Rebecca Franks Android Engineer & GDE @riggaroo What’s new in Android Studio?

Android Studio 4.0

Android Studio 4.0 Treats • Motion Editor • Live Layout Inspector • Multi preview of Layouts • Java 8 library desugaring • Gradle build analyser

Motion Editor UI Tool for editing & previewing Motion Scene Files from MotionLayout bit.ly/motion-editor

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Resources bit.ly/motion-editor < video bit.ly/motion-layout < blog

Live Layout Inspector - Similar to Chrome Developer Tools - Real time information whilst running on device - 3D Preview - Property resolution - Why is this colour blue?

Layout Validation ✅ - Help makes your layouts by showing you different previews - Preview different font sizes, common types of colour blindness, languages etc

Java 8 library desugaring AS now includes support for using a number of Java 8 language APIs without requiring a minimum API level for your app. In AS 4.0, the desugaring engine extended to be able to desugar Java language APIs: • Sequential streams (java.util.stream) • A subset of java.time • java.util.function • Recent additions to java.util.{Map,Collection,Comparator} • Optionals java.util.Optional • Additional methods to AtomicInteger etc • ConcurrentHashMap

Java 8 library desugaring android { defaultConfig { // Required when setting minSdkVersion to 20 or lower multiDexEnabled true } compileOptions { // Flag to enable support for the new language APIs coreLibraryDesugaringEnabled true // Sets Java compatibility to Java 8 sourceCompatibility JavaVersion.VERSION_1_8 targetCompatibility JavaVersion.VERSION_1_8 } } dependencies { coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.0.4' }

Build Analyzer - Diagnose issues with your build process & provide valuable build info - Make sure you are using Android Gradle Plugin 4.0.0 (or higher)

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Android Studio 4.2 Preview

Android Studio 4.2 Treats • Database Inspector (4.1+) • New project template using Material Components (4.1+) • TensorFlow Lite Model Binding (4.1+) • Run Android Emulator inside AS (4.1+) • Jetpack Compose Previews + Run on device (4.2 Preview)

Database Inspector - Query, modify your app’s database in real time whilst its running.

Material Components in AS New Project template in Android Studio is now using the MaterialComponents theming

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TensorFlow Lite Model binding - ML Model binding makes it easier to import .tflite files and use them in your projects. - Android Studio generates easy to use classes to make use of it. https://www.tensorflow.org/lite/guide/codegen

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More TensorFlow Learning https://github.com/margaretmz/icon-classifier https://codelabs.developers.google.com/codelabs/recognize-flowers-with- tensorflow-on-android-beta/#0

Emulator inside Android Studio Preferences -> Emulator -> Launch in a tool window

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Jetpack Compose Previews - Support for Interactive previews (click buttons to see how state changes) - Deploy to device - deploy a snippet of code to your device, helps make testing and development easier

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Resources https://developer.android.com/studio

Rebecca Franks Android Engineer & GDE @riggaroo Thank you!