Android 15 offre aux développeurs de nouvelles fonctionnalités et API de qualité. Les sections suivantes récapitulent ces fonctionnalités pour vous aider à démarrer avec les API associées.
Pour obtenir une liste détaillée des nouvelles API, des API modifiées et supprimées, consultez le rapport de différences des API. Pour en savoir plus sur les nouvelles API, consultez la documentation de référence des API Android. Les nouvelles API sont mises en évidence pour plus de visibilité. En outre, pour en savoir plus sur les domaines dans lesquels les modifications de la plate-forme peuvent affecter vos applications, consultez les modifications de comportement qui affectent les applications qui affectent les applications lorsqu'elles ciblent Android 15 et les modifications de comportement qui affectent toutes les applications, quel que soit letargetSdkVersion
.
Appareil photo et contenus multimédias
Android 15 inclut diverses fonctionnalités qui améliorent l'expérience de l'appareil photo et des contenus multimédias, et qui vous donnent accès à des outils et du matériel pour aider les créateurs à donner vie à leur vision sur Android.
Pour en savoir plus sur les dernières fonctionnalités et solutions pour les développeurs pour les appareils photo et les contenus multimédias Android, regardez la vidéo Concevoir des expériences photo et multimédias Android modernes de la conférence Google I/O.
Amplification par faible luminosité
Android 15 introduces Low Light Boost, a new auto-exposure mode available to both Camera 2 and the night mode camera extension. Low Light Boost adjusts the exposure of the Preview stream in low-light conditions. This is different from how the night mode camera extension creates still images, because night mode combines a burst of photos to create a single, enhanced image. While night mode works very well for creating a still image, it can't create a continuous stream of frames, but Low Light Boost can. Thus, Low Light Boost enables new camera capabilities, such as:
- Providing an enhanced image preview, so users are better able to frame their low-light pictures
- Scanning QR codes in low light
If you enable Low Light Boost, it automatically turns on when there's a low light level, and turns off when there's more light.
Apps can record off the Preview stream in low-light conditions to save a brightened video.
For more information, see Low Light Boost.
Commandes de caméra intégrées à l'application
Android 15 adds a new extension for more control over the camera hardware and its algorithms on supported devices:
- Advanced flash strength adjustments enabling precise control of flash
intensity in both
SINGLE
andTORCH
modes while capturing images.
Contrôle de la marge HDR
Android 15 chooses HDR headroom that is appropriate for the underlying device
capabilities and bit-depth of the panel. For pages that have lots of SDR
content, such as a messaging app displaying a single HDR thumbnail, this
behavior can end up adversely influencing the perceived brightness of the SDR
content. Android 15 lets you control the HDR headroom with
setDesiredHdrHeadroom
to strike a balance between SDR
and HDR content.
![](https://developer.android.google.cn/static/about/versions/15/images/hdr-headroom.png?authuser=1&hl=fr)
Contrôle du volume
Android 15 introduces support for the CTA-2075 loudness standard to help you avoid audio loudness inconsistencies and ensure users don't have to constantly adjust volume when switching between content. The system leverages known characteristics of the output devices (headphones and speaker) along with loudness metadata available in AAC audio content to intelligently adjust the audio loudness and dynamic range compression levels.
To enable this feature, you need to ensure loudness metadata is available in
your AAC content and enable the platform feature in your app. For this, you
instantiate a LoudnessCodecController
object by
calling its create factory method with the audio
session ID from the associated AudioTrack
; this
automatically starts applying audio updates. You can pass an
OnLoudnessCodecUpdateListener
to modify or filter
loudness parameters before they are applied on the
MediaCodec
.
// Media contains metadata of type MPEG_4 OR MPEG_D
val mediaCodec = …
val audioTrack = AudioTrack.Builder()
.setSessionId(sessionId)
.build()
...
// Create new loudness controller that applies the parameters to the MediaCodec
try {
val lcController = LoudnessCodecController.create(mSessionId)
// Starts applying audio updates for each added MediaCodec
}
AndroidX media3 ExoPlayer will also be updated to use the
LoudnessCodecController
APIs for a seamless app integration.
