It’s about time to flip the mobile user interface vertically.

I have no idea what language this is

It was easy to tap “Back” or “Edit” with your thumb on the original iPhone. On iPhone 5, it became harder. Since the 6, it’s almost impossible.

Apple has added two features to make things less bad. The first was a gesture where you slide from the left edge of the screen to get back. The second was Reachability, where you double tap the Home button to make everything on the screen shift down so you could reach the top row of buttons. This already felt like a duck tape fix.

The question is: why put buttons on top and then add obscure gesture to reach them when you could just put the buttons on the bottom in the first place?

Windows Phone has the browser’s address bar on the bottom:

On some screenshots it’s actually on top, so I’m not sure. Anyway, it should be on the bottom

Apple, when will you do the same?

It’s interesting that the revolution has already happened in Maps. Before and after:

The search field and results have moved to the bottom. Why did this change only in one app?

We’ve designed Sayve, the smart voice recorder so that all the important controls are reachable. A couple of intermediary user interface layouts:

At first, the audio controls were on top (the left layout). Then it moved down (the right layout).

Finally, all the user interface changed to gravitate towards the bottom:

I’m hopeful that Apple will do something similar throughout iOS 11.

When you turn the things upside-down, you may not like the result aesthetically at first. But our idea of what’s beautiful is largely formed by the technology.

The rule: in the mobile user interface, put the controls on the bottom.

The letter x is not a multiplication sign. Use the times sign (×) to denote multiplication:

Notice how the proper multiplication sign is aligned with other mathematical operations signs. Using x in place of × is as sloppy as using programmer’s quotes (") in place of actual quotes (“...”). Also, when you write 5x, it means 5 multiplied by x or 5×x. Probably, not what you were trying to say.

Sometimes my students would come up with a layout like this:

It may seem that things are aligned, but they are not. Can you see what’s wrong? I would ask, how is the heading positioned? They would say, it’s centered:

How is the text aligned then? They would say, it’s left-aligned:

And how was the left margin chosen? They would say, it’s aligned with the heading. But this means that the position of text depends on the length of the heading. What would you do with this if the text changes on another screen?

This doesn’t work as a system, because this structure is unstable. It reminds me of the fragile Windows Start menu:

You must be careful enough not to breathe, or the whole thing will fall apart.

So, generally, do not align a piece of text to an itself-unaligned part of another text:

Because when you translate this text into a different language, really weird things will happen:

In part 1 I’ve covered the difference between the Beck’s London underground map, our Ekaterinburg metro map, and the Vignelli’s and Hertz’s maps of New York subway. In part 2, I’ve highlighted the more subtle details specific to the transit maps of Barcelona, Paris, Oslo, Moscow and London.

All these differences in maps were because of the differences in the cities or their transportation systems. But there is another reason for the maps to be different: aesthetics.

The transport map is not only a tool, but also is a notable object of graphic design in a big city. So even if you can make do with the Beck’s design language, you will get a London map, no matter what you depict. The transport system must have a face, and aesthetics is as important as logic.

The main feature of the Moscow metro map is the Circle line. It doesn’t fit the Beck’s language, but it’s very important to Moscow. This is not Moscow:

This, on the other hand, is:

London also has Circle line, but it has never been depicted as a circle. Today, it’s not even a closed loop:

These Circle lines are large elements and form the overall image of the map.

But little details also influence the perception of a map.

In London, the black rings of the transfer stations are noticeably thinner than the lines. The “corridors” are of the same width. The stations’ ticks are square, stick out at 2/3 of a line’s width. The names are typeset with blue New Johnston:

In Moscow, the fat rings of the transfers are coloured with their line’s colour. The “corridors” are much thinner and have a gradient. Some transfers are circular. The station ticks stick out at full line’s width. The names are typeset with black Moscow Sans:

Look at this tram map:

It’s obvious that it’s a London tram map, not some other one. It follows the London transport graphic design standards — the rings, the ticks, the captions.

When we see the beige background, the particular palette of the lines, the filled station disks and the distinct designation of the transfers, we immediately recognise the Paris map:

Jug Cerović follows an unusual 18-degree angle grid in his Luxembourg map. If you saw it once, you recognise it every time:

For the Chelyabinsk trams map we’ve come up with these 3D terminals:

Why are they like this? The only reason is that we wanted this map to look special.

It is not enough for a good transport map to just answer the question “how to get there”. Since it is used everywhere, it is part of a city’s image. And if its design is powerful, it influences the city in other ways.

The Moscow’s Circle line in has inspired designers to create these beautiful wayfinding steles:

The round designations of the New York subway train routes are used in all the signage and have even made it to the dots above i in the pedestrian city maps (in the classic Helvetica these dots are rectangles):

And in London, the Tube Map has given birth to the graphical language of all the transport-related signage:

This graphical language is so iconic that you can even buy all sorts of souvenirs with its elements: t-shirts, umbrellas, shower curtains. This design has spread not only beyond the Tube, but beyond London. There are all sorts of maps done in this style:

A playful depiction of cities listed in Mark Ovenden’s “Transit Maps of the World” book

Strong graphic design of the transport systems makes them more attractive. This helps cities get rid of private cars. People spend more time outside, interact with each other. This gives small businesses a boost and makes cities more pleasant to live in.

