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SPEAKER: Welcome to "Now in Android,"
your ongoing guide to what's new and notable in the world
of Android development.
This week we're covering expanded Play target SDK
requirements, updates to Android attestation, more MAD Skills
architecture, along with new content
for TV, cars, large screens, graphics,
game development, and more.
Starting on November 1, 2022, apps
that don't target an API level within two years of the latest
major Android release version will not
be available on Google Play to new users
with devices running Android OS versions newer
than your app's target API level.
For example, as of this November,
existing apps need to target at least API level 30, Android 11,
to be available to new users on Android 12 and 13 devices.
Users who have previously installed your app from Google
Play will continue to be able to discover, reinstall, and use
your app, even if they move to a new Android device.
App updates still need to target an API level
within a year of the latest major Android release version,
and you can read more about it on the post.
Attestation for device integrity has
been mandated since Android 8.0 and is
used in a variety of services, such as SafetyNet.
Android 12 added the option of remote key provisioning
for device manufacturers.
And it will be mandated in Android 13.
So if you're leveraging attestation in your app,
watch out for a longer certificate chain structure,
a new root of trust, the deprecation of RSA attestation,
and short-lived certificates and attestation keys.
The blog post has more detail on how this all works.
The architecture MAD Skills series
has three new episodes covering our best practices
for architecting your app.
In the first of these episodes, Manuel
covers the different types of UI events,
along with best practices for handling them and more.
In the second of these episodes, Don covers the domain layer--
and it's an optional layer, which sits between the UI
and data layers--
explaining how it can simplify your app architecture,
making it easier to understand and test.
Then Emily from Uber shared a tip
around organizing modules in large projects,
because there's nothing more exciting
than well-organized code.
We've also created a new app excellence Android architecture
video that's not a part of MAD skills,
but it helps introduce our latest architecture guidelines.
For ongoing content, be sure to check out
the MAD Skills playlist on YouTube,
the articles on Medium, or the handy landing
page that points to all of it.
We've continued our series on integrating
with Android TV and Google TV with two new episodes.
In the first episode, Ian covers topics around accessibility,
such as making your app ready for TalkBack,
best practices for contrast and text size,
and how to deal with complex scenarios,
such as custom views.
In the second episode, Thomas discusses
how you can monetize your Android TV
app using Google Play billing.
It gives an overview of the billing commerce stack,
how to create in-app products and subscriptions in the Play
Console, how to use the billing client to launch the purchase
flow, and more.
Android for Cars has introduced media recommendations powered
by Google Assistant, a progress bar for long-form content,
and per-item content styles to allow
browsable and playable items to be individually assigned
to a list or grid.
Head on over to the developer documentation
to learn about all these changes.
The Google Play Academy released three new courses.
The first two, Go Global Japan and Go Global Southeast Asia,
cover how to make your app more appealing,
how to market and grow your business,
and how to monetize in those regions.
While the third course, Design for All Users,
covers how to design user-friendly apps,
create a compelling first-time user experience,
and improve the quality of your app
all while improving accessibility.
Now for our game devs, we covered
how to help you monitor your game stability using
Android Vitals on Google Play Console,
how to best optimize your game to improve your customer
engagement during the month of Ramadan,
and announced that the Indie Games Accelerator and Indie
Games Festival 2022 from Google Play
is coming soon, offering a way to get
notified when submissions open.
Manuel wrote about how and why we've migrated our architecture
blueprints to Jetpack Compose and some issues
we faced in doing so.
Pietro wrote about how to enable split screen use cases using
the Android 7.0 FLAG_ACTIVITY_LAUNCH_ADJACENT
flag to open your activity in a new adjacent window on Android
12L and some supported Android 11 devices.
In AndroidX, AppCompatResources version 1.5.0, alpha 1,
contains a bunch of bug fixes--
updated nullability to match Android 13
DP2 and a few small compatibility
features involving TextView, AppCompatDialog, SearchView,
and SwitchCompat, while Navigation version 2.42
has been released with all new bug fixes backported
from the 2.5 alpha releases.
In the "Android Developers Backstage" podcast,
Tor, Chet, and Romain chatted with Derek and Brian
from the Skia team about Skia, which
is the graphics layer that backs the Android Canvas
APIs, pixel shaders, and the new AGSL API
from Android T that lets you provide
pixel shaders for advanced graphics effects.
If you're interested in graphics technology,
this is the episode for you.
And if you're not interested, why not?
So that's it for this time with expanding the Play target
SDK requirements, Android attestation
and remote provisioning, more MAD Skills architecture, TV
and large screens, cars, Google Play Academy, graphics,
game development, and AndroidX releases.
Come back here soon for the next update from the Android
developer universe.
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