Recursos e APIs

O Android 16 introduz ótimos recursos e APIs novos para desenvolvedores. As seções a seguir resumem esses recursos para ajudar você a começar a usar as APIs relacionadas.

Para uma lista detalhada das APIs novas, modificadas e removidas, leia o Relatório de diferenças da API. Para saber mais sobre as novas APIs, acesse a Referência da API do Android. As novas APIs estão em destaque para facilitar a visualização.

Também é importante analisar as áreas em que as mudanças na plataforma podem afetar seus apps. Para mais informações, consulte as seguintes páginas:

Principal recurso

O Android inclui novas APIs que ampliam os recursos principais do sistema.

Duas versões da API do Android em 2025

  • This preview is for the next major release of Android with a planned launch in Q2 of 2025. This release is similar to all of our API releases in the past, where we can have planned behavior changes that are often tied to a targetSdkVersion.
  • We're planning the major release a quarter earlier (Q2 rather than Q3 in prior years) to better align with the schedule of device launches across our ecosystem, so more devices can get the major release of Android sooner. With the major release coming in Q2, you'll need to do your annual compatibility testing a few months earlier than in previous years to make sure your apps are ready.
  • We plan to have another release in Q4 of 2025 which also will include new developer APIs. The Q2 major release will be the only release in 2025 to include planned behavior changes that could affect apps.

In addition to new developer APIs, the Q4 minor release will pick up feature updates, optimizations, and bug fixes; it will not include any app-impacting behavior changes.

Timeline view of Android releases in 2025, noting that the 25Q2 release is a major release and the 25Q4 release is a minor release.

We'll continue to have quarterly Android releases. The Q1 and Q3 updates in-between the API releases will provide incremental updates to help ensure continuous quality. We're actively working with our device partners to bring the Q2 release to as many devices as possible.

Using new APIs with major and minor releases

Guarding a code block with a check for API level is done today using the SDK_INT constant with VERSION_CODES. This will continue to be supported for major Android releases.

if (SDK_INT >= VERSION_CODES.BAKLAVA) {
  // Use APIs introduced in Android 16
}

The new SDK_INT_FULL constant can be used for API checks against both major and minor versions with the new VERSION_CODES_FULL enumeration.

if (SDK_INT_FULL >= VERSION_CODES_FULL.[MAJOR or MINOR RELEASE]) {
  // Use APIs introduced in a major or minor release
}

You can also use the Build.getMinorSdkVersion() method to get just the minor SDK version.

val minorSdkVersion = Build.getMinorSdkVersion(VERSION_CODES_FULL.BAKLAVA)

These APIs have not yet been finalized and are subject to change, so please send us feedback if you have any concerns.

Experiência do usuário e interface do sistema

O Android 16 oferece aos desenvolvedores e usuários de apps mais controle e flexibilidade para configurar o dispositivo de acordo com as necessidades.

Notificações com foco no progresso

Android 16 引入了以进度为中心的通知，可帮助用户顺畅地跟踪用户发起的端到端历程。

Notification.ProgressStyle 是一种新的通知样式，可让您创建以进度为中心的通知。主要用例包括共享车辆、送货和导航。在 Notification.ProgressStyle 类中，您可以使用点和细分来表示用户体验历程中的状态和里程碑。

To learn more, see the Progress-centric notifications documentation page.

Uma notificação focada no progresso exibida na tela de bloqueio.
Uma notificação focada no progresso exibida na aba de notificações.