Appareils MIDI 2.0 virtuels
Android 13 added support for connecting to MIDI 2.0 devices using USB, which communicate using Universal MIDI Packets (UMP). Android 15 extends UMP support to virtual MIDI apps, enabling composition apps to control synthesizer apps as a virtual MIDI 2.0 device just like they would with an USB MIDI 2.0 device.
Décodage logiciel AV1 plus efficace
dav1d, le décodeur logiciel AV1 populaire de VideoLAN est désormais disponible pour les appareils Android qui ne sont pas compatibles avec le décodage AV1 sur le matériel. Il est jusqu'à trois fois plus performant que l'ancien décodeur logiciel AV1, ce qui permet à davantage d'utilisateurs de lire des contenus HD AV1, y compris sur certains appareils de niveau inférieur ou supérieur.
Pour l'instant, votre application doit accepter d'utiliser dav1d en l'appelant avec le nom "c2.android.av1-dav1d.decoder"
. dav1d deviendra le décodeur logiciel AV1 par défaut lors d'une mise à jour ultérieure. Cette prise en charge est standardisée et rétroportée sur les appareils Android 11 qui reçoivent les mises à jour du système Google Play.
Productivité et outils des développeurs
Bien que l'essentiel de nos efforts pour améliorer votre productivité soit axé sur des outils tels qu'Android Studio, Jetpack Compose et les bibliothèques Android Jetpack, nous cherchons toujours des moyens de réaliser plus facilement votre vision sur la plate-forme.
Mises à jour OpenJDK 17
Android 15 poursuit le travail d'actualisation des bibliothèques principales d'Android pour s'aligner sur les fonctionnalités des dernières versions d'OpenJDK LTS.
Les principales fonctionnalités et améliorations suivantes sont incluses:
- Améliorations de la qualité de vie concernant les tampons NIO
- Flux
- Méthodes
math
etstrictmath
supplémentaires - Mises à jour de packages
util
, y compriscollection
,map
etset
- Assistance
ByteBuffer
àDeflater
- Mises à jour de sécurité, telles que
X500PrivateCredential
et mises à jour de clés de sécurité
Ces API sont mises à jour sur plus d'un milliard d'appareils équipés d'Android 12 (niveau d'API 31) ou version ultérieure via les mises à jour du système Google Play afin que vous puissiez cibler les dernières fonctionnalités de programmation.
Améliorations apportées aux PDF
Android 15 apporte des améliorations substantielles aux API PdfRenderer
. Les applications peuvent intégrer des fonctionnalités avancées telles que l'affichage de fichiers protégés par un mot de passe, les annotations, la modification de formulaire, la recherche et la sélection avec copie. Les optimisations linéarisées des PDF sont compatibles pour accélérer l'affichage des PDF en local et réduire l'utilisation des ressources.
![](https://developer.android.google.cn/static/about/versions/15/images/pdf-rendering.png?authuser=1&hl=fr)
PdfRenderer
a été déplacé vers un module qui peut être mis à jour à l'aide des mises à jour du système Google Play indépendamment de la version de la plate-forme. Nous acceptons ces modifications à nouveau sur Android 11 (niveau d'API 30) en créant une version de surface d'API compatible antérieure à Android 15, appelée PdfRendererPreV
.
Vos commentaires sur les améliorations que nous avons apportées à la surface de l'API PdfRenderer
nous intéressent, et nous prévoyons de faciliter l'intégration de ces API dans votre application avec une prochaine bibliothèque Android Jetpack.
Améliorations apportées au changement automatique de langue
Android 14 added on-device, multi-language recognition in audio with automatic
switching between languages, but this can cause words to get dropped,
especially when languages switch with less of a pause between the two
utterances. Android 15 adds additional controls to help apps tune this switching
to their use case.
EXTRA_LANGUAGE_SWITCH_INITIAL_ACTIVE_DURATION_TIME_MILLIS
confines the automatic switching to the beginning of the audio session, while
EXTRA_LANGUAGE_SWITCH_MATCH_SWITCHES
deactivates the
language switching after a defined number of switches. These options are
particularly useful if you expect that there will be a single language spoken
during the session that should be autodetected.
Amélioration de l'API OpenType Variable Font
Android 15 improves the usability of the OpenType variable font. You can now
create a FontFamily
instance from a variable font without specifying
weight axes with the buildVariableFamily
API. The text renderer overrides
the value of wght
axis to match the displaying text.
