Category: Fixed header flickering issue on scroll

Fixed header flickering issue on scroll

Learn Development at Frontend Masters. A reader sent me in a GIF showing off a cool effect they saw on Google on mobile. Presumably the homepage you see when you launch Chrome on Android? OH: I'm a mobile web developer, so I basically spend all day getting requests for content to stick to the top after some scrolling.

Little choppy, but the idea is there:. All we do is think of and design for the two different possible states:. We toggle between them simply by changing a class name. There is no trickery with having two search forms that reveal themselves in different scenarios. Much easier to just move a single one around. The trick here is applying that class at just the right moment.

In our little demo, we can just test for when that perfect moment would be and hard code that into some JavaScript watching for scrolling. If the page has scrolled down pixels or more, it will have that class applied.

Even if you go down and come back up the class will go away because this little function gets called on every scroll event. This is the kind of thing that would be sweet to do in CSS alone.

Note that this demo relies on fixed positioning, which has a sketchy history on mobile. Some reading:. There are a lot of magic numbers in this demo. Anytime you are setting heights there should be some warning flags happening up in your brain.

In this demo, if that centered image in the header changed height, it would look weird pretty much no matter what. Even if you fixed the header to look right after a change, the JavaScript has corresponding magic numbers for when to change state. Perhaps some version of using waypoints or the concept of it could make a more bulletproof system. Frontend Masters is the best place to get it. On iOS 7 and less yep, the event is only triggered at the end of the scroll. Not on Chrome for Android, and not on iOS 8 have to test for the last one.

Remy has a couple of good functions for debouncing and throttlingthe latter is useful for resizing for example. Here is the link. Worked very well on iOS7, but not on iOS6. Looks good. Three-State Version. I like it.

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Forked you : same idea, but with an intermediate top position so I could ease the transition to its fixed position. Likewise with the top bar background color.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.

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Okay so I looked through past issues and I did find quite a few issues on affix plugin and scrolling glitches but none seems to fit this case, so if I'm wrong thanks for pointing the solution to me. The issue is only happening on IE and Edge. Operating system: Windows 10 Browsers: Chrome Tix That's not a good fix.

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Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Sign up. New issue. Jump to bottom. Labels browser bug confirmed css v4. Milestone v4. Copy link Quote reply. This comment has been minimized.

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Sign in to view. Tried the "backface-visibility: hidden" trick but it didn't work.

Keep Headers Visible When Scrolling Through a Report (Report Builder and SSRS)

Update ads code and styles also fixes twbs in different way Fixes twbs : Mention. Sign up for free to join this conversation on GitHub.

fixed header flickering issue on scroll

Already have an account? Sign in to comment. Linked pull requests. You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window.If you ever had to fix element on scroll, you probably had an issue on iOS Safari and other mobile devices.

Element will usually flicker, and disappear until scrolling has stopped completely. Just force GPU acceleration by adding transform: translate3d 0,0,0 ; to your element.

This may be helpful to some others. Wow, if you had a donate button on this article I would pay you. You fixed my issue of hours of research! Thanks for the article I tried it directly on my element fixed, but the fixed position somehow got canceled? Hello Jonathan, probably something else in your code removed it. Wow, fast reply, thank you! OK it was because I put them in one single class, but still I got these flickering….

Hey, I need to understand one thing, i must to apply translate3d at every element that it will pass scroll through the fixed element? Not sure what you are asking, but my guess is - should you apply translate3d to children of the element with position: fixed?

It depends of the usecase, like Matt suggested, if children elements are flickering you should apply translate3d on them. Hi Stanko! I have tried with your solution. But in our side is not working in iPhone.

Animated Sticky Navbar - Resizing Header on Scroll - Sticky Header On Scroll with CSS and Javascript

Please let me know what i wrong in below code. It was unreadable, next time please try making example on codepen or jsbin. I had an element whose styling would change from relative to fixed but would sometimes fade out and no longer work after a few events on MacBook Air Safari OS Adding this CSS styling to the element resolved the issue.

Can you think of any reason why this would happen? Unfortunately, without a example it is hard to see what is going on in your case. Try applying transform: translate3d 0, 0, 0 and backface-visibility: hidden hacks, but it is hard to tell if that is going to help. Hi, Why is this not working for me? Matt, when I have a input at the bottom of the page and on its focus, I get extra white space while scrolling.

How to get rid of this white space. When I have a input at the bottom of the page and on its focus, I get extra white space while scrolling. All rights reserved. Made in Serbia.To prevent row and column labels from scrolling out of view after rendering a report, you can freeze the row or column headings. How you control the rows and columns depends on whether you have a table or a matrix.

If you have a table, you configure static members row and column headings to remain visible. If you have a matrix, you configure row and column group headers to remain visible. If you export the report to Excel, the header will not be frozen automatically. You can freeze the pane in Excel.

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Even if a table has row and column groups, you cannot keep those group headers visible while scrolling. You can create and modify paginated report definition. Each authoring environment provides different ways to create, open, and save reports and related items. Right-click the row, column, or corner handle of a tablix data region, and then click Tablix Properties.

On the design surface, click anywhere in the table to display static members, as well as groups, in the grouping pane.

fixed header flickering issue on scroll

The Row Groups pane displays the hierarchical static and dynamic members for the row groups hierarchy, and the Column groups pane shows a similar display for the column groups hierarchy.

