This sample demonstrates how to display PDF document on screen using the PdfRenderer introduced in Android 5.0 Lollipop.

• ContentResolver
• DocumentsContract
• PdfRenderer

• Android Storage
• Storage
• Kotlin

A proof of concept file manager utilizing the ACTION_OPEN_DOCUMENT_TREE intent introduced with Android 5.0, API level 21.

• ContentResolver
• DocumentsContract

• Android Storage
• Storage
• Kotlin

• app
• localstorage

• Kotlin

These samples showcase different architectural approaches to developing Android apps. In its different branches you'll find the same app (a TODO app) implemented with small differences. In this branch you'll find: User Interface built with Jetpack

• Android Architecture UI Layer
• Android Architecture
• Jetpack Compose Navigation
• Android UI state production
• Android Testing
• Jetpack Compose Architecture and State
• Android Architecture UI Events
• Android UI state holders
• Android Architecture Data Layer
• Jetpack Compose Testing
• Kotlin

Features This sample showcases the behavior of a bottom navigation view following the Principles of Navigation. Fixed start destination Navigation state should be represented via a stack of destinations The Up button never exits your app Up and Back

• Architecture
• Android Architecture
• Kotlin

A sample that demonstrates to use registered fingerprints to authenticate the user in your app

• FingerprintManager
• AuthenticationCallback
• CryptoObject
• KeyGenParameterSpec
• KeyStore
• Cipher
• KeyGenerator

• Security
• Android Security and Privacy
• Kotlin

Sample for the Androidx Biometrics Library

• BiometricManager
• BiometricPrompt

• Security
• Android Security and Privacy
• Kotlin

This sample demonstrates using the Camera2 API to capture a JPEG, DEPTH or RAW frame. Check the source code to see a simple example of how to display the camera preview and capture a still image using the default configuration with the selected pixel

• DngCreator

• Android Camera & Media
• Camera
• Kotlin

This sample captures high-speed video via the Camera2 API including displaying a camera preview and capturing a high-speed (slow motion) video using repeating burst capture requests.

• camera2
• CameraConstrainedHighSpeedCaptureSession

• Android Camera & Media
• Camera
• Kotlin

This sample captures video record via the Camera2 API including displaying a camera preview and capturing a high-speed (slow motion) video using repeating capture requests.

• camera2
• MediaRecorder

• Android Camera & Media
• Camera
• Kotlin

This sample demonstrates how to use CardView introduced in the support library in Android 5.0.

• Android UI Views
• Kotlin

This sample showcases the following features of the Data Binding library with an app that shows a workout timer. Two-way Data Binding Alternatives to Two-way Data Binding Binding adapters with multiple parameters Animations with Binding

• Android Architecture
• Kotlin

This sample showcases the following features of the Data Binding library: Layout variables and expressions Observability through Observable Fields, LiveData and Observable classes Binding Adapters, Binding Methods and Binding Converters Seamless

• Android Architecture
• Kotlin

This sample demonstrates how to use the Downloadable Fonts feature introduced in Android O. Downloadable Fonts is a feature that allows apps to request a certain font from a provider instead of bundling it or downloading it themselves. This means,

• FontRequest
• FontRequest
• FontsContractCompat
• FontsContractCompat

• Android UI Views
• User Interface
• Kotlin

⚠️⚠️⚠️ Caution: the androidx.emoji:emoji library is deprecated in favor of androidx.emoji2:emoji2, which provides integration into androidx.appcompat. To support modern emoji and simplify backward-compatibility with lower versions of Android, it's

• EmojiCompat
• BundledEmojiCompatConfig
• FontRequestEmojiCompatConfig
• FontRequest
• EmojiAppCompatTextView
• EmojiAppCompatEditText
• EmojiAppCompatButton
• EmojiTextViewHelper

• Android UI Views
• User Interface
• Kotlin

"Immersive mode" is intended for apps in which users will be heavily interacting with the screen. With this API, apps can hide the status bar, the navigation bar, or both. When users need to bring back the system bars, they swipe from any edge where

• Android UI Views
• User Interface
• Kotlin

This sample app demonstrates how to use the Cookie API. It contains storage and retrieval of values using both, the Android Framework API and the InstantApps Play Services API. Usage This API is available to both, the Instant App as well as the

• Android Building
• Kotlin

This sample app demonstrates how to use the Install API. The API triggers Intent to install the app on device. The call also accepts Intent, which is triggered after the installation is complete. If an app wants to utilize this API, it needs an

• Android Building
• Kotlin

This sample app demonstrates how to use the Storage API. It is relevant to devices running on Android versions lower than API level 26. On devices running on API level 26 or higher, the Android framework takes care of migrating user data from instant

• Android Building
• Kotlin

This sample demonstrates how to use Android's MediaStore to locate and display the users images in a RecyclerView.