Using the new API, this simplifies the code for creating a Typeface
considerably:
Kotlin
val newTypeface = Typeface.CustomFallbackBuilder( FontFamily.Builder( Font.Builder(assets, "RobotoFlex.ttf").build()) .buildVariableFamily()) .build()
Java
Typeface newTypeface = Typeface.CustomFallbackBuilder( new FontFamily.Builder( new Font.Builder(assets, "RobotoFlex.ttf").build()) .buildVariableFamily()) .build();
Previously, to create the same Typeface
, you would need much more code:
Kotlin
val oldTypeface = Typeface.CustomFallbackBuilder( FontFamily.Builder( Font.Builder(assets, "RobotoFlex.ttf") .setFontVariationSettings("'wght' 400") .setWeight(400) .build()) .addFont( Font.Builder(assets, "RobotoFlex.ttf") .setFontVariationSettings("'wght' 100") .setWeight(100) .build() ) .addFont( Font.Builder(assets, "RobotoFlex.ttf") .setFontVariationSettings("'wght' 200") .setWeight(200) .build() ) .addFont( Font.Builder(assets, "RobotoFlex.ttf") .setFontVariationSettings("'wght' 300") .setWeight(300) .build() ) .addFont( Font.Builder(assets, "RobotoFlex.ttf") .setFontVariationSettings("'wght' 500") .setWeight(500) .build() ) .addFont( Font.Builder(assets, "RobotoFlex.ttf") .setFontVariationSettings("'wght' 600") .setWeight(600) .build() ) .addFont( Font.Builder(assets, "RobotoFlex.ttf") .setFontVariationSettings("'wght' 700") .setWeight(700) .build() ) .addFont( Font.Builder(assets, "RobotoFlex.ttf") .setFontVariationSettings("'wght' 800") .setWeight(800) .build() ) .addFont( Font.Builder(assets, "RobotoFlex.ttf") .setFontVariationSettings("'wght' 900") .setWeight(900) .build() ).build() ).build()
Java
Typeface oldTypeface = new Typeface.CustomFallbackBuilder( new FontFamily.Builder( new Font.Builder(assets, "RobotoFlex.ttf") .setFontVariationSettings("'wght' 400") .setWeight(400) .build() ) .addFont( new Font.Builder(assets, "RobotoFlex.ttf") .setFontVariationSettings("'wght' 100") .setWeight(100) .build() ) .addFont( new Font.Builder(assets, "RobotoFlex.ttf") .setFontVariationSettings("'wght' 200") .setWeight(200) .build() ) .addFont( new Font.Builder(assets, "RobotoFlex.ttf") .setFontVariationSettings("'wght' 300") .setWeight(300) .build() ) .addFont( new Font.Builder(assets, "RobotoFlex.ttf") .setFontVariationSettings("'wght' 500") .setWeight(500) .build() ) .addFont( new Font.Builder(assets, "RobotoFlex.ttf") .setFontVariationSettings("'wght' 600") .setWeight(600) .build() ) .addFont( new Font.Builder(assets, "RobotoFlex.ttf") .setFontVariationSettings("'wght' 700") .setWeight(700) .build() ) .addFont( new Font.Builder(assets, "RobotoFlex.ttf") .setFontVariationSettings("'wght' 800") .setWeight(800) .build() ) .addFont( new Font.Builder(assets, "RobotoFlex.ttf") .setFontVariationSettings("'wght' 900") .setWeight(900) .build() ) .build() ).build();
Here's an example of how a Typeface
created with both the old and new APIs
renders:
In this example, the Typeface
created with the old API doesn't have the
capability to create accurate font weights for the 350, 450, 550 and 650
Font
instances, so the renderer falls back to the closest weight. So in
this case, 300 is rendered instead of 350, 400 is rendered instead of 450, and
so on. By contrast, the Typeface
created with the new APIs dynamically creates
a Font
instance for a given weight, so accurate weights are rendered for 350,
450, 550, and 650 as well.
Commandes de saut de ligne précises
Starting in Android 15, a TextView
and the underlying
line breaker can preserve the given portion of text in the same line to improve
readability. You can take advantage of this line break customization by using
the <nobreak>
tag in string resources or
createNoBreakSpan
. Similarly, you can preserve words from
hyphenation by using the <nohyphen>
tag or
createNoHyphenationSpan
.
