Mobile Chrome vh units fix

Update March 2019 #

Check this fix too. It works really well in most cases.

If you ever used vh units and tested your work on mobile Chrome (iOS and Android), you probably were annoyed by page jumping when you scroll.

As you probably know vh units are based on the window height. When you scroll, Chrome's address bar disappears and chrome actually changes window height. Also triggers window resize event. So when it does happen it changes the value of vh unit, making your elements resize, and page jump. On Android, keyboard toggle will do the same.

Well I made a plain JavaScript library to solve this problem.

Demo and documentation are available here.

How does it work? #

On load, it will get the element and set them fixed height in pixels, using this formula:

window height / 100 * given vh value

Library listens for the window resize event, and only if both dimensions are changed (which on mobile means orientation has changed) it will recalculate and apply fixed height based on new window height. Please note that Android Chrome has a bug - when keyboard pops up, it triggers orientation change

Library will only do this if it detects Chrome on Android or iOS.

Usage #

It accepts one parameter, which is an array of objects. Every object should have CSS selector and height in vh units. All elements that match given selector will be fixed.

var options = [
  {
    selector: '.Bears', // Mandatory, CSS selector
    vh: 150,  // Mandatory, height in vh units
  },
  {
    selector: '.Foxes',
    vh: 50
  },
  {
    selector: '.Horses',
    vh: 100
  }
];

var vhFix = new VHChromeFix(options);

React Component is WIP #

I have a React component already done in a another project, but I need to extract it, and pack it up as a separate npm package for easier usage.

Grab the code on GitHub.

Comments (11)

5. June 2019

Miklos

This is great, thanks. However, it worked for me by replacing the last line of js file with this:

element.domElement.style.height = (document.documentElement.clientHeight * element.vh / 100) 'px';

17. August 2018

Stanko

Hello Dusan, I've just tested it on iPad simulator and it works as expected.

Cheers!

Dusan

Nice article,

can this help with IPad devace?

Problem start after active virtual device(on browser mode), after hiding, whole content move up for 20 px and forw/back arrows are half hidden with statusbar. (Height of main wraper is 100vh)

9. May 2018

Hello Pierre,

If you want to apply it on all of your headers, just make sure they share the same class (for example .header) and pass that as an option. If you need more than one class, library supports multiple selectors as well.

var options = [
  {
     selector: '.header', // Mandatory, CSS selector
     vh: 100,  // Mandatory, height in vh units
   }
];

var vhFix = new VHChromeFix(options);

Hope that helps, cheers!

Pierre

I just had a question about usage. I am using vh to define the size of all of my headings. Can I just use the body selector with a height of 100vh so all my responsive headings work?

30. August 2017

David

Makes sense. I'll keep an eye out for it.

Thanks guys!

@David, I have working React component and I plan to release it on the npm. But it depends on some other decorators and I'm thinking of the best way to separate them before publishing.

This is a very novel way of going about this rather annoying issue. Has there been any progress in turning this into a React component?

16. August 2017

brandon

Very awesome! thanks for this, you saved my project!

30. January 2017

Hi Adam,

It is missing, thanks for pointing it out. I just added MIT license to the repository.

Adam

Hi,

Many Thanks,

Update March 2019 #

How does it work? #

Usage #

React Component is WIP #

Share on:

Related posts

Comments (11)