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.

Você também precisa analisar as áreas em que as mudanças na plataforma podem afetar seus apps. Para mais informações, consulte as seguintes páginas:

• Mudanças de comportamento que afetam apps destinados ao Android 16
• Mudanças de comportamento que afetam todos os apps, independente da targetSdkVersion.

Principal recurso

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

Dois lançamentos de APIs do Android em 2025

• Esta visualização é para a próxima versão principal do Android, com lançamento previsto no segundo trimestre de 2025. Esta versão é semelhante a todas as versões de API do passado, em que podemos ter mudanças de comportamento planejadas que geralmente são vinculadas a uma targetSdkVersion.
• Estamos planejando o lançamento principal um trimestre antes (segundo trimestre em vez do terceiro trimestre em anos anteriores) para alinhar melhor com a programação de lançamentos de dispositivos em todo o ecossistema, para que mais dispositivos possam receber a versão principal do Android mais cedo. Com o lançamento principal no segundo trimestre, você precisará fazer o teste anual de compatibilidade alguns meses antes do que nos anos anteriores para garantir que seus apps estão prontos.
• Planejamos lançar outra versão no 4º trimestre de 2025, que também vai incluir novas APIs para desenvolvedores. A versão principal do segundo trimestre será a única em 2025 a incluir mudanças de comportamento planejadas que podem afetar apps.

Além das novas APIs para desenvolvedores, a versão secundária do Q4 vai incluir atualizações de recursos, otimizações e correções de bugs. Ela não vai incluir mudanças de comportamento que afetam o app.

Vamos continuar lançando versões do Android trimestralmente. As atualizações do Q1 e do Q3 entre as versões da API vão oferecer atualizações incrementais para ajudar a garantir qualidade contínua. Estamos trabalhando ativamente com nossos parceiros de dispositivos para disponibilizar a versão do segundo trimestre no maior número possível de dispositivos.

Como usar novas APIs com versões principais e secundárias

Hoje, a proteção de um bloco de código com uma verificação do nível da API é feita usando a constante SDK_INT com VERSION_CODES. Esse suporte vai continuar sendo oferecido para as principais versões do Android.

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

A nova constante SDK_INT_FULL pode ser usada para verificações de API em relação a versões principais e secundárias com a nova enumeração VERSION_CODES_FULL.

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

Você também pode usar o método Build.getMinorSdkVersion() para acessar apenas a versão secundária do SDK.

val minorSdkVersion = Build.getMinorSdkVersion(VERSION_CODES_FULL.BAKLAVA)

Essas APIs ainda não foram finalizadas e estão sujeitas a alterações. Envie feedback se tiver alguma dúvida.

Experiência do usuário e interface do sistema

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

Notificações focadas no progresso

O Android 16 apresenta notificações com foco no progresso para ajudar os usuários a acompanhar as jornadas iniciadas pelo usuário do início ao fim.

Notification.ProgressStyle é um novo estilo de notificação que permite criar notificações com foco no progresso. Os principais casos de uso incluem compartilhamento de viagens, entrega e navegação. Na classe Notification.ProgressStyle, é possível denotar estados e marcos em uma jornada do usuário usando pontos e segmentos.

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

A progress-centric notification displayed on the lockscreen.

A progress-centric notification displayed in the notification shade.

Atualizações de volta preditiva

Android 16 adds new APIs to help you enable predictive back system animations in gesture navigation such as the back-to-home animation. Registering the onBackInvokedCallback with the new PRIORITY_SYSTEM_NAVIGATION_OBSERVER allows your app to receive the regular onBackInvoked call whenever the system handles a back navigation without impacting the normal back navigation flow.

Android 16 additionally adds the finishAndRemoveTaskCallback() and moveTaskToBackCallback. By registering these callbacks with the OnBackInvokedDispatcher, the system can trigger specific behaviors and play corresponding ahead-of-time animations when the back gesture is invoked.

Retorno tátil mais avançado

Android has exposed control over the haptic actuator ever since its inception.

Android 11 added support for more complex haptic effects that more advanced actuators could support through VibrationEffect.Compositions of device-defined semantic primitives.

Android 16 adds haptic APIs that let apps define the amplitude and frequency curves of a haptic effect while abstracting away differences between device capabilities.