For example, the following string resource doesn't include a line break, and renders with the text "Pixel 8 Pro." breaking in an undesirable place:
<resources>
<string name="pixel8pro">The power and brains behind Pixel 8 Pro.</string>
</resources>
In contrast, this string resource includes the <nobreak>
tag, which wraps the
phrase "Pixel 8 Pro." and prevents line breaks:
<resources>
<string name="pixel8pro">The power and brains behind <nobreak>Pixel 8 Pro.</nobreak></string>
</resources>
The difference in how these strings are rendered is shown in the following images:
![](https://developer.android.google.cn/static/about/versions/15/images/line-breaks-none.png?authuser=1&hl=fr)
<nobreak>
tag.![](https://developer.android.google.cn/static/about/versions/15/images/line-breaks-included.png?authuser=1&hl=fr)
<nobreak>
tag.Archivage des applications
L'année dernière, Android et Google Play ont annoncé la compatibilité avec l'archivage des applications, qui permet aux utilisateurs de libérer de l'espace en supprimant partiellement de l'appareil les applications peu utilisées et publiées à l'aide d'Android App Bundle sur Google Play. Android 15 prend désormais en charge l'archivage et le désarchivage d'applications au niveau de l'OS, ce qui permet à toutes les plates-formes de téléchargement d'applications de les implémenter plus facilement.
Les applications disposant de l'autorisation REQUEST_DELETE_PACKAGES
peuvent appeler la méthode PackageInstaller
requestArchive
pour demander l'archivage d'un package d'application installé, ce qui supprime l'APK et tous les fichiers mis en cache, mais conserve les données utilisateur. Les applications archivées sont renvoyées en tant qu'applications affichables via les API LauncherApps
. Les utilisateurs verront un traitement dans l'interface utilisateur indiquant que ces applications sont archivées. Si un utilisateur appuie sur une application archivée, le programme d'installation responsable reçoit une demande de désarchivage de celle-ci, et le processus de restauration peut être surveillé par la diffusion ACTION_PACKAGE_ADDED
.
Graphismes
Android 15 apporte les dernières améliorations graphiques, y compris ANGLE et des ajouts au système graphique Canvas.
Moderniser l'accès aux GPU d'Android
Android hardware has evolved quite a bit from the early days where the core OS would run on a single CPU and GPUs were accessed using APIs based on fixed-function pipelines. The Vulkan® graphics API has been available in the NDK since Android 7.0 (API level 24) with a lower-level abstraction that better reflects modern GPU hardware, scales better to support multiple CPU cores, and offers reduced CPU driver overhead — leading to improved app performance. Vulkan is supported by all modern game engines.
Vulkan is Android's preferred interface to the GPU. Therefore, Android 15 includes ANGLE as an optional layer for running OpenGL® ES on top of Vulkan. Moving to ANGLE will standardize the Android OpenGL implementation for improved compatibility, and, in some cases, improved performance. You can test out your OpenGL ES app stability and performance with ANGLE by enabling the developer option in Settings -> System -> Developer Options -> Experimental: Enable ANGLE on Android 15.
The Android ANGLE on Vulkan roadmap
![Roadmap of upcoming changes to the Android GPU APIs.](https://developer.android.google.cn/static/about/versions/15/images/angle-vulkan-roadmap.png?authuser=1&hl=fr)
As part of streamlining our GPU stack, going forward we will be shipping ANGLE as the GL system driver on more new devices, with the future expectation that OpenGL/ES will be only available through ANGLE. That being said, we plan to continue support for OpenGL ES on all devices.
Recommended next steps
Use the developer options to select the ANGLE driver for OpenGL ES and test your app. For new projects, we strongly encourage using Vulkan for C/C++.
Améliorations apportées à Canvas
Android 15 continues our modernization of Android's Canvas graphics system with new capabilities:
Matrix44
provides a 4x4 matrix for transforming coordinates that should be used when you want to manipulate the canvas in 3D.clipShader
intersects the current clip with the specified shader, whileclipOutShader
sets the clip to the difference of the current clip and the shader, each treating the shader as an alpha mask. This supports the drawing of complex shapes efficiently.
