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

• ContentResolver
• DocumentsContract
• PdfRenderer

• Android のストレージ
• ストレージ
• 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 のストレージ
• ストレージ
• Kotlin

This sample shows how to use scene transitions from one Activity to another in Lollipop. Uses a combination of changeImageTransform and changeBounds to transition a grid of images to an Activity with a large image and detail text.

• Transition
• ActivityOptions

• Android UI ビュー
• Java

• 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 アーキテクチャの UI レイヤ
• Android アーキテクチャ
• Jetpack Compose の Navigation
• Android の UI 状態生成
• Android のテスト
• Jetpack Compose のアーキテクチャと状態
• Android アーキテクチャの UI イベント
• Android の UI 状態ホルダー
• Android アーキテクチャのデータレイヤ
• Jetpack Compose でのテスト
• 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

• アーキテクチャ
• Android アーキテクチャ
• Kotlin

This sample showcases the following Architecture Components: Room ViewModels LiveData

• アーキテクチャ
• Android アーキテクチャ
• Java

This sample showcases the following Architecture Components: Paging Room ViewModels LiveData

• アーキテクチャ
• Android アーキテクチャ
• Java

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 Activities.

• View
• AutoFillService
• AutoFillManager

• Android UI ビュー
• Java

This sample detects gestures on a view and logs them. In order to try this sample out, try dragging or tapping the text.

• GestureDetector
• MotionEvent

• Android UI ビュー
• Java

This sample shows how to use the MediaCoder to decode a video, use a TimeAnimator to sync the rendering commands with the system display frame rendering and finally render it to a TextureView.

• MediaCodec
• MediaExtractor
• TimeAnimator

• メディア
• Android カメラとメディア
• Java

This sample demonstrates the use of the MediaRouter API to display content on a secondary display. Use the "Media Route Action Item" in the ActionBar to select an output device. If your device supports Miracast wireless displays, you may need to

• Android カメラとメディア
• メディア
• Java

Sample demonstrates the use of MotionEvent properties to keep track of individual touches across multiple touch events.

• MotionEvent

• Android UI ビュー
• Java

This sample demonstrates using RenderScript to perform basic image manipulation. Specifically, it allows users to dynamically adjust the saturation for an image using a slider. A custom RenderScript kernel performs the saturation adjustment, running

• RenderScript
• Allocation

• Android NDK とゲーム
• Java

A basic app showing how to use the Transition framework introduced in KitKat. The app shows radioboxes to select between different Scenes, and uses various ways to transition between them.

• TransitionManager
• Transition
• Scene

• Android UI ビュー
• Java

Sample demonstrating how to set up SensorEventListeners for step detectors and step counters.

• Sensor
• SensorEvent
• SensorEventListener
• SensorManager

• センサー
• Java

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

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

• セキュリティ
• Android のセキュリティとプライバシー
• Kotlin

Sample for the Androidx Biometrics Library

• BiometricManager
• BiometricPrompt

• セキュリティ
• Android のセキュリティとプライバシー
• Kotlin

Sample demonstrating how to advertise small amounts of data using the Bluetooth Low Energy API. Also demonstrates how to scan for those Advertisements. (requires 2 devices to see full operation)

• BluetoothLeAdvertiser
• BluetoothLeScanner

• Android の接続性
• 接続
• Java

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 カメラとメディア
• カメラ
• 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 カメラとメディア
• カメラ
• 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 カメラとメディア
• カメラ
• Kotlin

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

• Android UI ビュー
• Java

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

• Android UI ビュー
• Kotlin

This sample demonstrates how to write an application which accepts rich content (such as images) sent from a keyboard using the Commit Content API.

• EditText
• import
• EditorInfoCompat
• import
• InputConnectionCompat
• import
• InputContentInfoCompat

• Android UI ビュー
• Java

This sample demonstrates how to write an keyboard which sends rich content (such as images) to text fields using the Commit Content API.

• EditText
• import
• EditorInfoCompat
• import
• InputConnectionCompat
• import
• InputContentInfoCompat

• Android UI ビュー
• Java

This sample demonstrates how to use the ContentProvider with paging support introduced in Android O. The ContentProvider now accepts additional arguments for the offset and the limit in the query method to support paging instead of fetching all the

• ContentProvider
• DocumentsProvider

• Android のストレージ
• ストレージ
• Java

This sample demonstrates how to use the ContentProvider with paging support introduced in Android O. The ContentProvider now accepts additional arguments for the offset and the limit in the query method to support paging instead of fetching all the

• ContentProvider
• DocumentsProvider

• Android のストレージ
• ストレージ
• Java

This sample shows how to implement a custom Transition extending the standard Transition class.

