Uma seleção de exemplos e modelos de código para acelerar o desenvolvimento do seu app. Procure exemplos para aprender a criar diferentes componentes para seus aplicativos.

Filtrar por

Idioma
Tópico

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

  • ContentResolver
  • DocumentsContract
  • PdfRenderer
  • Armazenamento do Android
  • Storage
  • Kotlin
Intermediário

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

  • ContentResolver
  • DocumentsContract
  • Armazenamento do Android
  • Storage
  • Kotlin
Intermediário

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
  • Visualizações da UI do Android
  • Java
Intermediário
  • app
  • localstorage
  • Kotlin
Intermediário

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

  • Camada de interface da arquitetura do Android
  • Arquitetura do Android
  • Navegação no Jetpack Compose
  • Produção de estados na interface do Android
  • Testes do Android
  • Arquitetura e estados do Jetpack Compose
  • Eventos de interface na arquitetura do Android
  • Detentores de estado na interface do Android
  • Camada de dados da arquitetura do Android
  • Testes do Jetpack Compose
  • Kotlin
Intermediário

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
  • Arquitetura do Android
  • Kotlin
Intermediário

This sample showcases the following Architecture Components: Room ViewModels LiveData

  • Architecture
  • Arquitetura do Android
  • Java
Avançado

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

  • Architecture
  • Arquitetura do Android
  • Java
Avançado

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
  • Visualizações da UI do Android
  • Java
Avançado

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
  • Visualizações da UI do Android
  • Java
Intermediário

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
  • Mídia
  • Câmera e mídia Android
  • Java
Avançado

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

  • Câmera e mídia Android
  • Mídia
  • Java

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

  • MotionEvent
  • Visualizações da UI do Android
  • Java
Intermediário

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 e jogos
  • Java
Especialista

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
  • Visualizações da UI do Android
  • Java
Avançado

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

  • Sensor
  • SensorEvent
  • SensorEventListener
  • SensorManager
  • Sensores
  • Java
Avançado

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

  • FingerprintManager
  • AuthenticationCallback
  • CryptoObject
  • KeyGenParameterSpec
  • KeyStore
  • Cipher
  • KeyGenerator
  • Segurança
  • Segurança e privacidade do Android
  • Kotlin
Intermediário

Sample for the Androidx Biometrics Library

  • BiometricManager
  • BiometricPrompt
  • Segurança
  • Segurança e privacidade do Android
  • Kotlin
Intermediário

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
  • Conectividade do Android
  • Conectividade
  • Java
Avançado

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
  • Câmera e mídia Android
  • Câmera
  • Kotlin
Intermediário

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
  • Câmera e mídia Android
  • Câmera
  • Kotlin
Intermediário

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
  • Câmera e mídia Android
  • Câmera
  • Kotlin
Intermediário

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

  • Visualizações da UI do Android
  • Java

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

  • Visualizações da UI do Android
  • Kotlin
Destaque
O Now in Android é um app totalmente funcional criado com o Kotlin e o Jetpack Compose. Ele modela práticas recomendadas de design e desenvolvimento do Android e foi projetado para ser uma referência útil para desenvolvedores.