Making Airbnb’s Android application extra obtainable|by Julia Fu|The Airbnb Technology Blog Site|Jan, 2023 

By: Julia Fu, Peter Elliott

At Airbnb, we have actually been knowingly making as well as developing items to be just as useful by all customers. Making our mobile applications as well as sites extra obtainable not just straightens with our firm’s objective of developing a globe where individuals can belong anywhere, yet likewise sustains the civil liberties of individuals with impairments as well as follow the legislation.

In this write-up, we highlight a few of the initiatives we have actually made to make the application extra obtainable, as an example, classifying UI aspects, organizing associated web content, sustaining big typeface range, supplying heading as well as web page names. The Airbnb application is just one of one of the most prominent traveling applications with countless customers as well as sustains numerous attributes. Making such a complicated application extra obtainable is a significant undertaking that we are continually dealing with.

At Airbnb, we adhere to market finest methods to make the Android application obtainable. You can locate all finest methods we adhere to from the main Android paperwork for system particular standards as well as the Internet Web Content Availability Standards as a market requirement if you are interested. Below we wish to highlight a couple of instances where we use the most effective methods:

Ideal Method: web content summaries

Every little thing will have exact web content summaries unless they ought to be neglected by assistive modern technology. In these instances, the share switch has a material summary that TalkBack checks out out loud. TalkBack misses your house symbol.

Ideal method: organizing

Aspects of an all-natural team can be introduced along with focusable containers for much better use as well as precision. Talkback checks out all detailing web content on the card with each other.

Ideal method: typeface range

UI will be useful when the individual enhances the system typeface range.

Default vs bigger typeface range:

Default typeface range on the. Bigger typeface range on the.

Scaling finest methods The Airbnb Android application is a huge application with numerous displays. If we required to include access code anywhere, it would certainly be not scalable as well as laborious. Our Layout Language System allows us to generally use these finest methods throughout item surface areas in an extremely reliable method. Every display is developed with a collection of recyclable UI parts. The modification uses to all the web pages with this element as component of the sight when we enhance the access for one element. This has a resilient favorable impact on our application’s access renovations. Below’s an instance: Take


as an instance. This UI element is made use of to interact the framework on the web page as well as team web content with each other. We note this element to be an ease of access heading in the element code so it comes in all displays which contain this element.

We bought automated access screening as well as linting to keep up every code dedicate, which develops a fast comments loophole for designers as well as encourages them to make the application obtainable at code composing time. The checks are quick, trusted, as well as range well with our fast-growing attributes in the Android application.

Automated screening

We established Espresso-based automated screening to look for access concerns. Coffee is a preferred screening collection for Android UI with integrated access checks. It sustains an extensive collection of access regulations as well as is simple to establish:

If access checks stop working, the examination outputs a mistake pile trace that designers can make use of to debug the concern. :

In this instance, designers can give a material summary to the photo sight to please access needs.

We likewise screenshot examination our parts with a bigger typeface dimension to make sure the actions is proper utilizing Happo.


Along with automated screening, we likewise allowed linting, consisting of Android Dust regulations for access as well as custom-made dust regulations developed with Ktlint.

Below is an instance of an Android access dust guideline:

Besides the integrated Android Dust, we likewise make use of Ktlint to develop custom-made dust regulations. When an individual browses to a brand-new display, we give a web page name for a display visitor to introduce. We make use of the complying with guideline to make certain that the web page name is local.

Dust regulations are uncomplicated to establish as well as give prompt comments, yet linting has constraints– it can just carry out fixed code evaluation.

Today, these automated checks run as component of CI (Constant Combination) look for every code dedicate. It will certainly be obstructed from being combined right into the main code branch if a pull demand does not pass the checks. We still make use of hand-operated screening to cover the locations that automated checks do not cover, such as the traversal order of UI aspects on a web page. Automated as well as hand-operated checks enhance each various other well.

Over the previous year, we have actually been incorporating Jetpack Make up right into our application. Google’s Access in Compose paperwork has actually been a terrific source to guarantee our Compose displays as well as parts stay obtainable. While there are some significant points missing out on that existed with Sights (e.g. emphasis order alteration), Compose is still a young collection as well as we expect future renovations. Below are a number of points worth stating regarding our Compose-specific access tooling:

Proactively motivate material summaries in the API Among our standards for UI parts is that web content summaries revealed using a feature criterion ought to not make use of a default worth. When a designer utilizes the element as they require to consider what worth to pass, this brings access to the top of mind. A void worth is still appropriate in instances where that UI component is trivial for access. Web page name statements When utilizing Sights as well as pieces, we make use of the View.setAccessibilityPaneTitle()

as well as View.announceForAccessibility() APIs when browsing to a brand-new display to introduce a detailed web page name to the individual. These APIs do not exist in Compose yet we wished to maintain the capability because it assists to give even more context regarding what the brand-new display display screens. Our present workaround collections specific semiotics on the display’s external composable:

We make use of the


residential or commercial property so adjustments can be introduced when the web content summary adjustments. This serves for web pages whose whole web content is figured out by a feedback from the web server. In this situation, TalkBack would certainly introduce “Material Loading” while the network demand is pending, adhered to by “Material Loaded” when it finishes, as well as ultimately the web page summary specified in the web server action. One disadvantage of this strategy is that it calls for the external container to be focusable, which calls for an added navigating activity to reach the web content.

Making our Android application extra obtainable has actually been an impactful trip. Improving application access includes complying with finest methods, including extensive enforcements, consistently gaining from errors, as well as placing in the job. Every one of these merit initiatives to make certain an application benefits all customers.

If you are delighted regarding developing extremely obtainable items as well as the structure to sustain them, look into a few of our associated employment opportunities:

Personnel Android Software Application Designer, Visitor

Elderly iphone Software program Designer, Framework

It is a significant undertaking to make a complicated application like the Airbnb Android application extra obtainable. This job would not be feasible without the massive initiatives from the electronic access group as well as the dense Android area at Airbnb. Every designer has actually added to making the attributes they possess obtainable. Making the Android application extra obtainable is a continuous initiative as well as it can not prosper without every one of them.(*) All item names, brand names, as well as logo designs are residential or commercial property of their corresponding proprietors. All item, solution as well as firm names made use of in this site are for recognition objectives just. Use these names, brand names, as well as logo designs does not indicate recommendation.(*) All reservations consisted of in this article are meant to show. Airbnb does not support or advertise these listings or any type of various other lodgings or experiences on the system.(*)