Produtividade e ferramentas para desenvolvedores

Embora a maior parte do nosso trabalho para melhorar sua produtividade se concentre em ferramentas como o Android Studio, o Jetpack Compose e as bibliotecas do Android Jetpack, sempre buscamos maneiras na plataforma 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 acionada 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 componente em ApplicationStartInfo

ApplicationStartInfo was added in Android 15, allowing an app to see reasons for process start, start type, start times, throttling, and other useful diagnostic data. Android 16 adds getStartComponent() to distinguish what component type triggered the start, which can be helpful for optimizing the startup flow of your app.

Melhor introspecção de tarefas

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 na 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 você a levar seu app para 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.

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 chamadas de voz com aparelhos auditivos 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 melhora o suporte para usuários de câmeras profissionais, permitindo a exposição automática híbrida, além de ajustes precisos de temperatura e tonalidade de cor. Um novo indicador de modo noturno ajuda o app a saber quando alternar para uma sessão de câmera no modo noturno e vice-versa. Novas ações de Intent facilitam a captura de fotos em movimento, e continuamos a melhorar as imagens UltraHDR com suporte à codificação HEIC e novos parâmetros do padrão 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

Android 16 adds camera support for fine color temperature and tint adjustments to better support professional video recording applications. In previous Android versions, you could control white balance settings through CONTROL_AWB_MODE, which contains options limited to a preset list, such as Incandescent, Cloudy, and Twilight. The COLOR_CORRECTION_MODE_CCT enables the use of COLOR_CORRECTION_COLOR_TEMPERATURE and COLOR_CORRECTION_COLOR_TINT for precise adjustments of white balance based on the correlated color temperature.

fun setCCT() {
    // ... (Your existing code before this point) ...

    val colorTemperatureRange: Range<Int> =
        mStaticInfo.characteristics[CameraCharacteristics.COLOR_CORRECTION_COLOR_TEMPERATURE_RANGE]

    // Set to manual mode to enable CCT mode
    reqBuilder[CaptureRequest.CONTROL_AWB_MODE] = CameraMetadata.CONTROL_AWB_MODE_OFF
    reqBuilder[CaptureRequest.COLOR_CORRECTION_MODE] = CameraMetadata.COLOR_CORRECTION_MODE_CCT
    reqBuilder[CaptureRequest.COLOR_CORRECTION_COLOR_TEMPERATURE] = 5000
    reqBuilder[CaptureRequest.COLOR_CORRECTION_COLOR_TINT] = 30

    val request: CaptureRequest = reqBuilder.build()

    // ... (Your existing code after this point) ...
}

The following examples show how a photo would look after applying different color temperature and tint adjustments:

Detecção de cena no modo noturno da câmera

To help your app know when to switch to and from a night mode camera session, Android 16 adds EXTENSION_NIGHT_MODE_INDICATOR. If supported, it's available in the CaptureResult within Camera2.

This is the API we briefly mentioned as coming soon in the How Instagram enabled users to take stunning low light photos blog post. That post is a practical guide on how to implement night mode together with a case study that links higher-quality in-app night mode photos with an increase in the number of photos shared from the in-app camera.

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).

Melhorias de imagem UltraHDR

Android 16 continues our work to deliver dazzling image quality with UltraHDR images. It adds support for UltraHDR images in the HEIC file format. These images will get ImageFormat type HEIC_ULTRAHDR and will contain an embedded gainmap similar to the existing UltraHDR JPEG format. We're working on AVIF support for UltraHDR as well, so stay tuned.

In addition, Android 16 implements additional parameters in UltraHDR from the ISO 21496-1 draft standard, including the ability to get and set the colorspace that gainmap math should be applied in, as well as support for HDR encoded base images with SDR gainmaps.

Gráficos

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

Efeitos gráficos personalizados com AGSL

Android 16 adds RuntimeColorFilter and RuntimeXfermode, allowing you to author complex effects like Threshold, Sepia, and Hue Saturation and apply them to draw calls. Since Android 13, you've been able to use AGSL to create custom RuntimeShaders that extend Shader. The new API mirrors this, adding an AGSL-powered RuntimeColorFilter that extends ColorFilter, and a Xfermode effect that lets you implement AGSL-based custom compositing and blending between source and destination pixels.

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 seu app acesso aos mais recentes avanços em tecnologias de comunicação e sem fio.

Intervalo com segurança reforçada

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 de intervalo genéricas

O Android 16 inclui o novo RangingManager, que oferece maneiras de determinar a distância e o ângulo no hardware com suporte entre o dispositivo local e um dispositivo remoto. O RangingManager oferece suporte ao uso de várias tecnologias de medição, como a detecção de canal BLE, a medição baseada em RSSI BLE, a banda ultralarga e o tempo de ida e volta do Wi-Fi.