Atualizações de volta preditiva

Android 16 添加了新 API，可帮助您在手势导航中启用预测性返回系统动画，例如“返回主屏幕”动画。通过使用新的 PRIORITY_SYSTEM_NAVIGATION_OBSERVER 注册 onBackInvokedCallback，您的应用可以在系统处理返回导航时接收常规的 onBackInvoked 调用，而不会影响正常的返回导航流程。

Android 16 还添加了 finishAndRemoveTaskCallback() 和 moveTaskToBackCallback。通过向 OnBackInvokedDispatcher 注册这些回调，系统可以在调用返回手势时触发特定行为并播放相应的提前动画。

Retorno tátil mais completo

自诞生之日起，Android 就提供了对触感反馈致动器的控制。

Android 11 添加了对更复杂的触感反馈效果的支持，更高级的致动器可以通过设备定义的语义基元 VibrationEffect.Compositions 支持这些效果。

Android 16 添加了触感反馈 API，让应用能够定义触感反馈效果的振幅和频率曲线，同时抽象出设备功能之间的差异。

Produtividade e ferramentas para desenvolvedores

Embora a maior parte do nosso trabalho para melhorar a produtividade se concentre em ferramentas como Android Studio, Jetpack Compose e as bibliotecas do Android Jetpack, sempre procuramos maneiras de ajudar você a realizar sua visão.

Processamento de conteúdo para planos de fundo interativos

In Android 16, the live wallpaper framework is gaining a new content API to address the challenges of dynamic, user-driven wallpapers. Currently, live wallpapers incorporating user-provided content require complex, service-specific implementations. Android 16 introduces WallpaperDescription and WallpaperInstance. WallpaperDescription lets you identify distinct instances of a live wallpaper from the same service. For example, a wallpaper that has instances on both the home screen and on the lock screen may have unique content in both places. The wallpaper picker and WallpaperManager use this metadata to better present wallpapers to users, streamlining the process for you to create diverse and personalized live wallpaper experiences.

Desempenho e bateria

O Android 16 apresenta APIs que ajudam a coletar insights sobre seus apps.

Criação de perfis acionados pelo sistema

ProfilingManager was added in Android 15, giving apps the ability to request profiling data collection using Perfetto on public devices in the field. However, since this profiling must be started from the app, critical flows such as startups or ANRs would be difficult or impossible for apps to capture.

To help with this, Android 16 introduces system-triggered profiling to ProfilingManager. Apps can register interest in receiving traces for certain triggers such as cold start reportFullyDrawn or ANRs, and then the system starts and stops a trace on the app's behalf. After the trace completes, the results are delivered to the app's data directory.

Iniciar o componente no ApplicationStartInfo

ApplicationStartInfo 在 Android 15 中添加，可让应用查看进程启动原因、启动类型、启动时间、节流和其他实用诊断数据。Android 16 添加了 getStartComponent()，用于区分触发启动的组件类型，这有助于优化应用的启动流程。

Melhor introspecção de trabalho

The JobScheduler#getPendingJobReason() API returns a reason why a job might be pending. However, a job might be pending for multiple reasons.

In Android 16, we are introducing a new API JobScheduler#getPendingJobReasons(int jobId), which returns multiple reasons why a job is pending, due to both explicit constraints set by the developer and implicit constraints set by the system.

We're also introducing JobScheduler#getPendingJobReasonsHistory(int jobId), which returns a list of the most recent constraint changes.

We recommend using the API to help you debug why your jobs may not be executing, especially if you're seeing reduced success rates of certain tasks or have bugs around latency of certain job completion. For example, updating widgets in the background failed to occur or prefetch job failed to be called prior to app start.

This can also better help you understand if certain jobs are not completing due to system defined constraints versus explicitly set constraints.

Taxa de atualização adaptativa

Adaptive refresh rate (ARR), introduced in Android 15, enables the display refresh rate on supported hardware to adapt to the content frame rate using discrete VSync steps. This reduces power consumption while eliminating the need for potentially jank-inducing mode-switching.

Android 16 introduces hasArrSupport() and getSuggestedFrameRate(int) while restoring getSupportedRefreshRates() to make it easier for your apps to take advantage of ARR. RecyclerView 1.4 internally supports ARR when it is settling from a fling or smooth scroll, and we're continuing our work to add ARR support into more Jetpack libraries. This frame rate article covers many of the APIs you can use to set the frame rate so that your app can directly use ARR.