On the right side of the grouping pane, click the down arrow, and then click Advanced Mode. Click the static member row or column that you want to remain visible while scrolling.

The Properties pane displays the Tablix Member properties. Skip to main content. Exit focus mode. Note Even if a table has row and column groups, you cannot keep those group headers visible while scrolling.

Note You can create and modify paginated report definition. Is this page helpful? Yes No.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Already on GitHub? Sign in to your account. The header appears to not redraw correctly so it flickers. I've tried to reproduce it on Chrome It can be reproduced in Safari 8. I'll let you know if I find out anything more, but I guess don't worry about Chrome for now. Ok, thanks krzysztofspilka! We fixed one overlay flickering problem inbut I'm not sure if it is the one you described.

Skip to content. Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Sign up. New issue.

Jump to bottom. Labels Core: handsontable Guess: a day or more Type: Change. Milestone 0. Copy link Quote reply. Safari is Version 8. I don't see any such issues in Chrome or Firefox. This comment has been minimized. Sign in to view. AMBudnik added Priority: normal labels Mar 12, AMBudnik mentioned this issue Mar 23, In typical mobile apps I create, I tend to have a header area, a content area and in some cases a footer area.

The content area is wedged between the header and the footer or the bottom of the document if there is no footer and the content needs its own scroll functionality rather than what the built-in browser scrollbar provides. All of this works great in desktop browsers and just about any mobile browser.

fixed header flickering issue on scroll

It works fine even on an iPhone, but when running on an iPad more often than not but not always — apparently it depends on the type of content the content area will simply not scroll. No amount of rotating and refreshing makes it work. The content styling on the container is applied to most pages in the application, yet frequently the failure occurs only on a few or even just one of the content pages — even though the content is hosted in the same freaking scrolling container.

In order to get a div to scroll you have to use the —webkit-overflow-scrolling: touch style to force scrolling to work smoothly.

Most reasonably modern mobile browsers ie. Android 4. According to rumors Apple does this on purpose to discourage custom scroll schemes in browsers to more or less force usage of the stock browser scrollbar. The reasoning is that the stock scrolling is very efficient while custom scrolling is supposed to be confusing and also is a resource hog for battery life. Notice the position: fixed style, which would appear to be the most obvious thing for sticky headers.

Now all issues of positions fixed aside, the above actually worked just fine for my application on every browser except on an iPad. And then only on a few content pages. The above is basically a base container layout into which other content is loaded for each page. In this case Angular views inside of the content-container element. Out of 10 pages though 2 of them would fail to scroll properly. But unfortunately the scroll behavior went to shit as well as the nasty choppy scrolling returned.

If you only need to scroll a single screen or less, this might be just fine. However, if you have longer content that scrolls more than a screen the default scroll choppiness is really unacceptable so this is not going to work. Position fixed and absolute are somewhat similar in behavior.

Both use x,y positioning in the view port and both are outside of the DOM document flow so other content is not affected by the placement of containers. Both require zindex positioning to determine vertical priority in the view stack. Position fixed keeps the element pinned at whatever position you set it to regardless of the scroll position of the browser. This makes sense in some scenarios where you actually want to scroll the entire page but leave content in place.

The key to remember is to not use it when you build have your own scrollable content on the page. I know where everything is positioned and keep the content area effectively wedged in the middle of the statically sized elements.A way of thinking about the user interface.

Google is implementing it across its product line, so you have undoubtedly seen it before. In Material Design, drop shadows play a functional role. So a header bar usually does not have a drop shadow until the page scrolls.

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When scrolling, the content has to slide behind the header bar, so the header bar gets a drop shadow to show that it is closer to the viewer than the content which is sliding underneath.

Google implements this effect with a Javascript function that fires on the onscroll event and sets a class on the body that can then be used in CSS.

But then I got an idea. Surely I could use this somehow to have a shadow slide down when we scroll? Well, I have not found a practical way to have something move down when the page scrolls down. The direction of the movement must be the same as the content, so opposite the scroll direction when we scroll down, the content appears to move up. Instead, I came up with another idea.

What if, instead of the shadow appearing from behind the header, we could use a cover element that would hide the shadow initially and then reveal it on scroll?

In all modern browsers… except.

Scroll-Then-Fix Content

So hopefully once that releases, this effect will work cross-browser. Now for the implementation details. I decided to keep it low on class names and use a header element as the basis for the demo. Inside this header, I nested a div to contain the header content.

I threw an h3 with a caption in there for the demo but that can be anything you like. Then the styles. This is where all the magic is happens.

Those of you who have been working on websites back in the day, when we had to use tables for lay-out, might remember this golden oldy: CSS sliding doors.

We used to use multiple images that we let overlap one another to create the illusion of rounded corners. Of course today we just use border-radius, but the idea is still relevant today. I used it here to create the illusion of the shadow appearing on scroll. In fact what is happening is that we reveal the shadow on scroll by making it sticky and then having a cover element that slides away with the page content.

In the CSS above, we make the header element 16 pixels taller than we actually want it to be. Using a negative number here allows the header to slide out of view for 16 pixels. These 16 pixels are what we need to have a cover element below the header which will slide up, behind the header content, revealing the drop shadow below.

This creates a gradient that will make the shadow smoothly appear on scroll. I am using a third element for the shadow itself, because the cover element needs to be hidden behind the header content and the shadow needs to be behind the cover.

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