• ContentResolver
• MediaStore

• Android Storage
• Storage
• Kotlin

This sample demonstrates how to display PDF document on screen using the PdfRenderer introduced in Android 5.0 Lollipop.

• PdfRenderer

• Graphics
• Android Graphics
• Kotlin

This sample demonstrates basic usage of Picture-in-Picture mode for handheld devices. The sample plays a video. The video keeps on playing when the app is turned in to Picture-in-Picture mode. On Picture-in-Picture screen, the app shows an action

• PictureInPictureParams
• RemoteAction
• PendingIntent
• MediaSessionCompat

• Android Camera & Media
• Media
• Kotlin

This repository contains a collection of samples that demonstrate the use of different Android OS platform APIs. The samples are organized into folders by topic, and each folder contains a README file that provides more information about the samples

• Jetpack Compose Accessibility
• Connectivity
• Camera
• User Interface
• Permissions
• Kotlin

This application implements a RecyclerView in Kotlin with ListAdapter, onClickListener and Headers. If you are looking for a simpler sample, look at the RecyclerViewSimple sample in the directory.

• RecyclerView
• LayoutManager
• ViewHolder

• Android UI Views
• Kotlin

This sample shows how to implement a media app that allows playback of video from local storage (assets folder in the APK) or remote sources over HTTP(S). It supports playlists, so that multiple videos can be strung together to play one after the

• MediaSessionCompat
• PictureInPictureParams
• SimpleExoPlayer
• PlayerView

• Media
• Android Camera & Media
• Kotlin

Demonstrates connecting to the Car API and listening for gear change events. Works on Android P (API 28) and above. Introduction This app allows a user to see the current gear on the main infotainment screen (IVI). The app connects to the Car API and

• car
• Car
• CarPropertyManager

• Android Devices
• Kotlin

This template is compatible with the latest stable version of Android Studio.

• Android Architecture UI Layer
• Android Architecture Data Layer
• Android Testing
• Android Architecture
• Kotlin

This template is compatible with the latest stable version of Android Studio.

• Android Architecture UI Layer
• Android Architecture Data Layer
• Android Testing
• Android Architecture
• Kotlin

Demonstrates use of the Awareness APIs to intelligently react to the current situation of the user. Introduction The Awareness API exposes five different context types, which include user activity, and nearby beacons. These types enable your app to

• DetectedActivityResponse
• ActivityRecognitionResult

• Sensors
• Kotlin

If you are new to unit testing on Android, try this sample first. This project uses the Gradle build system and the Android gradle plugin support for unit testing. You can either benefit from IDEs integration such as Android studio or run the tests

• Android Architecture
• Kotlin

Demonstrates a simple "Hello, World" starter project for using Compose with Wear OS.

• setContent
• background
• Arrangement
• Column
• fillMaxSize
• fillMaxWidth
• Composable
• Modifier
• stringResource
• TextAlign
• Preview
• ExperimentalWearMaterialApi
• MaterialTheme
• Text

• Android Wearables
• Kotlin

This Android sample app demonstrates how to use state-of-the-art generative AI models (like Gemini) to build AI-powered features and applications. To try out this sample app, you need to use latest stable version of Android Studio. However, if you

• Composable

• Jetpack Compose Layouts
• Kotlin

Jetcaster is a sample podcast app, built with Jetpack Compose. The goal of the sample is to showcase building with Compose across multiple form factors (mobile, TV, and Wear) and full featured architecture. To try out this sample app, use the latest

• Composable

• Android Architecture UI Layer
• Jetpack Compose Design Systems
• Jetpack Compose Animation
• Android Compose
• Kotlin

Jetchat is a sample chat app built with Jetpack Compose. To try out this sample app, use the latest stable version of Android Studio. You can clone this repository or import the project from Android Studio following the steps here. This sample

• Composable

• Android Architecture UI Layer
• Jetpack Compose Text
• Android UI state production
• Jetpack Compose Design Systems
• Jetpack Compose Architecture and State
• Jetpack Compose Animation
• Android Architecture UI Events
• Android Compose
• Jetpack Compose Testing
• Kotlin

