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. The source code for this app can be found at https://goo.gle/3XTxMIR This talk also explains 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. Speaker: Don Turner Chapters: 0:00 Introduction 1:12 Architecture overview 2:47 Data layer 5:03 UI layer overview 5:26 Creating a state holder 8:50 Creating a screen 11:34 Modularization 14:37 Testing 17:36 Creating an instrumented test 18:27 Material Design 20:03 Material component customization 20:43 Summary Watch more: Watch all the Android Dev Summit sessions → https://goo.gle/ADS-All Watch all the Modern Android Development track sessions → https://goo.gle/ADS-MAD Subscribe to Android Developers → https://goo.gle/AndroidDevs #Featured #AndroidDevSummit #JetpackCompose