Performances et batterie
Android continue de vous aider à améliorer les performances et la qualité de vos applications. Android 15 introduit de nouvelles API qui permettent d'exécuter les tâches de votre application plus efficacement, d'optimiser ses performances et de recueillir des insights sur vos applications.
Pour découvrir les bonnes pratiques d'optimisation de la batterie, le débogage du réseau et la consommation d'énergie, ainsi que la façon dont nous améliorons l'efficacité de la batterie des tâches en arrière-plan dans Android 15 et les versions récentes d'Android, consultez l'article Améliorer l'efficacité de la batterie des tâches en arrière-plan sur Android dans la conférence Google I/O.
API ApplicationStartInfo
在以前的 Android 版本中,应用启动有点神秘。在应用中确定应用是从冷状态、温状态还是热状态开始的过程很难确定。此外,我们也很难知道您的应用在不同发布阶段所用的时间:创建进程分支、调用 onCreate
、绘制第一帧等。在实例化 Application
类时,您无法得知应用是从广播、content provider、作业、备份、启动完成、闹钟还是 Activity
启动的。
Android 15 上的 ApplicationStartInfo
API 可提供所有这些功能以及更多其他功能。您甚至可以选择将自己的时间戳添加到流程中,以便在一个位置收集时间数据。除了收集指标之外,您还可以使用 ApplicationStartInfo
直接优化应用启动;例如,当应用因广播而启动时,您可以避免在 Application
类中实例化界面相关库的高成本。
Informations détaillées sur la taille de l'application
Since Android 8.0 (API level 26), Android has included the
StorageStats.getAppBytes
API that summarizes the installed
size of an app as a single number of bytes, which is a sum of the APK size, the
size of files extracted from the APK, and files that were generated on the
device such as ahead-of-time (AOT) compiled code. This number is not very
insightful in terms of how your app is using storage.
Android 15 adds the
StorageStats.getAppBytesByDataType([type])
API, which lets
you get insight into how your app is using up all that space, including APK file
splits, AOT and speedup related code, dex metadata, libraries, and guided
profiles.
Profilage géré par l'application
Android 15 includes the all-new ProfilingManager
class, which lets you
collect profiling information from within your app. We're planning to wrap this
with an Android Jetpack API that will simplify construction of profiling
requests, but the core API will allow the collection of heap dumps, heap
profiles, stack sampling, and more. It provides a callback to your app with a
supplied tag to identify the output file, which is delivered to your app's files
directory. The API does rate limiting to minimize the performance impact.
Améliorations de la base de données SQLite
Android 15 introduces new SQLite APIs that expose advanced features from the underlying SQLite engine that target specific performance issues that can manifest in apps.
Developers should consult best practices for SQLite performance to get the most out of their SQLite database, especially when working with large databases or when running latency-sensitive queries.
- Read-only deferred transactions: when issuing transactions that are
read-only (don't include write statements), use
beginTransactionReadOnly()
andbeginTransactionWithListenerReadOnly(SQLiteTransactionListener)
to issue read-onlyDEFERRED
transactions. Such transactions can run concurrently with each other, and if the database is in WAL mode, they can run concurrently withIMMEDIATE
orEXCLUSIVE
transactions. - Row counts and IDs: new APIs were added to retrieve the count of changed
rows or the last inserted row ID without issuing an additional query.
getLastChangedRowCount()
returns the number of rows that were inserted, updated, or deleted by the most recent SQL statement within the current transaction, whilegetTotalChangedRowCount()
returns the count on the current connection.getLastInsertRowId()
returns therowid
of the last row to be inserted on the current connection. - Raw statements: issue a raw SQlite statement, bypassing convenience wrappers and any additional processing overhead that they may incur.