Most web pages don’t load pleasantly. Loading takes time, images and other elements appear in a random order. Content jumps when new elements load above it. Some things are unreadable before a font or a background is loaded. We are used to this.

Desktop apps are different: an app’s user interface would appear only after it’s loaded. The apps that are slow to load show splash screens.

The desktop approach looks more polished. But on the web, we can start reading and even using a page before it’s fully loaded.

How can we take the best of the two worlds? We can gradually show a page, but make sure it looks fine at every step of this progressive loading. And we’ll try to minimise the jumping. I call this “coordinated loading”.

Emerge is a JavaScript library that I’ve created to help add coordinated loading to your website. Normally you would need to manually write a lot of code to do this. But with Emerge, you just specify the desired behaviour with HTML attributes. Let’s see how you can use it on your website.

Prepare: provide boxes for images and other external objects

Before we even start using Emerge, let’s fix one thing. Consider this code:

<img src="some.jpg" />
<p>Text</p>

Before the browser has loaded the image, it has no idea how much space to provide for it. So it first just shows the text as if there was no image. When it starts loading the image and figures out its size, the layout changes for the image to fit. So the text jumps down.

To avoid the jumping, specify all images sizes:

<img src="image.png" width="200" height="300" />
<p>Text</p>

Here’s how you can do this with PHP (5.4 or later):

<img src="image.png" <?= getimagesize ('image.png')['attribute'] ?> />
<p>Text</p>

But what if you want an image to be flexible, i.e. occupy 100% of the container width?

<img src="photo.jpg" width="100%" />

In this case, to avoid the jumping, you’ll need a container with fixed proportions. Let’s say you have a 3:2 photo. Here’s a way to do it:

<div style="position: relative; padding-bottom: 66.67%">
<img style="position: absolute" src="photo.jpg" width="100%" />
</div>

Paddings’ percentages are always percentages of width, even for vertical padding. So the div will have 3:2 proportions even before the photo is loaded. PHP code:

<?php $size = getimagesize ('photo.jpg'); ?>
<div style="position: relative; padding-bottom:
	<?=round (100*$size['height']/$size['width'], 2) ?>%">
<img style="position: absolute" src="photo.jpg" width="100%" />
</div>

The same can be done with videos.

Figure out which elements of the page make no sense unless they are fully loaded

OK, appearing images will no longer cause jumping. That’s a win already.

But with the Emerge script added to your page, you can do more. Use class “emerge” in an image to make it fade in (“emerge”) when loaded:

<img … class="emerge" />

What if your image has a caption which makes no sense unless the image is loaded? Actually, you can wrap elements in divs with class “emerge”:

<div class="emerge">
  <!-- Text, images and what not -->
</div>

You can put multiple images and videos into such div. The div will emerge only after all images and videos inside it are loaded.

Add a loading spinner for large elements

Some of your emerge elements may be quite large and take considerable time to load. The user may be confused by a large empty space on a page. So you can ask Emerge to display a loading indicator while such elements load:

<div class="emerge" data-spin="true">
  <!-- Show spinner while this is loading -->
</div>

Emerge has a built-in spinner with variable size, color and spin direction. If you want a custom spinner, Emerge supports them too. The documentation explains spinners in detail.

Make sure things appear in order

It may happen that an element which is lower on a page loads and emerges before the one which is above it. This may look strange and you may want to make sure the element load in a particular order.

Here is the easiest way to make an emerge element wait for the previous one to load:

<div class="emerge">
  <!-- Some content -->
</div>
<div class="emerge" data-continue="true">
  <!-- This will wait for the previous element to emerge first -->
</div>

The attribute data-continue means that even when this element’s images and videos are ready, it would emerge only after the previous one. You can chain many elements this way. If document order is not what you want, there is also a way to make one element wait for a particular other element by its id.

Select effect that make your site look best

By default, elements emerge by just fading in. But this is also adjustable.

Here are some examples of what you can do. You can make an element slide horizontally or vertically while it emerges:

<div class="emerge" data-effect="slide" data-up="20px">
  <!-- Stuff that will slide up 20px while emerging -->
</div>

Use data-down, data-left or data-right to change this. You can combine a horisontal and vertical parameters for diagonal motion.

Or you can make an element zoom-in:

<div class="emerge" data-effect="zoom">
  <!-- This will zoom in while emerging -->
</div>

Tune the original size with data-scale=“0.8” (or another value).

You can control an animation duration with data-duration (in ms).

There are other effects, which you can read about in the documentation. You can also provide an exact CSS for initial and final animation states.

Experiment and have fun

Since Emerge does not require you to write JavaScript, it’s very easy to experiment with. Find the way for your website to load in the best possible way.

But make sure you use the effects to improve the way your site loads, not make it too flashy and distracting. Don’t wrap the whole page into an emerging div: the user won’t see anything before everything is loaded, and your website will feel very slow.

The idea is to find elements that make sense only as a group, and make such groups appear in a single fade-in animation when ready. And then coordinate the order and motion for these groups.

In 2016 I’ve re-mixed my old progressive house track Cargo, and now it sounds much better:

Before:

On the 21st of April I played techno in Art. Lebedev Studio:

There are two mistakes: at 31:20 and at 1:20:11.

Playlist: