Mishaal Rahman Profile picture
May 10 11 tweets 5 min read Twitter logo Read on Twitter
Google is showing some love for Wear OS at #GoogleIO 2023. Here’s a summary of what they announced, including the new Wear OS 4 Developer Preview based on Android 13 👀! Image
Do you like watch faces? It’s the thing you stare at/interact with the most, so it’s no surprise they get a lot of attention. Samsung and Google have teamed up to announce the Watch Face Format: a new way to build watch faces for Wear OS. Image
According to Google, the Watch Face Format is a declarative XML format to design the appearance and behavior of watch faces. There won’t be any executable code involved in making a watch face, and no code will be embedded in the watch face APK.
Wear OS takes care of rendering the watch face so you don’t have to worry about optimizing your code for battery performance. Watch faces built with Watch Face Format are easier to maintain than ones built with the Jetpack Watch Face library.
The reason is that you won’t need to update your watch face to take advantage of future platform optimizations or bug fixes. Also, you don’t need to build your own watch face editor — it’s included as part of Wear OS 4 itself. Image
You can build and publish watch faces in the Watch Face Format starting today in preparation for upcoming Wear OS 4 watches. You can create analog and digital watch faces, watch faces with complications, customizable watch faces, and more. ImageImageImageImage
You can build watch faces directly in the new Watch Face Format or you can integrate it into your creation tools. Samsung, for example, released a new version of Watch Face Studio that lets you build watch faces in Watch Face Format without writing XML directly. Image
If you use Samsung’s Watch Face Studio to build a watch face, they’ll use the Watch Face Format by default when they’re run on a Wear OS 4 watch. Otherwise, they’ll run as a traditional watch face when run on a Wear OS 3 watch.
Wear OS 4 based on Android 13 will launch in the fall but can be tested out right now through the Wear OS 4 emulator, available through Android Studio.
Wear OS 4 based on Android 13 will bring backup and restore support (finally!), general performance and battery improvements, and permissions transfer for apps on your phone.
Links!

Watch Face Format documentation: developer.android.com/training/weara…

Watch Face Studio: developer.samsung.com/watch-face-stu…

Google Play publication guidance: support.google.com/googleplay/and…

Design guidelines: developer.android.com/design/ui/wear…

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More from @MishaalRahman

May 10
Google has announced that in Android 14, Health Connect "will be a core part of Android and available on all Android mobile devices." As I previously reported, this is because Health Connect is being shipped as part of a new, mandatory Project Mainline module. Image
Health Connect in Android 14 will introduce a new exercise routes feature to let users share maps of their workouts and improvements to menstrual cycle logging. And because it's a new Mainline module, it can be updated through Google Play System Updates.
Here's a screenshot of Health Connect integrated into Privacy settings. Image
Read 4 tweets
May 10
Google highlighted some major improvements to Jetpack Compose at #GoogleIO 2023. Here’s a summary of some of the highlights: Image
In the latest alpha release, Google says they’re seeing an average 22% performance gain for Text and TextField after migrating modifiers to a new and more efficient system. To take advantage of this, update your Compose version.
Compose now also supports the latest emoji version and new text features like outlining text, hyphenation, and line breaking behavior configuration.
Read 12 tweets
May 10
What’s new in Android Studio? A lot of things, some of which make use of generative AI to improve your workflow. Here’s what got announced at #GoogleIO 🧵 Image
Android Studio Hedgehog (the latest Canary version, and no, its logo isn’t Sonic) adds a new AI-powered conversational feature called Studio Bot, better tools to develop for multiple form factors, and new insights, debugging, and testing solutions.
Studio Bot is an AI-powered conversational experience that leverages Codey, Google’s foundation model for coding, to help you generate code for your app. You can also ask it questions about Android development or to help you fix errors in your code. Image
Read 15 tweets
May 10
At this year’s #GoogleIO, Google is announcing a bevy of new features for Google Play, including many that leverage generative AI to make it easier to market your app. Here’s a summary of what they announced 🧵: Image
A new AI tool will help you get started with making a store listing for your app. Just enter a few prompts like audience and key theme, and Google Play’s AI helper will generate a draft you can edit, discard, or use. This is currently only available in English.
Google Play will show review summaries created by Google’s generative AI technology. These summaries — starting with English but expanding later this year — will help users quickly learn about your app from what other users have been saying about it. Image
Read 19 tweets
May 10
Here’s what’s new with Android for Cars (Android Auto and Android Automotive OS), as announced at #GoogleIO 2023. The biggest announcement IMO is Android Automotive OS 14 based on Android 14 and the new multi-screen feature it’ll bring 👀 Image
Before I get ahead of myself, though, let’s recap Google’s announcements, starting with why you should care. Google expects the # of cars running Android Automotive OS with Google built-in to nearly double by the end of 2023.
Google’s only counting cars whose makers have licensed Google apps (hence “Google built-in”), so there’ll be even more cars running Android Automotive on the streets as some makers opt not to license Google Automotive Services (GAS).
Read 11 tweets
May 10
The #GoogleIO keynote has kicked off with an appearance from Sundar! In this thread I'll talk about anything new Google announces that's directly related to Android. 👇 Image
Immersive View in Google Maps for Android is getting a major revamp! You'll be able to see an immersive view of your routes and any relevant weather info.

Coming to 15 cities by the end of the year. Image
Google Photos is getting a new AI-powered Magic Editor feature! This is rolling out later this year.
Read 41 tweets

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