom area the same color than the tab bar when scrolling, instead of the body background. What would you suggest me to do?
.header {
position: fixed;
bottom: 0;
right: 0;
left: 0;
height: 64px;
background-color: var(--black-3);
z-index: 9;
}
First screen
Second screen
Safari changing the tab/status bar color dynamically is a new feature of Safari 15. The release also adds support for the theme-color meta tag for customizing the color. From the release notes:
Added support for the theme-color meta tag to change the tab bar background and over-scroll area in macOS and iPadOS, and the status bar in iOS.
You have to put the <meta name="theme-color" content="#xxxxxx"> tag to your web page to use a specific color instead of the automatically picked one. Unfortunately this also means you can’t use your CSS variable for it but have to define the colour value in at least two places now.
Keep in mind that this also sets the top bar color for Chrome Android and the tab bar is at top in macOS and iPadOS Safari, so the effect may not be expected. The meta tag supports media queries in media attribute (see the release notes link) and changing the content attribute’s value using javascript should work as expected though (demonstrated in the Apple Developers video in references).
Note that content attribute accepts a CSS <color>. This means that the following is possible:
window.addEventListener("load", (event) => {
document.querySelector("meta[name=theme-color]").content =
window.getComputedStyle(document.querySelector(".header"))
.getPropertyValue("background-color");
});
I don’t have a device with Safari 15 beta available to test with, but I suppose you could also add the element dynamically. It works with Chrome Android at least:
window.addEventListener("load", (event) => {
let meta = document.createElement("meta");
meta.name = "theme-color";
meta.content = window.getComputedStyle(document.querySelector(".header"))
.getPropertyValue("background-color");
document.head.appendChild(meta);
});
Resources:
MDN: Standard metadata names: theme-color
CSS-Tricks: Meta Theme Color and Trickery
Apple Developers: Design for Safari 15 (theme-color is featured in the first part of the video. It also has information about using the safe area environment variables for content floating at bottom.
Edit: Added the javascript examples
My Ionic application have a detail view with transparent header. Applying CSS class "bar-clear" to my element is doing the job just fine in desktop browsers and when running the app on Android (see result here).
But when running on iOS 8 the header is white and opaque (see here).
Any idea why?
I did some research and people it got it working by setting bar-light to the header bar and then making these changes:
.bar.bar-light {
background-color: rgba(255,255,255,.66) !important; /* or transparent, or background:none */
}
.scroll-content {
overflow: visible !important;
}
See this playground: http://play.ionic.io/app/3cbf53eff565
Will it work once built? not sure but give it a go and let me know.
OS: iOS 8.1.1
Browser: Safari
Phone: iPhone 5C
We have a web page which takes 100% height and width. We have locked down the viewport so that the user can not scroll the page vertically or horizontally. This page is shared on Twitter via Safari web browser. When we view the the web page in the twitter app the bottom part of the page gets cut off. We are not able to view the page in its entirety. Even if we change the orientation multiple times still the cut off part is not visible.
The height of the part which is getting cut off is equal to the height of the twitter app container’s header (the part which has cross button, page title/url and share link) and the status bar (the part which has network status icon, time, battery level etc)
Note: This behavior is observed in iOS 8 only.
This has also been driving me crazy for the past several hours. The solution is to not use px or percentage based heights/widths but rather use position:fixed on your html and body elements, then setting top, left, right, bottom to 0. So your code will looks like this:
html, body{
position:fixed;
top:0;
left:0;
right:0;
bottom:0;
}
This forces the content to only be as wide and as tall as the viewport presented in twitters webview component without overflowing. Any code inside the body can now be 100% in either direction without fear of being hidden. This bug was affecting iOS9 as well. Confirmed the fix is working on iOS9.1 with latest Twitter app on ip6/6+, ip5, and ip4.
For anyone else coming across this, the fix I ended up using was
window.addEventListener("resize", function(){
onResize();
});
function onResize(){
document.querySelector("html").style.height = window.innerHeight + "px"
};
onResize();
this seems to work in the latest version of twitter's browser on safari.
When you scroll on a web page in iOS 7s Safari the URL bar shrinks and the bottom navigation bar disappears. In the site I am working on these two things to not happen.
The momentum/inertial scrolling was not working as well until I added -webkit-overflow-scrolling: touch; to the html element.
I can't imagine what element I have added to the code to have it lock up Mobile Safari like this.
Hoping this isn't a repeat question, it's hard to know what to call this besides "shrinking/hiding".
I accidentally stumbled upon the solution last night in an article by Maximiliano Firtman's article Breaking the Mobile Web. The article points out many issues with the new Mobile Safari in iOS 7.
The solution to my problem was close to his answer (his being if there is overflow: scroll; on your page it will not trigger the auto UI hide feature) mine was an overflow: hidden; style.
In recently testing a web application on Windows/Mac desktop browsers - and then on an iPad I noticed various differences in Safari that I wasn't expecting. Even though the version # is the same.