• TransitionManager
• Transition
• Scene

• Android UI ビュー
• Java

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 アーキテクチャ
• 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 アーキテクチャ
• Kotlin

This sample demonstrates how to work with a WearableListenerService using: DataClient to exchange data events MessageClient to send messages CapabilityClient to find nodes with specific capabilities

• DataApi
• DataEvent
• WearableListenerService

• Android ウェアラブル
• Java

Sample demonstrating how to store data in a device protected storage which is always available while the device is booted both before and after any user credentials(PIN/Pattern/Password) are entered.

• createDeviceProtectedStorageContext

• セキュリティ
• Android のセキュリティとプライバシー
• Java

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 ビュー
• ユーザー インターフェース
• 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 ビュー
• ユーザー インターフェース
• Kotlin

This Android project accompanies the Continuous Shared Element Transitions: RecyclerView to ViewPager article. The code here provides the implementation for a specific transition between Android Fragments. It demonstrates how to implement a

• RecyclerView

• Android UI ビュー
• Java

This demo implements a real-time high-dynamic-range camera viewfinder, by alternating the sensor's exposure time between two exposure values on even and odd frames, and then compositing together the latest two frames whenever a new frame is captured.

• CameraAccessException
• CameraCaptureSession
• CameraCharacteristics
• CameraDevice
• CameraManager
• CaptureRequest
• CaptureResult
• TotalCaptureResult

• Android カメラとメディア
• カメラ
• Java

"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 ビュー
• ユーザー インターフェース
• 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 のビルド
• Kotlin

This sample app demonstrates how to integrate Google Analytics for Firebase into an instant app.

• Android のビルド
• Java

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 のビルド
• Kotlin

This sample app demonstrates building an installable and an instant app with the same behaviors. The functionality of the instant app is split in two features, which can be individually launched on a device.

• Android のビルド
• Java

This sample demonstrates how to create a started or a bound service within Android Instant Apps.

• Android のビルド
• Java

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 のビルド
• Kotlin

This sample demonstrates the use of animation interpolators and path animations for Material Design.

• ObjectAnimator
• Interpolator

• Android UI ビュー
• Java

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

• ContentResolver
• MediaStore

• Android のストレージ
• ストレージ
• Kotlin

This sample shows how to use the Media Effects APIs that were introduced in Android 4.0.

• Effect
• EffectContext
• EffectFactory
• GLSurfaceView

• グラフィック
• Android でのグラフィック
• Java

This sample uses the camera/camcorder as the A/V source for the MediaRecorder API. A TextureView is used as the camera preview which limits the code to API 14+. This can be easily replaced with a SurfaceView to run on older devices.

• Camera
• CamcorderProfile
• MediaRecorder
• TextureView

• Android カメラとメディア
• メディア
• Java

Demonstrates how to create a custom media route provider.

• メディア
• Android カメラとメディア
• Java

Sample demonstrating how to use the MIDI API to receive and process MIDI signals coming from an attached device.

• MidiManager
• MidiReceiver

• メディア
• Android カメラとメディア
• Java

Sample demonstrating how to use the MIDI API to receive and play MIDI messages coming from an attached input device (MIDI keyboard).

• MidiManager
• MidiReceiver

• Android カメラとメディア
• メディア
• Java

A collection of demos for Material Design Motion. Material Design provides a lot of examples about motion design. This sample shows how to implement them on Android. Understanding motion Speed Choreography Customization Animations and Transitions

• Transition
• SpringAnimation
• ObjectAnimator
• ViewPropertyAnimator

• Android UI ビュー
• Java

This sample demonstrates the use of the multi-window API available in Android N. It shows the use of new Intent flags and AndroidManifest properties to define the multi-window behavior. Switch the sample app into multi-window mode to see how it

• Intent
• ActivityOptions

• Android UI ビュー
• Java

This sample demonstrates the use of the multi-window API available in Android N. It shows the use of new Intent flags and AndroidManifest properties to define the multi-window behavior. Switch the sample app into multi-window mode to see how it

• Intent
• ActivityOptions

• Android UI ビュー
• Java

This repository contains sample apps that use the Android NDK. For an explanation of the layout of this repository, see ARCHITECTURE.md.

