I'm building an app for mobile and desktop. There are some assets that I don't want to show or to load when on the mobile device. Using the Bootstrap's responsive design there is a tag called hidden-phone which is used to hide assets when on the phone. However, they appear to still be loading in the background and using bandwidth. Is there a way to prevent this?
I've come across the same issue with Bootstrap Responsive Utilities. The problem is that browsers will load all the HTML images first, then apply the CSS rule that Bootstrap uses which is display:none for the particular element that you've told it to hide.
One possible solution is to avoid using these utilities and instead, display the images using the CSS background-image property. Then, you can choose the same screen breakpoints that Bootstrap uses with their Responsive Utilities or make your own. Below is a simplified example that I've used in the past (set of images for mobile, and a set of images for everything else).
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title></title>
<style>
#image {
background-image: url(largeimage.jpg);
}
#media only screen and (max-width: 480px) {
#image {
background-image: url(mobileimage.jpg);
}
}
</style>
</head>
<body>
<div id="image"></div>
</body>
</html>
You can find more info about Bootstrap breakpoints here: http://getbootstrap.com/css/#grid-media-queries
Are you including the viewport tag in your header?
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
If not, you are probably rendering to 1024px wide, which will affect the output. Also, the sizing is based on screen resolution, not the type of device in use.
If you want to interrogate the browser more, this needs to be done with JS. I do this in a few places, and inject classes into the HTML element for use with device/browser specific targets in a limited fashion. You may want to look at Modernizr as well.
Given the comments below, and that you are targeting an iframe you do not want loaded for mobile browsers, I would suggest using JavaScript to test for a non-mobile platform, and inject your iframe via JS, rather than using Bootstrap to "hide" the content.
Related
I build a react step by step form using material UI, I don't understand why I'm getting this behaviour when comes to responsive:
It is like eveything goes tiny. How can I properly make it responsive? Thanks!
This is the desktop version:
Use the viewport meta tag to fix that issue on mobile devices.
<meta name="viewport" content="width=device-width, initial-scale=1">
Put it inside the <head> element in your index.html.
The attributes supplied in the content above is very basic so if you want to add more configurations you can use the other attributes specified below.
Other attributes that are available are minimum-scale, maximum-scale,
and user-scalable. These properties affect the initial scale and
width, as well as limiting changes in zoom level.
See MDN docs for more information.
I'm building a site with materialize css.
The default mobile nav menu on materialize breaks on mobile devices for longer entries. Basically, the words will wrap to the next line and overlap the words below it displaying encrypt-o-jumble.
I went and added specific media queries generally formatted like this.
#media screen and (max-width: 870px) {
.xp-1 {
min-height: 100px;
}
}
I tested these in the chrome browser and they are perfectly responsive.
When I view the same site on any kind of phone, or the chrome browsers phone views the media queries activate as if they were on a smaller screen. Tablets are generally big enough not to trigger the media queries.
For example: at 375px on desktop a line will wrap to the line below. With the media queries this the element will expand, pushing the element below down and creating enough space for the whole link.
When viewed on a 375px iPhone x the element will expand, but the text will get smaller leaving blank space.
I have tried adding a few different meta tags:
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="viewport" content="width=device-width">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0">
Here's some screenshots of the menu:
On the iPhone X Chome view (375px):
Regular Chrome browser view at 375px:
Heres a link to the live site:
https://onesourcebenefits.com/
How can I make this display the same on mobile as it does in the browser?
I've read through a ton of info on this site so far, and am continuing to look into this. Any help would be appreciated. :)
In this case materialize was enforcing fixed heights on nested tags within li tags as in the example for their mobile nav menu. I removed the nested ul's and li's and replaced them with divs with padding and hover properties. Now the site is responsive.
Hello am using simple HTML (no responsive framework - very new to web development) and CSS. I want to make a page for mobile only screens. I am aware that there are responsive layouts and frameworks available, but at this point I do not want to use it.
Is there a way to "scale" (not re-arrange like in responsive design and flex box design) the HTML page to fit 100% of the screen. (no scroll, just 100% fits in the screen - more like an mobile app).
If you:
avoid explicitly setting the width of elements on the page, eg the width of an image or a div
and you don't have a viewport meta tag in the head of your doc, eg <meta name="viewport" content="width=device-width, initial-scale=1.0">
and you don't have media queries in your CSS, eg #media (max-width: 480px) {... }
then smartphones will typically scale the page to fit the screen.
Good luck, hope this helps!
I am trying to share my web page and I am using angular js variables in order to pass the meta tag values. For image, I am using it like this:
<meta property="og:image" content="{{imageUrlStr}}">
And for title:
<meta property="og:title" content="{{title}}">
But when I try to share it, facebook share popup displays this like {{title}} and the image is not visible.
When I inspect the statement over Chrome, I can see that all the variables are injected.
Any ideas?
Thx
I have an AngularJs mobile web application.
I use this meta tag to give the application its mobile look and feel.
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no" />
But in my application, I have an IFRAME where I want to display some content that is so big, that I would like for the user to be able to zoom on the content.
According to this: Allow zooming within iFrame but not on page in iOS that is not possible when using the above meta tag.
But then I discovered this component from Kendo: http://demos.telerik.com/kendo-ui/mobile/view/zoomable.html
Does anyone know how to use it together with AngularJS?
(I have a library called angular-kendo.js that I use for datepicker and combobox)
I got no replies.
So I resolved my problem by using a library called hammer.js.
Here is a good article: http://creativedroplets.com/html5-and-multitouch-hammer-js/