I'd like to compose a list of those differences (for myself and others) to have as a developer reference.
e.g. in Safari on the iPad
iPad Safari takes full control of Select list/option styling
iPad opens the onscreen keyboard when an input element receives focus, thus inline floating calendar widgets (and the like) may not work as expected (or need to be altered)
iPad Safari doesn't support position:fixed like desktop Safari < iOS 5
iPad Safari (similar to iPhone/iPodTouch Safari) automatically hyperlinks 10 digit numbers to offer phone #/contact options
iPad Safari prompt('long message...','default'); shows only 1 line of the message (though it does provide scrolling of the message
I've heard from others that certain JavaScript doesn't work, etc. etc. but I have yet to fully test it thus I'd be grateful for any discoveries that you may have encountered.
A few more for you:
No Flash
Lousy iFrame support (so facebook like etc. needs a custom implementation for iPad)
Weird caching limitations
HTML textAreas doesn't get a scroll bar (you have to double-finger swipe - which of course, is amazingly intuitive)
In general. Treat it like a scaled up iPhone, not a scaled down Desktop.
I thought this might be useful: Apple's guide to preparing web content for the iPad
Just been caught out by the position:fixed issue my self
Safari on iPad has the same issue with button width/padding as on the iPhone
iPhone <button> padding unchangeable? describes this problem and a solution for removing padding on a button with text, but this does not help you if you want a button to be narrower than the padding itself (e.g. for a button that only has a small icon on it). To do that, I had to surround the button with an outer element with a defined width and overflow: hidden like so:
<span style="border: solid 1px blue; display: block; width: 16px; overflow: hidden">
<button style="-webkit-appearance: none; border-width: 0"> </button>
</span>
(the blue border is to show where the button is, it's not critical to the hack)
jQuery's offset() doesn't work: http://bugs.jquery.com/ticket/6446
It also looks like iPad Safari has issues with elements with overflow:auto; that therefore should show scrollbars (test page with div's and iframe's).
iPad Safari seems to have trouble handling background images in rare cases, showing weird lines of lower lying content.
There's not a lot about this in Google (yet).
iPad browser doesnt support file uploading(even if it supports it will useless as iPad does not have a standard File Browser). The file field appears with a Choose File button grayed out.
Beside doesn't support scrollbar in TextAea, it seems that we can using javascript to make text in TextArea selected automatically too.
This code will only move cursor to the end of text in TextArea.
<div>
<textarea id="text-embed-code" autocapitalize="off" multiline="">
There is a fox running after chrome.
</textarea>
<button onclick="testSelectText(event);">select text</button>
</div>
<script>
function testSelectText(e) {
var box = document.getElementById("text-embed-code");
box.select();
e.preventDefault();
return false;
}
</script>
There appears to be a bug in iPad Safari where a CSS element with both a background image and a background color is rendered with a slight border in the color of the background color. It should fill with the background image all the way to the edge of the rendered element.
I just had the same bug on my site, when trying to view it on an Ipad. The HTML structure is like:
<div class="main"> <!-- background-color: white -->
<div class="left"></div> <!-- background-image: url(some_transparent_png) -->
<div class="content">...</div>
<div class="right"></div> <!-- background-image: url(some_transparent_png) -->
</div>
The left layer uses a background-image, whereas the main layer uses just a background-color. The Ipad view shows a slight border at the edge of the left and right layer.
When i add
-webkit-background-size: 100% 100%;
to the left and right layer, the border disappears.
You can now control the styling of select lists on iOS by resetting it with -webkit-appearance: none;
This rule fixes animation flickering in Safari on iOS devices:
body {-webkit-transform:translate3d(0,0,0);}
There appears to be a bug in iPad Safari where a CSS element with both a background image and a background color is rendered with a slight border in the color of the background color. It should fill with the background image all the way to the edge of the rendered element.
24 bit transparent PNGS ABOVE A CERTAIN FILE SIZE don't render on the iPad2.
I can however get 8 bit ones of the same dimensions to render.
I haven't found out what this maximum file size is in order to get them to render.
I'm currently working on a small responsive web-app which makes heavy use of the iframe youtube api. Apparently the ipad version of safari doesn't support a few html5 methods which I use heavily in this project.
One of them is window.postMessage, which is a way of interacting with scripts on other pages, for example the a script that is used "within" that iframe. Autoplaying videos also doesn't work.
Frame problems. iPad Safari will both hide scrollbars and expand frames to the size of their content.
Changing the frame tag to include scrolling="yes" and noresize="noresize" appears to do nothing.
Some sites look fine on everything, even a Dreamcast browser, but not on iPad. The issue can be fixed using tables and iframes instead of normal framesetting (cols and rows, etc).
I also discovered that contenteditable is not supported in mobile safari, thus using a plain textarea is a better bet. Apple Developer Docs
position: fixed;
Does not work in iOS 4 but does work on iOS 5.