• C++

This sample demonstrates how to connect to the network and fetch raw HTML using HttpsURLConnection. AsyncTask is used to perform the fetch on a background thread.

• AsyncTask
• ConnectivityManager
• NetworkInfo

• Android の接続性
• 接続
• Java

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

• PdfRenderer

• グラフィック
• Android でのグラフィック
• 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

• メディア
• Android カメラとメディア
• Java

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 カメラとメディア
• メディア
• 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 でのユーザー補助
• 接続
• カメラ
• ユーザー インターフェース
• 権限
• Kotlin

Sample demonstrating the use of RecyclerView to layout elements with a LinearLayoutManager and with a GridLayoutManager. It also demonstrates how to handle touch events on elements.

• RecyclerView
• LinearLayoutManager
• GridLayoutManager
• ViewHolder

• Android UI ビュー
• Java

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 ビュー
• Kotlin

RenderScriptIntrinsic sample that demonstrates how to use RenderScript intrinsics. Creates several RenderScript intrinsics and shows a filtering result with various parameters. Also shows how to extends RedioButton with StateListDrawable.

• RenderScript
• ScriptIntrinsicBlur
• ScriptIntrinsicConvolve5x5
• ScriptIntrinsicColorMatrix

• Android NDK とゲーム
• Java

Sample demonstrating circular reveal effect. It covers creating an Animator with ViewAnimationUtils as well as defining the parameters of the circular reveal including starting position and radius.

• ViewAnimationUtils
• Animator

• Android UI ビュー
• Java

This sample demonstrates how to use Media Projection API to capture device screen in real time and show it on a SurfaceView.

• MediaProjection
• MediaProjectionManager
• VirtualDisplay

• メディア
• Android カメラとメディア
• Java

Sample demonstrating how to show some options directly in the list of share intent candidates.

• Person
• ShortcutInfoCompat
• ShortcutManagerCompat
• IconCompat

• ストレージ
• Android のストレージ
• Java

Using the OPEN_DOCUMENT intent, a client app can access a list of Document Providers on the device, and choose a file from any of them.

• Intent

• ストレージ
• Android のストレージ
• Java

This sample shows how to implement a simple documents provider using the storage access framework available in Android 4.4.

• DocumentsProvider

• Android のストレージ
• Java

A basic sample which shows how to use SwipeRefreshLayout to add the 'swipe-to-refresh' gesture to a View, enabling the ability to trigger a refresh from swiping down on the view. In this sample the View which can be refreshed is a ListView.

• Android UI ビュー
• Java

A sample which shows how to use SwipeRefreshLayout to add the 'swipe-to-refresh' gesture to a layout with multiple children, enabling the ability to trigger a refresh from swiping down on the visible view. In this sample, SwipeRefreshLayout contains

• Android UI ビュー
• Java

This sample is a Videos By Google app, designed to run on an Android TV device, which demonstrates how to use the Leanback Support library which enables you to easily develop beautiful Android TV apps with a user-friendly UI that complies with the UX

• app
• RecyclerView

• Java

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

• メディア
• Android カメラとメディア
• Kotlin

Sample demonstrates best practices for using WifiRTT APIs in Android. Also, this is a a useful application for testing Wifi-RTT enabled phones and access points and validating the estimated distance is close to the actual distance between them.

• ScanResult
• WifiManager
• RangingRequest
• RangingResult
• RangingResultCallback
• WifiRttManager

• Android の接続性
• 接続
• Java

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 デバイス
• Kotlin

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

• Android アーキテクチャの UI レイヤ
• Android アーキテクチャのデータレイヤ
• Android のテスト
• Android アーキテクチャ
• Kotlin

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

• Android アーキテクチャの UI レイヤ
• Android アーキテクチャのデータレイヤ
• Android のテスト
• Android アーキテクチャ
• 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

• センサー
• 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 アーキテクチャ
• 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 アーキテクチャ
• Java

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 ウェアラブル
• Kotlin

Demonstrates how to create and remove geofences using the GeofencingApi. Monitor geofence transitions and creates notifications whenever a device enters or exits a geofence. Introduction Geofencing combines awareness of the user's current location