Mises à jour du framework de performances dynamiques Android
Android 15 继续投资开发 Android 动态性能框架 (ADPF),这是一组 API,可让游戏和性能密集型应用更直接地与 Android 设备的电源和散热系统进行互动。在受支持的设备上,Android 15 将添加新的 ADPF 功能:
- 适用于提示会话的节能模式,用于指明其关联的线程应该优先考虑节能而非性能,非常适合长时间运行的后台工作负载。
- 可以在提示会话中报告 GPU 和 CPU 的运行时长,从而使系统能够同时调整 CPU 和 GPU 频率,以便更好地满足工作负载需求。
- 热余量阈值,用于根据余量预测来解释可能的热节流状态。
如需详细了解如何在应用和游戏中使用 ADPF,请参阅相关文档。
Confidentialité
Android 15 inclut diverses fonctionnalités qui aident les développeurs d'applications à protéger la confidentialité des utilisateurs.
Détection de l'enregistrement d'écran
Android 15 adds support for apps to detect that they are being recorded. A callback is invoked whenever the app transitions between being visible or invisible within a screen recording. An app is considered visible if activities owned by the registering process's UID are being recorded. This way, if your app is performing a sensitive operation, you can inform the user that they're being recorded.
val mCallback = Consumer<Int> { state ->
if (state == SCREEN_RECORDING_STATE_VISIBLE) {
// We're being recorded
} else {
// We're not being recorded
}
}
override fun onStart() {
super.onStart()
val initialState =
windowManager.addScreenRecordingCallback(mainExecutor, mCallback)
mCallback.accept(initialState)
}
override fun onStop() {
super.onStop()
windowManager.removeScreenRecordingCallback(mCallback)
}
Fonctionnalités IntentFilter étendues
Android 15 builds in support for more precise Intent
resolution through
UriRelativeFilterGroup
, which contains a set of
UriRelativeFilter
objects that form a set of Intent
matching rules that must each be satisfied, including URL query parameters, URL
fragments, and blocking or exclusion rules.
These rules can be defined in the AndroidManifest
XML file with the new
<uri-relative-filter-group>
tag, which can optionally include an
android:allow
tag. These tags can contain <data>
tags that use existing data
tag attributes as well as the new android:query
and android:fragment
attributes.
Here's an example of the AndroidManifest
syntax:
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:scheme="http" />
<data android:scheme="https" />
<data android:domain="astore.com" />
<uri-relative-filter-group>
<data android:pathPrefix="/auth" />
<data android:query="region=na" />
</uri-relative-filter-group>
<uri-relative-filter-group android:allow="false">
<data android:pathPrefix="/auth" />
<data android:query="mobileoptout=true" />
</uri-relative-filter-group>
<uri-relative-filter-group android:allow="false">
<data android:pathPrefix="/auth" />
<data android:fragmentPrefix="faq" />
</uri-relative-filter-group>
</intent-filter>
Espace privé
Private space lets users create a separate space on their device where they can keep sensitive apps away from prying eyes, under an additional layer of authentication. The private space uses a separate user profile. The user can choose to use the device lock or a separate lock factor for the private space.
Apps in the private space show up in a separate container in the launcher, and are hidden from the recents view, notifications, settings, and from other apps when the private space is locked. User-generated and downloaded content (such as media or files) and accounts are separated between the private space and the main space. The system sharesheet and the photo picker can be used to give apps access to content across spaces when the private space is unlocked.
Users can't move existing apps and their data into the private space. Instead, users select an install option in the private space to install an app using whichever app store they prefer. Apps in the private space are installed as separate copies from any apps in the main space (new copies of the same app).
When a user locks the private space, the profile is stopped. While the profile is stopped, apps in the private space are no longer active and can't perform foreground or background activities, including showing notifications.
We recommend that you test your app with private space to make sure your app works as expected, especially if your app falls into one of the following categories:
- Apps with logic for work profiles that assumes that any installed copies of their app that aren't in the main profile are in the work profile.
- Medical apps
- Launcher apps
- App store apps
Interroger la dernière sélection effectuée par l'utilisateur pour accéder aux photos sélectionnées
Les applications peuvent désormais mettre en surbrillance uniquement les photos et vidéos sélectionnées les plus récemment lorsqu'un accès partiel aux autorisations multimédias est accordé. Cette fonctionnalité peut améliorer l'expérience utilisateur pour les applications qui demandent fréquemment l'accès aux photos et aux vidéos. Pour utiliser cette fonctionnalité dans votre application, activez l'argument QUERY_ARG_LATEST_SELECTION_ONLY
lorsque vous interrogez MediaStore
via ContentResolver
.