JetLagged is a sample sleep tracking app built with Jetpack Compose. To try out this sample app, use the latest stable version of Android Studio. You can clone this repository or import the project from Android Studio following the steps

• Composable

• Jetpack Compose Layouts
• Jetpack Compose Animation
• Jetpack Compose Graphics
• Kotlin

Jetnews is a sample news reading app, built with Jetpack Compose. The goal of the sample is to showcase the current UI capabilities of Compose. To try out this sample app, use the latest stable version of Android Studio. You can clone this repository

• Composable

• Android Architecture UI Layer
• Jetpack Compose Navigation
• Android UI state production
• Jetpack Compose Design Systems
• Jetpack Compose Layouts
• Jetpack Compose Architecture and State
• Android Compose
• Jetpack Compose Testing
• Kotlin

Jetsnack is a sample snack ordering app built with Jetpack Compose. To try out this sample app, use the latest stable version of Android Studio. You can clone this repository or import the project from Android Studio following the steps here. This

• Composable

• Jetpack Compose Design Systems
• Jetpack Compose Layouts
• Jetpack Compose Animation
• Android Compose
• Kotlin

Demonstrates retrieving location updates in the background. Introduction This app allows a user to receive location updates in the background via a PendingIntent. If you are just interested in seeing the code that subscribes to a location request,

• FusedLocationProviderClient
• LocationRequest
• LocationServices

• Sensors
• Kotlin

Learn how this app was designed and built in the design case study, architecture learning journey and modularization learning journey. This is the repository for the Now in Android app. It is a work in progress 🚧. Now in Android is a fully functional

• Jetpack Compose Architecture and State
• Android Architecture Domain Layer
• Jetpack Compose Accessibility
• Android Architecture Data Layer
• Android Architecture UI Layer
• Jetpack Compose Animation
• Jetpack Compose Testing
• Android UI state production
• Android Architecture
• Jetpack Compose Navigation
• Android UI state holders
• Android Testing
• Jetpack Compose Design Systems
• Kotlin

This is an API sample to showcase how to use Room, with RxJava's Flowable objects in Kotlin.

• Architecture
• Android Architecture
• Kotlin

Demonstrates use of the Sleep API to recognize a user's sleep activity. Introduction Demonstrates use of the Sleep API to recognize a user's current sleep activity. Users can request activity updates by pressing the "Subscribe to Sleep Data" button,

• SleepSegmentEvent
• SleepClassifyEvent
• SleepSegmentRequest
• ActivityRecognition

• Sensors
• Kotlin

This example performs real-time image classification on live camera frames. It demonstrates loading a model using Tensorflow Lite in Google Play Services and using it to classify the camera feed. It performs the following operations: Initializes

• TfLite

• Kotlin
• Java

Note: Trackr uses version 7 of Gradle, which currently requires Android Studio Beta or Canary. Trackr is a sample task management app used to explore common UI patterns from the perspective of supporting accessibility. Trackr is currently under

• ViewCompat
• AccessibilityManager

• Kotlin

This sample shows how to use ViewPager2 with either Views or Fragments as pages, how to perform page transformations, how to link ViewPager2 to a TabLayout, and demonstrates handling modifications of an underlying page adapter collection. ViewPager2

• FragmentStateAdapter
• FragmentViewHolder
• StatefulAdapter
• ViewPager2

• Android UI Views
• Kotlin

Android AutofillFramework Sample (Kotlin) This sample demonstrates the use of the Autofill Framework. It includes implementations of client Activities with views that should be autofilled, and a Service that can provide autofill data to client

• View
• AutoFillService
• AutoFillManager

• Android UI Views
• Kotlin

Demonstrates watch faces using the androidX libraries (Kotlin). [!IMPORTANT] As of July 10, 2024, watch faces must use the Watch Face Format (sample) in order to be installed on new watches that launch with Wear OS 5 pre-installed. Learn more about

• WatchFace
• WatchFaceService
• WatchFaceType
• WatchState
• ComplicationSlotsManager
• CanvasComplicationDrawable
• ComplicationDrawable
• CurrentUserStyleRepository
• UserStyle
• UserStyleSetting
• WatchFaceLayer

• Android Wearables
• Kotlin

Tiles provide easy access to the information and actions users need in order to get things done. With a simple swipe from the watch face, a user can find out the latest forecast or start a timer. This repository contains a sample tile built using the

• TileProviderService

• Android Wearables
• Kotlin