APIs de headroom no ADPF

The SystemHealthManager introduces the getCpuHeadroom and getGpuHeadroom APIs, designed to provide games and resource-intensive apps with estimates of available CPU and GPU resources. These methods offer a way for you to gauge how your app or game can best improve system health, particularly when used in conjunction with other Android Dynamic Performance Framework (ADPF) APIs that detect thermal throttling.

By using CpuHeadroomParams and GpuHeadroomParams on supported devices, you can customize the time window used to compute the headroom and select between average or minimum resource availability. This can help you reduce your CPU or GPU resource usage accordingly, leading to better user experiences and improved battery life.

Acessibilidade

O Android 16 adiciona novas APIs e recursos de acessibilidade que podem ajudar a oferecer seu app a todos os usuários.

APIs de acessibilidade aprimoradas

Android 16 adds additional APIs to enhance UI semantics that help improve consistency for users that rely on accessibility services, such as TalkBack.

Outline text for maximum text contrast

Users with low vision often have reduced contrast sensitivity, making it challenging to distinguish objects from their backgrounds. To help these users, Android 16 introduces outline text, replacing high contrast text, which draws a larger contrasting area around text to greatly improve legibility.

Android 16 contains new AccessibilityManager APIs to let your apps check or register a listener to see if this mode is enabled. This is primarily for UI Toolkits like Compose to offer a similar visual experience. If you maintain a UI Toolkit library or your app performs custom text rendering that bypasses the android.text.Layout class then you can use this to know when outline text is enabled.

Text with enhanced contrast before and after Android 16's new outline text accessibility feature

Duration added to TtsSpan

Android 16 extends TtsSpan with a TYPE_DURATION, consisting of ARG_HOURS, ARG_MINUTES, and ARG_SECONDS. This lets you directly annotate time duration, ensuring accurate and consistent text-to-speech output with services like TalkBack.

Support elements with multiple labels

Android currently allows UI elements to derive their accessibility label from another, and now offers the ability for multiple labels to be associated, a common scenario in web content. By introducing a list-based API within AccessibilityNodeInfo, Android can directly support these multi-label relationships. As part of this change, we've deprecated AccessibilityNodeInfo#setLabeledBy and #getLabeledBy in favor of #addLabeledBy, #removeLabeledBy, and #getLabeledByList.

Improved support for expandable elements

Android 16 adds accessibility APIs that allow you to convey the expanded or collapsed state of interactive elements, such as menus and expandable lists. By setting the expanded state using setExpandedState and dispatching TYPE_WINDOW_CONTENT_CHANGED AccessibilityEvents with a CONTENT_CHANGE_TYPE_EXPANDED content change type, you can ensure that screen readers like TalkBack announce state changes, providing a more intuitive and inclusive user experience.

Indeterminate ProgressBars

Android 16 adds RANGE_TYPE_INDETERMINATE, giving a way for you to expose RangeInfo for both determinate and indeterminate ProgressBar widgets, allowing services like TalkBack to more consistently provide feedback for progress indicators.

Tri-state CheckBox

The new AccessibilityNodeInfo getChecked and setChecked(int) methods in Android 16 now support a "partially checked" state in addition to "checked" and "unchecked." This replaces the deprecated boolean isChecked and setChecked(boolean).

Supplemental descriptions

When an accessibility service describes a ViewGroup, it combines content labels from its child views. If you provide a contentDescription for the ViewGroup, accessibility services assume you are also overriding the description of non-focusable child views. This can be problematic if you want to label things like a drop-down (for example, "Font Family") while preserving the current selection for accessibility (for example, "Roboto"). Android 16 adds setSupplementalDescription so you can provide text that provides information about a ViewGroup without overriding information from its children.

Required form fields

Android 16 adds setFieldRequired to AccessibilityNodeInfo so apps can tell an accessibility service that input to a form field is required. This is an important scenario for users filling out many types of forms, even things as simple as a required terms and conditions checkbox, helping users to consistently identify and quickly navigate between required fields.