Presença do dispositivo no gerenciador de dispositivos complementares

In Android 16, new APIs are being introduced for binding your companion app service. Service will be bound when BLE is in range and Bluetooth is connected and service will be unbound when BLE is out of range or Bluetooth is disconnected. App will receives a new 'onDevicePresenceEvent()' callback based on various of DevicePresenceEvent. More details can be found in 'startObservingDevicePresence(ObservingDevicePresenceRequest)'.

Mídia

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

Melhorias no seletor de fotos

The photo picker provides a safe, built-in way for users to grant your app access to selected images and videos from both local and cloud storage, instead of their entire media library. Using a combination of Modular System Components through Google System Updates and Google Play services, it's supported back to Android 4.4 (API level 19). Integration requires just a few lines of code with the associated Android Jetpack library.

Android 16 includes the following improvements to the photo picker:

• Embedded photo picker: New APIs that enable apps to embed the photo picker into their view hierarchy. This allows it to feel like a more integrated part of the app while still leveraging the process isolation that allows users to select media without the app needing overly broad permissions. To maximize compatibility across platform versions and simplify your integration, you'll want to use the forthcoming Android Jetpack library if you want to integrate the embedded photo picker.
• Cloud search in photo picker: New APIs that enable searching from the cloud media provider for the Android photo picker. Search functionality in the photo picker is coming soon.

Vídeo profissional avançado

O Android 16 apresenta suporte ao codec Advanced Professional Video (APV, na sigla em inglês), que foi projetado para ser usado em gravação de vídeo e pós-produção de alta qualidade de nível profissional.

O padrão de codec APV tem os seguintes recursos:

• Qualidade de vídeo sem perdas perceptível (próxima da qualidade de vídeo bruto)
• Baixa complexidade e codificação intra-frame com alto throughput (sem previsão de domínio de pixels) para melhor suporte a fluxos de trabalho de edição
• Suporte a um intervalo de taxa de bits alto de até alguns Gbps para conteúdo de resolução 2K, 4K e 8K, ativado por um esquema de codificação de entropia leve
• Dividir o frame em blocos para conteúdo imersivo e ativar a codificação e decodificação paralelas
• Suporte a vários formatos de amostragem de cromatismo e profundidades de bits
• Suporte a várias decodificações e recodificações sem degradação severa da qualidade visual
• Oferecer suporte a vídeos com várias visualizações e vídeos auxiliares, como profundidade, Alfa e visualização
• Suporte a HDR10/10+ e metadados definidos pelo usuário

Uma implementação de referência do APV é fornecida pelo projeto OpenAPV. O Android 16 vai implementar suporte ao perfil APV 422-10, que oferece amostragem de cores YUV 422 com codificação de 10 bits e para taxas de bits de destino de até 2 Gbps.

Privacidade

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

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

Android 16 incorporates the latest version of the Privacy Sandbox on Android, part of our ongoing work to develop technologies where users know their privacy is protected. Our website has more about the Privacy Sandbox on Android developer beta program to help you get started. Check out the SDK Runtime which allows SDKs to run in a dedicated runtime environment separate from the app they are serving, providing stronger safeguards around user data collection and sharing.

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 dispositivos

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

Estrutura padronizada de qualidade de imagem e áudio para TVs

The new MediaQuality package in Android 16 exposes a set of standardized APIs for access to audio and picture profiles and hardware-related settings. This allows streaming apps to query profiles and apply them to media dynamically:

• Movies mastered with a wider dynamic range require greater color accuracy to see subtle details in shadows and adjust to ambient light, so a profile that prefers color accuracy over brightness may be appropriate.
• Live sporting events are often mastered with a narrow dynamic range, but are often watched in daylight, so a profile that preferences brightness over color accuracy can give better results.
• Fully interactive content wants minimal processing to reduce latency, and wants higher frame rates, which is why many TV's ship with a game profile.

The API allows apps to switch between profiles and users to enjoy tuning supported TVs to best suit their content.

Internacionalização

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

Texto vertical

O Android 16 adiciona suporte de baixo nível para renderização e medição de texto verticalmente para oferecer suporte básico de escrita vertical para desenvolvedores de bibliotecas. Isso é especialmente útil para idiomas como o japonês, que costumam usar sistemas de escrita vertical. Uma nova flag, VERTICAL_TEXT_FLAG, foi adicionada à classe Paint. Quando essa flag é definida usando Paint.setFlags, as APIs de medição de texto do Paint vão informar avanços verticais em vez de horizontais, e Canvas vai desenhar o texto verticalmente.

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 medidas

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.