Google’s latest Compose release focuses on adaptability
The Android Developer Summit this year highlighted how the ecosystem is no longer limited to a single‑screen phone. With foldable devices such as the Samsung Galaxy Z Fold 5, large‑format tablets, wearables and even in‑car displays, developers need a UI toolkit that can fluidly reshape itself. Jetpack Compose – Google’s declarative UI framework that has already replaced the legacy View system for many apps – is getting a major upgrade with the upcoming Compose 1.13 stable.
Adaptive layouts built‑in: Grid and Flexbox
Until now, developers often resorted to third‑party libraries or custom view groups to create responsive multi‑pane interfaces. Compose 1.13 ships native Grid and Flexbox composables that understand window size classes, fold positions and orientation changes. In practice, this means an app can automatically switch from a single‑column list on a phone to a two‑column master‑detail view on a tablet or a split‑screen layout on a foldable without writing separate XML files.
For UK shoppers, this translates into smoother experiences on the latest devices that are becoming common on carrier contracts – think of the Samsung Galaxy Z Flip 5 or the upcoming Motorola Razr 2025. Apps that adopt the new layout primitives will resize gracefully, keeping navigation intuitive whether the screen is folded or unfolded.
Visual upgrades that stay battery‑friendly
Compose 1.13 also introduces mesh gradients and progressive blur effects. These were previously only available through low‑level Canvas APIs or heavy third‑party shaders, which could drain battery and cause frame‑rate hiccups. Google’s implementation leverages the GPU efficiently, so developers can add modern, glass‑like UI flourishes without sacrificing the smooth 60 fps experience that Android users expect.
A short video from the summit – Elevate your apps with the latest graphics features in Jetpack Compose and Android – demonstrates a photo‑gallery app that applies a subtle blur to background images while keeping foreground content crisp, all while staying within the device’s power budget.
Text input gets a serious overhaul
One of the most common pain points on Android has been the interaction between the on‑screen keyboard (IME) and Compose’s TextField. The new BasicTextField is now built on a buffer‑driven architecture with a dedicated TextFieldState. This redesign eliminates race conditions that caused characters to disappear or appear out of order when the keyboard changed language or layout. It also opens the door to rich‑text editing, allowing developers to embed formatted spans (bold, italic, links) directly inside the composable.
Developers can watch the Building reliable text editing experiences in Compose session for a deep dive, but the takeaway for end users is simple: fewer glitches when typing messages, filling forms or using in‑app search.
Jetpack AppState – moving Compose state out of the UI layer
Perhaps the most strategic addition is Jetpack AppState, announced in alpha. Until now, Compose’s snapshot system lived almost exclusively inside UI composables. AppState lifts that reactivity into the broader app architecture, offering two key pieces:
- Transform – a Kotlin‑friendly way to derive reactive values from
State,Flowor other observable sources, with automatic read tracking. - StateStore – a keyed container that can share observable state across activities, background services, widgets and even App Functions, optionally persisting data via
DataStore.
In lay terms, an app can keep a single source of truth for things like user preferences, cart contents or authentication tokens, and every screen – whether on a phone, a foldable or a desktop‑class Android device – will stay in sync automatically. The Taking Compose State Beyond the UI with Jetpack AppState video shows a shopping app where the cart badge updates instantly across the main UI, a home‑screen widget and a background sync service.
Navigation 3 and type‑safe deep links
Compose’s companion library Jetpack Navigation also received a major bump with Navigation 3 (version 1.2). The new API adds type‑safe deep linking using Kotlin Serialization, meaning incoming URLs or intents are parsed directly into strongly‑typed navigation arguments. Developers can now declare a navigation route like product/{productId} and have the framework automatically convert the productId segment into a Long or a custom data class.
The benefit for users is a more predictable back‑stack behaviour, especially when an app is launched from a web link or a notification on a large screen. The Building type‑safe deep links with Jetpack Navigation 3 session walks through a real‑world example of a news app that opens directly to an article, even when the app is already running in a split‑screen mode.
Input handling across touch, mouse and keyboard
Compose’s layered input system now embraces non‑touch interactions out of the box. Trackpads, mice, and physical buttons generate the same PointerInput events as finger taps, allowing developers to write a single input handler that works on a Chromebook, a foldable with a detachable keyboard, or a car infotainment system.
The Scaling input interactions beyond the touchscreen with Jetpack Compose video demonstrates hover states and right‑click context menus on a tablet‑sized device, showing how an app can feel at home on a laptop‑style Android device.
From phones to desktop‑class Android (Googlebook)
Google also used the summit to showcase early partners building desktop‑class experiences on Android, branded as Googlebook. Notability and Logitech presented how they adapted pointer interactions, external keyboards and multi‑window workflows for Android tablets that behave like a traditional PC. For developers, this signals that the Compose toolkit is now ready for “big‑screen” Android, a segment that UK carriers are beginning to promote with 5G‑enabled tablets and convertible laptops.
New Android‑Studio‑powered “skills” for AI agents
In a nod to the growing role of generative AI, Google announced Android skills that can be invoked by AI agents such as Gemini inside Android Studio. The Adaptive skill can automatically transform a compact phone layout into a responsive multi‑pane design, adding foldable and desktop support, keyboard shortcuts and tooltips. There are also performance‑optimisation skills to help with XML‑to‑Compose migration and Ink handling.
While these skills are primarily developer‑focused, they promise faster delivery of polished, adaptive apps – meaning UK consumers may see updates roll out more quickly, with fewer bugs on emerging form factors.
What this means for Android shoppers in the UK
- Smoother UI on foldables and tablets – Apps built with the new Grid/Flexbox primitives will look native on devices that are increasingly part of carrier bundles.
- Better battery life despite richer graphics – Mesh gradients and progressive blur are now GPU‑optimised, so you won’t notice a drain when using visually‑rich apps.
- Fewer typing hiccups – The revamped text field should reduce the occasional “ghost character” issue that some users still report on older Android keyboards.
- Consistent experience across devices – With AppState and Navigation 3, the same app can keep its state and navigation logic intact whether you’re on a phone, a foldable, a Chromebook or an in‑car display.
- Future‑proofing for desktop‑class Android – As Google pushes Android onto larger screens, developers now have a clear path to create truly desktop‑grade experiences.
For anyone hunting a new contract phone or tablet, these updates are a reminder that the Android ecosystem is evolving to support a wider range of hardware. When you see an app that feels “just right” on both your pocket‑sized handset and your larger foldable, chances are the developer is already leveraging the Compose 1.13 toolset.
All information is based on announcements made at the Android Developer Summit and the official Android Developers blog (Rebecca Gutteridge, Developer Relations Manager).