Usar o smartphone como entrada de microfone para ligações com aparelhos auditivos de LEA

Android 16 adds the capability for users of LE Audio hearing aids to switch between the built-in microphones on the hearing aids and the microphone on their phone for voice calls. This can be helpful in noisy environments or other situations where the hearing aid's microphones might not perform well.

Controles de volume ambiente para aparelhos auditivos LEA

Android 16 adds the capability for users of LE Audio hearing aids to adjust the volume of ambient sound that is picked up by the hearing aid's microphones. This can be helpful in situations where background noise is too loud or too quiet.

Câmera

O Android 16 aprimora o suporte a usuários profissionais de câmeras, permitindo a exposição automática híbrida, além de ajustes precisos de temperatura e matiz de cores. Um novo indicador de modo noturno ajuda o app a saber quando alternar para e de uma sessão de câmera no modo noturno. As novas ações Intent facilitam a captura de fotos em movimento. Continuamos melhorando as imagens UltraHDR com suporte à codificação HEIC e novos parâmetros do rascunho da norma ISO 21496-1.

Exposição automática híbrida

Android 16 adds new hybrid auto-exposure modes to Camera2, allowing you to manually control specific aspects of exposure while letting the auto-exposure (AE) algorithm handle the rest. You can control ISO + AE, and exposure time + AE, providing greater flexibility compared to the current approach where you either have full manual control or rely entirely on auto-exposure.

fun setISOPriority() {
    // ... (Your existing code before the snippet) ...

    val availablePriorityModes = mStaticInfo.characteristics.get(
        CameraCharacteristics.CONTROL_AE_AVAILABLE_PRIORITY_MODES
    )

    // ... (Your existing code between the snippets) ...

    // Turn on AE mode to set priority mode
    reqBuilder.set(
        CaptureRequest.CONTROL_AE_MODE,
        CameraMetadata.CONTROL_AE_MODE_ON
    )
    reqBuilder.set(
        CaptureRequest.CONTROL_AE_PRIORITY_MODE,
        CameraMetadata.CONTROL_AE_PRIORITY_MODE_SENSOR_SENSITIVITY_PRIORITY
    )
    reqBuilder.set(
        CaptureRequest.SENSOR_SENSITIVITY,
        TEST_SENSITIVITY_VALUE
    )
    val request: CaptureRequest = reqBuilder.build()

    // ... (Your existing code after the snippet) ...
}

Ajustes precisos de temperatura e tonalidade da cor

O Android 16 adiciona suporte à câmera para ajustes de temperatura de cor e matiz para oferecer melhor suporte a aplicativos profissionais de gravação de vídeo. Em versões anteriores do Android, era possível controlar as configurações de balanço de branco usando CONTROL_AWB_MODE, que contém opções limitadas a uma lista predefinida, como Incandescent, Cloudy e Twilight. O COLOR_CORRECTION_MODE_CCT permite o uso de COLOR_CORRECTION_COLOR_TEMPERATURE e COLOR_CORRECTION_COLOR_TINT para ajustes precisos do equilíbrio de branco com base na temperatura de cor correlacionada.

public void setCCT() {
  ...
  Range<Integer> colorTemperatureRange =
     mStaticInfo.getCharacteristics().get(CameraCharacteristics.
     COLOR_CORRECTION_COLOR_TEMPERATURE_RANGE);
  // Set to manual mode to enable CCT mode
  reqBuilder.set(CaptureRequest.CONTROL_AWB_MODE, CameraMetadata.CONTROL_AWB_MODE_OFF);
  reqBuilder.set(CaptureRequest.COLOR_CORRECTION_MODE,
      CameraMetadata.COLOR_CORRECTION_MODE_CCT);
  reqBuilder.set(CaptureRequest.COLOR_CORRECTION_COLOR_TEMPERATURE, 5000);
  reqBuilder.set(CaptureRequest.COLOR_CORRECTION_COLOR_TINT, 30);
  CaptureRequest request = reqBuilder.build();
  ...
}

Os exemplos a seguir mostram como uma foto ficaria após aplicar diferentes ajustes de temperatura e matiz de cor:

A imagem original sem ajustes de temperatura ou matiz aplicados.
A imagem com a temperatura de cor ajustada para 3000.
A imagem com a temperatura de cor ajustada para 7000.