• センサー
• Java

This is a sample app that uses Android Architecture Components with Dagger 2. NOTE It is a relatively more complex and complete example so if you are not familiar with Architecture Components, you are highly recommended to check other examples in

• アーキテクチャ
• Android アーキテクチャ
• Java

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 でのレイアウト
• 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 アーキテクチャの UI レイヤ
• Jetpack Compose のデザイン システム
• Jetpack Compose でのアニメーション
• 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 アーキテクチャの UI レイヤ
• Jetpack Compose でのテキスト
• Android の UI 状態生成
• Jetpack Compose のデザイン システム
• Jetpack Compose のアーキテクチャと状態
• Jetpack Compose でのアニメーション
• Android アーキテクチャの UI イベント
• Android Compose
• Jetpack Compose でのテスト
• 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 でのレイアウト
• Jetpack Compose でのアニメーション
• Jetpack Compose でのグラフィック
• 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 アーキテクチャの UI レイヤ
• Jetpack Compose の Navigation
• Android の UI 状態生成
• Jetpack Compose のデザイン システム
• Jetpack Compose でのレイアウト
• Jetpack Compose のアーキテクチャと状態
• Android Compose
• Jetpack Compose でのテスト
• 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 のデザイン システム
• Jetpack Compose でのレイアウト
• Jetpack Compose でのアニメーション
• Android Compose
• Kotlin

This sample showcases the following Architecture Components: LiveData ViewModels Data Binding And the following artifacts: androidx.lifecycle.lifecycle-livedata-ktx This project shows how to integrate them with Kotlin's coroutines using the liveData

• アーキテクチャ
• Android アーキテクチャ
• Java

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

• センサー
• Kotlin

This repository contains a list of layouts that showcases the various features and usage of ConstraintLayout and MotionLayout

• Android UI ビュー
• Java

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 のアーキテクチャと状態
• Android アーキテクチャのドメインレイヤ
• Jetpack Compose でのユーザー補助
• Android アーキテクチャのデータレイヤ
• Android アーキテクチャの UI レイヤ
• Jetpack Compose でのアニメーション
• Jetpack Compose でのテスト
• Android の UI 状態生成
• Android アーキテクチャ
• Jetpack Compose の Navigation
• Android の UI 状態ホルダー
• Android のテスト
• Jetpack Compose のデザイン システム
• Kotlin

Demonstrates use of the ActivityRecognitionApi to recognize a user's current activity, such as walking, driving, or standing still. Introduction Demonstrates use of the ActivityRecognitionApi to recognize a user's current activity, such as walking,

• センサー
• Java

This is an API sample to showcase how to implement observable queries in Room, with RxJava's Flowable objects.

• アーキテクチャ
• Android アーキテクチャ
• Java

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

• アーキテクチャ
• Android アーキテクチャ
• Kotlin

This sample demonstrates how to expose data stored in the Room persistence library with Android's Content Provider framework.

• アーキテクチャ
• Android アーキテクチャ
• Java

This sample demonstrates the use of Play Service's SMS Verification APIs to get access to specially-tagged text messages (the tags associate the message with the APK) without needing full SMS retrieval permission (SMS_READ).

• Credential

• ID
• Android のセキュリティとプライバシー
• Java

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

• センサー
• 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

This sample shows how to style text on Android using spans, in Kotlin, using Android KTX.

• SpannableStringBuilder
• Spanned
• SpannedString
• StyleSpan
• RelativeSizeSpan
• MetricAffectingSpan

• Android UI ビュー
• ユーザー インターフェース
• 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 ビュー
• 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 ビュー
• 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 ウェアラブル
• Kotlin

• OAuthClient
• HttpResponse
• ClientProtocolException
• HttpClient
• UrlEncodedFormEntity
• HttpGet
• HttpPost
• DefaultHttpClient
• BasicNameValuePair
• EntityUtils

• Android ウェアラブル
• Java

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 ウェアラブル
• Kotlin

A sample that shows how you can record voice using the microphone on a wearable and play the recorded voice, if the wearable device is connected to a speaker (bluetooth or built-in). If you want to learn how to play media content on Wear OS, refer to

• AudioTrack
• AudioRecord

• Android ウェアラブル
• Java