Technical Talks
Modern Android Development
Custom Layouts and Graphics in Compose
Jetpack Compose offers a variety of out-of-the-box solutions to quickly and easily build screens from scratch. But what happens when you need to go a step beyond and go fully custom? In this talk, you’ll learn how to create complex designs using a powerful combination of custom Compose Layouts and Graphics. We will cover things like laying out a custom graph, Compose drawing operations, and animations through a more hands on approach by building an intricate Sleep Tracker sample app in just 20 minutes.
Compose Modifiers Deep Dive
A deep dive into the history of Modifiers and the constraints of APIs. As well as the problems they are meant to solve leading up to a major overhaul in implementation in 1.3 and the addition of several lower level, but powerful, experimental APIs that we will be migrating to over the course of the next few releases. This talk will go into the why’s and how’s of this migration, how it impacts developers, and the performance impact it will have for end users.
State Holders and State Production in the UI Layer
The UI layer displays application data on the screen. But how is it done exactly? In this talk, we'll dive deep into the UI state production pipeline and state holders that manage UI complexity. As well as, get to know the differences between UI and business logic, a ViewModel and a plain state holder class, state and events, and more! What is all that, when to use which, and how to do it.
Making Apps Blazing Fast with Baseline Profiles
Baseline Profiles are a new way to dramatically improve app startup and runtime performance of apps and libraries. In this session we will share how to create a Baseline Profile and verify its effectiveness. You will also discover how the Android Runtime improves app performance, when a Baseline Profile is provided on various Android platform versions.
State of the Art of Compose Tooling
In this talk, we will walk you through the state of art of Compose Tooling in Android Studio by showing how to incorporate these tools into your development workflow.
You’ll learn to design and validate your UI with Compose Preview, accelerate your development workflow with Live Edit, and write code faster with Compose editing features. We’ll also show you how to analyze your layout, understand recompositions with the Layout Inspector, and pinpoint performance issues in your code.
After this talk, you will be ready to leverage these tools to build beautiful, performant, and adaptive Compose UI.
What's New in Android Build
In this talk, we would like to share what is new in Android Gradle Plugin (AGP), and how the new APIs and features can help you with Build productivity (maintenance and speed).
From Views to Compose: Where Can I Start?
Using Jetpack Compose doesn’t mean you need to rebuild your app from scratch, instead, you can take an incremental approach to migrating. In this talk, you will learn how to start introducing Compose into your codebase and how to gradually migrate existing screens. After this talk, you’ll have a solid foundation on how to approach converting your app to Compose.
Where to Hoist that State in Compose?
In this talk, you'll learn how and where to hoist state in Jetpack Compose. When should state be hoisted? Should that be in a composable function, plain state holder class, or in a ViewModel? In this session, we'll explore the different possibilities using real-world examples.
Material You in Compose Apps
The Material 3 Jetpack Compose library will be stable at ADS! Learn about new and updated theming and components, and get started using the library in your production apps. This talk also covers Material You dynamic color and migrating from Material 2. Come see why adopting Jetpack Compose now makes apps feel fresh and helps stay in sync with the evolution of the Android OS visual language and aesthetic.
5 Ways Compose Improves UI Testing
If you need another excuse to migrate your app to Compose, testing composables is easier, faster and more reliable than testing Views. In this talk, we'll look at five ways testing has improved thanks to how Compose was designed.
Type Safe, Multi-Module Best Practices with Navigation Compose
As your app grows in size and complexity, following these best practices for using Navigation Compose will set you up for expanding your navigation graph across multiple modules in a way that maintains type safety across all navigation calls. This talk will also explain how to separate Kotlin Multiplatform ready screens from Navigation code and how to bring your Navigation code back together after splitting it across multiple modules.
Practical Room Migrations
Database migrations may seem like an extreme sport at times - if you agree, this is the talk for you! In this talk, we will cover auto migrations, how to migrate a pre-populated database, how to pre and post process data for migrations, and how to handle foreign keys & views during a migration. With these new skills, migrations won’t feel like skydiving with a parachute anymore - but will perhaps, feel like skydiving with a Jetpack!
Test at Scale with Gradle Managed Devices
Gradle Managed Devices (GMD) makes it easy to leverage virtual devices for scalable, fully-managed testing, with test caching, sharding, and lifecycle management built in. We’re now adding support for both physical and virtual devices running in Firebase Test Lab to bring the benefits of GMDs to Google’s cloud testing solution for Android.
5 Android Studio Features You Don't Want to Miss
By now everyone has probably seen Jetpack Compose tools, Live Edit, and other high profile features of Android Studio in action. That's why in this talk we'll show you 5 upcoming features and improvements in the IDE that are perhaps not as easily noticed, but have a chance to greatly improve your everyday development workflows.
More Performance Tips for Jetpack Compose
A follow up to the Common Performance Gotchas I/O in Jetpack Compose talk. We will go further into the details of why deferring reads of Compose state works, learn about stability and how Compose infers it, have a look at a new API for reportFullyDrawn, and more.
Building a Scalable, Modularized, Testable App From Scratch
If you're building an app from scratch or looking to update your app to follow modern Android development best practices, this talk will give you a high-level overview of all the pieces you need, and how they fit together using a real-world example: the Now in Android app.
This talk will also explain how we built one of the app's features and the decisions behind its design. We'll cover the app's testable, modular architecture and talk about how we built a set of reusable UI elements using Jetpack Compose and Material3.
Reimagining Designer-Developer Handoff: Introducing Relay
In this lightning talk we’ll introduce you to Relay, available now in open alpha. Relay is a new process that allows teams to create UI in Figma and generate high-fidelity Compose UI components. Relay puts structured component data at the center of the collaboration between designer and developer, resulting in instant UI implementation and rapid iteration.