A imagem com os níveis de matiz reduzidos em 50.
A imagem com os níveis de matiz aumentados em 50.

Detecção de cena do modo noturno da câmera

Para ajudar o app a saber quando alternar para e de uma sessão de câmera no modo noturno, o Android 16 adiciona EXTENSION_NIGHT_MODE_INDICATOR. Se tiver suporte, ele estará disponível no CaptureResult no Camera2.

Essa é a API que mencionamos brevemente como em breve na postagem do blog Como o Instagram permitiu que os usuários tirassem fotos incríveis em ambientes com pouca luz. Essa postagem é um guia prático sobre como implementar o Modo noturno com um estudo de caso que relaciona fotos de alta qualidade no Modo noturno do app a um aumento no número de fotos compartilhadas pela câmera do app.

Ações de intent de captura de fotos com movimento

Android 16 adds standard Intent actions — ACTION_MOTION_PHOTO_CAPTURE, and ACTION_MOTION_PHOTO_CAPTURE_SECURE — which request that the camera application capture a motion photo and return it.

You must either pass an extra EXTRA_OUTPUT to control where the image will be written, or a Uri through Intent.setClipData(ClipData). If you don't set a ClipData, it will be copied there for you when calling Context.startActivity(Intent).

An example of a motion photo, showing the still image followed by the motion playback.

Melhorias de imagem UltraHDR

Ilustração da qualidade de imagem do intervalo dinâmico padrão (SDR) em comparação com o intervalo dinâmico alto (HDR).

O Android 16 continua nosso trabalho para oferecer uma qualidade de imagem incrível com imagens UltraHDR. Ele adiciona suporte a imagens UltraHDR no formato de arquivo HEIC. Essas imagens vão receber o tipo ImageFormat HEIC_ULTRAHDR e vão conter um mapa de ganho incorporado semelhante ao formato JPEG UltraHDR. Também estamos trabalhando no suporte a AVIF para UltraHDR. Fique de olho.

Além disso, o Android 16 implementa outros parâmetros no UltraHDR do draft standard ISO 21496-1 (link em inglês), incluindo a capacidade de receber e definir o espaço de cor em que a matemática do mapa de ganho precisa ser aplicada, além de suportar imagens de base codificadas em HDR com mapas de ganho SDR.

Gráficos

O Android 16 inclui as melhorias mais recentes de gráficos, como efeitos gráficos personalizados com AGSL.

Efeitos gráficos personalizados com a AGSL

Android 16 添加了 RuntimeColorFilter 和 RuntimeXfermode，让您可以创作阈值、Sepia 和 Hue Saturation 等复杂效果，并将其应用于绘制调用。从 Android 13 开始，您可以使用 AGSL 创建扩展 Shader 的自定义 RuntimeShader。新 API 反映了这一点，添加了由 AGSL 驱动的 RuntimeColorFilter（用于扩展 ColorFilter）和 Xfermode 效果，让您可以在源像素和目标像素之间实现基于 AGSL 的自定义合成和混合。

private val thresholdEffectString = """
    uniform half threshold;

    half4 main(half4 c) {
        half luminosity = dot(c.rgb, half3(0.2126, 0.7152, 0.0722));
        half bw = step(threshold, luminosity);
        return bw.xxx1 * c.a;
    }"""

fun setCustomColorFilter(paint: Paint) {
   val filter = RuntimeColorFilter(thresholdEffectString)
   filter.setFloatUniform(0.5);
   paint.colorFilter = filter
}

Conectividade

O Android 16 atualiza a plataforma para dar ao app acesso aos avanços mais recentes em comunicação e tecnologias sem fio.

