Posted by , Android Toolkit UI Product Manager
It’s been almost a year since for the newest and boldest features of their apps. For instance, we've worked closely with the has been using Jetpack Compose across different parts of the app, and they are reaping the benefits, as "Compose makes it much easier to define our own components and to make their API contracts more explicit, flexible, and intuitive." The Airbnb team adopted Compose as well: "Jetpack Compose is a critical part of our technical strategy. The productivity gains are massive."
We're very glad to see that these teams, who have carefully evaluated Compose in large, complex production environments, are experiencing not just more fun and clarity in their UI development, but broader engineering benefits! And these are just a few examples, because over 100 of the top 1000 apps in the Play Store are now using Compose.
These close collaborations, and listening carefully to feedback from the broader Android community, are always at the heart of our development process and are key to advancing our , which includes a lot of features and improvements.
Text improvements
Font Padding
We’ve addressed
Multi-line Text with includeFontPadding set to true (left, current default) vs false (right) and lineHeightStyle.
Text(
text = myText,
style = TextStyle(
lineHeight = 2.5.em,
platformStyle = PlatformTextStyle(
includeFontPadding = false
),
lineHeightStyle = LineHeightStyle(
alignment = Alignment.Center,
trim = Trim.None
)
)
)
Downloadable Fonts
Compose 1.2 also introduces
The magnifier is shown when dragging a selection handle to help you see what’s under your finger. Compose 1.1.0 brought the magnifier to selection within text fields, and now Compose 1.2.0 supports magnifier in both text fields and and , that lets you implement your own custom lazy layouts. Learn more about these APIs in the I/O talk demonstrating this new functionality.
Window insets
The class. Read more about it in our documentation on , as part of the Material 3 set of libraries. You can read more about size classes in the .
Focus on performance
To help you understand and improve your app’s performance, we focused a lot on new performance tooling and guidance. With this, it becomes much easier to understand why and where your app might be lagging.
Starting from Android Studio Dolphin, you can inspect how often composables recompose using the Layout Inspector. Unexpectedly high numbers of recomposition can point you to a composable that could be optimized. In addition, Android Studio Electric Eel now includes a recomposition highlighter, a visual aid to see which composables recompose when. Read more about this new tooling in the
Layout Inspector showing recomposition count and recomposition highlighter.
Compose changes the way you write your UI at a fundamental level, so there are some best practices that you can adopt to make sure your app is performant. The newly released , the Compose team describe common performance mistakes and how to fix them.
Performance is an ongoing area of focus and we’re working hard on improving and extending tooling and guidance. In the meantime, we’d really appreciate your feedback on the work we’ve done so far. Please raise your bugs in the.
New tools
On top of improvements, there are also new tooling updates to help you use Compose more effectively.
Check out !
New and improved guidance
We’ve added and revamped a lot of the guidance on Compose:
- New on State in Compose
- New on Basic layouts in Compose
- New
- I/O talks
- For those who are new to programming, the and see how it will fit in your team and development process, so that you can experience all the benefits of improved velocity and developer productivity. Happy Composing!
↗ Original-Artikel auf android-developers.googleblog.com lesenVollständiger Original-BerichtAusführliche Details, Code-Beispiele & Hersteller-Stellungnahme auf android-developers.googleblog.com.
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