Alcance com segurança aprimorada

Android 16 adds support for robust security features in Wi-Fi location on supported devices with Wi-Fi 6's 802.11az, allowing apps to combine the higher accuracy, greater scalability, and dynamic scheduling of the protocol with security enhancements including AES-256-based encryption and protection against MITM attacks. This allows it to be used more safely in proximity use cases, such as unlocking a laptop or a vehicle door. 802.11az is integrated with the Wi-Fi 6 standard, leveraging its infrastructure and capabilities for wider adoption and easier deployment.

APIs genéricas de medição de distância

Android 16 includes the new RangingManager, which provides ways to determine the distance and angle on supported hardware between the local device and a remote device. RangingManager supports the usage of a variety of ranging technologies such as BLE channel sounding, BLE RSSI-based ranging, Ultra Wideband, and Wi-Fi round trip time.

Presença do dispositivo do gerenciador de dispositivos complementar

No Android 16, novas APIs estão sendo introduzidas para vincular o serviço do app complementar. O serviço será vinculado quando o BLE estiver no alcance e o Bluetooth estiver conectado e será desvinculado quando o BLE estiver fora do alcance ou o Bluetooth estiver desconectado. O app vai receber um novo callback 'onDevicePresenceEvent()' com base em vários DevicePresenceEvent. Confira mais detalhes em 'startObservingDevicePresence(ObservingDevicePresenceRequest)'.

Mídia

O Android 16 inclui vários recursos que melhoram a experiência de mídia.

Melhorias no seletor de fotos

照片选择器为用户提供了一种安全的内置授权方式，让用户可以向应用授予对本地存储空间和云端存储空间中所选图片和视频的访问权限，而不是对整个媒体库的访问权限。通过 Google 系统更新和 Google Play 服务组合使用模块化系统组件，该工具向后支持到 Android 4.4（API 级别 19）。只需几行代码即可与相关的 Android Jetpack 库集成。

Android 16 对照片选择器进行了以下改进：

  • 嵌入式照片选择器：新 API，可让应用将照片选择器嵌入其视图层次结构中。这样，它就感觉像是应用中更为集成的一部分，同时仍可利用进程隔离功能，让用户能够选择媒体，而无需应用拥有过于宽泛的权限。为了最大限度地提高跨平台版本的兼容性并简化集成，如果您想集成嵌入式照片选择器，则需要使用即将推出的 Android Jetpack 库。
  • 照片选择器中的云搜索：新的 API 可让 Android 照片选择器从云端媒体提供商中进行搜索。照片选择器中的搜索功能即将推出。

Vídeo profissional avançado

Android 16 introduces support for the Advanced Professional Video (APV) codec which is designed to be used for professional level high quality video recording and post production.

The APV codec standard has the following features:

  • Perceptually lossless video quality (close to raw video quality)
  • Low complexity and high throughput intra-frame-only coding (without pixel domain prediction) to better support editing workflows
  • Support for high bit-rate range up to a few Gbps for 2K, 4K and 8K resolution content, enabled by a lightweight entropy coding scheme
  • Frame tiling for immersive content and for enabling parallel encoding and decoding
  • Support for various chroma sampling formats and bit-depths
  • Support for multiple decoding and re-encoding without severe visual quality degradation
  • Support multi-view video and auxiliary video like depth, alpha, and preview
  • Support for HDR10/10+ and user-defined metadata

A reference implementation of APV is provided through the OpenAPV project. Android 16 will implement support for the APV 422-10 Profile that provides YUV 422 color sampling along with 10-bit encoding and for target bitrates of up to 2Gbps.

Privacidade

O Android 16 inclui vários recursos que ajudam os desenvolvedores de apps a proteger a privacidade do usuário.

Atualizações do app Conexão Saúde

Health Connect adds ACTIVITY_INTENSITY, a data type defined according to World Health Organization guidelines around moderate and vigorous activity. Each record requires the start time, the end time, and whether the activity intensity is moderate or vigorous.

Health Connect also contains updated APIs supporting medical records. This allows apps to read and write medical records in FHIR format with explicit user consent.

Sandbox de privacidade no Android

O Android 16 incorpora a versão mais recente do Sandbox de privacidade no Android, parte do nosso trabalho contínuo para desenvolver tecnologias em que os usuários sabem que a privacidade deles está protegida. Nosso site tem mais informações sobre o programa Beta do Sandbox de privacidade para desenvolvedores Android para ajudar você a começar. Confira o SDK Runtime, que permite que os SDKs sejam executados em um ambiente de execução dedicado separado do app que eles estão oferecendo, oferecendo proteções mais fortes em relação à coleta e ao compartilhamento de dados do usuário.

Segurança

O Android 16 inclui recursos que ajudam a melhorar a segurança do app e proteger os dados dele.

API de compartilhamento de chaves

Android 16 adds APIs that support sharing access to Android Keystore keys with other apps. The new KeyStoreManager class supports granting and revoking access to keys by app uid, and includes an API for apps to access shared keys.

Formatos de dispositivo

O Android 16 oferece suporte aos seus apps para aproveitar ao máximo os formatos do Android.

Framework padronizado de qualidade de imagem e áudio para TVs

Android 16 中的新 MediaQuality 软件包公开了一组标准化 API，用于访问音频和图片配置文件以及与硬件相关的设置。这样，在线播放应用就可以查询配置文件并将其动态应用于媒体：

  • 使用更大动态范围进行母版制作的电影需要更高的色彩准确度，才能看清阴影中的细微细节并根据环境光线进行调整，因此，最好使用色彩准确度优先于亮度的配置文件。
  • 体育赛事直播通常采用较窄的动态范围进行母版制作，但通常是在白天观看，因此偏向亮度而非色彩准确度的配置文件可以获得更好的效果。
  • 完全交互式内容需要尽可能减少处理以缩短延迟时间，并且需要更高的帧速率，因此许多电视都附带游戏配置文件。

借助此 API，应用可以在个人资料之间切换，用户可以享受调整支持的电视，以便尽可能适合其内容。

Internacionalização

O Android 16 adiciona recursos e capacidades que complementam a experiência do usuário quando um dispositivo é usado em diferentes idiomas.

Texto vertical

Android 16 adds low-level support for rendering and measuring text vertically to provide foundational vertical writing support for library developers. This is particularly useful for languages like Japanese that commonly use vertical writing systems. A new flag, VERTICAL_TEXT_FLAG, has been added to the Paint class. When this flag is set using Paint.setFlags, Paint's text measurement APIs will report vertical advances instead of horizontal advances, and Canvas will draw text vertically.

val text = "「春は、曙。」"
Box(
    Modifier.padding(innerPadding).background(Color.White).fillMaxSize().drawWithContent {
        drawIntoCanvas { canvas ->
            val paint = Paint().apply { textSize = 64.sp.toPx() }
            // Draw text vertically
            paint.flags = paint.flags or VERTICAL_TEXT_FLAG
            val height = paint.measureText(text)
            canvas.nativeCanvas.drawText(
                text,
                0,
                text.length,
                size.width / 2,
                (size.height - height) / 2,
                paint
            )
        }
    }
) {}

Personalização do sistema de medição

Users can now customize their measurement system in regional preferences within Settings. The user preference is included as part of the locale code, so you can register a BroadcastReceiver on ACTION_LOCALE_CHANGED to handle locale configuration changes when regional preferences change.

Using formatters can help match the local experience. For example, "0.5 in" in English (United States), is "12,7 mm" for a user who has set their phone to English (Denmark) or who uses their phone in English (United States) with the metric system as the measurement system preference.

To find these settings, open the Settings app and navigate to System > Languages & region.