Kotlin
val externalContentUri = MediaStore.Files.getContentUri("external") val mediaColumns = arrayOf( FileColumns._ID, FileColumns.DISPLAY_NAME, FileColumns.MIME_TYPE, ) val queryArgs = bundleOf( // Return only items from the last selection (selected photos access) QUERY_ARG_LATEST_SELECTION_ONLY to true, // Sort returned items chronologically based on when they were added to the device's storage QUERY_ARG_SQL_SORT_ORDER to "${FileColumns.DATE_ADDED} DESC", QUERY_ARG_SQL_SELECTION to "${FileColumns.MEDIA_TYPE} = ? OR ${FileColumns.MEDIA_TYPE} = ?", QUERY_ARG_SQL_SELECTION_ARGS to arrayOf( FileColumns.MEDIA_TYPE_IMAGE.toString(), FileColumns.MEDIA_TYPE_VIDEO.toString() ) )
Java
Uri externalContentUri = MediaStore.Files.getContentUri("external"); String[] mediaColumns = { FileColumns._ID, FileColumns.DISPLAY_NAME, FileColumns.MIME_TYPE }; Bundle queryArgs = new Bundle(); queryArgs.putBoolean(MediaStore.QUERY_ARG_LATEST_SELECTION_ONLY, true); queryArgs.putString(MediaStore.QUERY_ARG_SQL_SORT_ORDER, FileColumns.DATE_ADDED + " DESC"); queryArgs.putString(MediaStore.QUERY_ARG_SQL_SELECTION, FileColumns.MEDIA_TYPE + " = ? OR " + FileColumns.MEDIA_TYPE + " = ?"); queryArgs.putStringArray(MediaStore.QUERY_ARG_SQL_SELECTION_ARGS, new String[] { String.valueOf(FileColumns.MEDIA_TYPE_IMAGE), String.valueOf(FileColumns.MEDIA_TYPE_VIDEO) });
Privacy Sandbox sur Android
Android 15 includes the latest Android Ad Services extensions, incorporating the latest version of the Privacy Sandbox on Android. This addition is part of our work to develop new technologies that improve user privacy and enable effective, personalized advertising experiences for mobile apps. Our privacy sandbox page has more information about the Privacy Sandbox on Android developer preview and beta programs to help you get started.
Santé Connect
Android 15 integrates the latest extensions around Health Connect by Android, a secure and centralized platform to manage and share app-collected health and fitness data. This update adds support for new data types across fitness, nutrition, skin temperature, training plans, and more.
Skin temperature tracking allows users to store and share more accurate temperature data from a wearable or other tracking device.
Training plans are structured workout plans to help a user achieve their fitness goals. Training plans support includes a variety of completion and performance goals:
- Completion goals around calories burned, distance, duration, repetition, and steps.
- Performance goals around as many repetitions as possible (AMRAP), cadence, heart rate, power, perceived rate of exertion, and speed.
Learn more about the latest updates to Health Connect in Android in the Building adaptable experiences with Android Health talk from Google I/O.
Partage d'écran partiel
Android 15 supports partial screen sharing so users can share or record just an
app window rather than the entire device screen. This feature, first enabled in
Android 14 QPR2, includes
MediaProjection
callbacks that allow your app
to customize the partial screen sharing experience. Note that for apps targeting
Android 14 (API level 34) or higher,
user consent is now required for each
MediaProjection
capture session.
Expérience utilisateur et UI du système
Android 15 offre aux développeurs d'applications et aux utilisateurs plus de contrôle et de flexibilité pour configurer leur appareil en fonction de leurs besoins.
Pour savoir comment utiliser les dernières améliorations d'Android 15 afin d'améliorer l'expérience utilisateur de votre application, consultez la conférence Améliorer l'expérience utilisateur de votre application Android de la conférence Google I/O.
Aperçus de widgets plus complets avec l'API Generated Previews
Before Android 15, the only way to provide widget picker previews was to specify a static image or layout resource. These previews often differ significantly from the look of the actual widget when it is placed on the home screen. Also, static resources can't be created with Jetpack Glance, so a Glance developer had to screenshot their widget or create an XML layout to have a widget preview.
Android 15 adds support for generated previews. This means that app widget
providers can generate RemoteViews
to use as the picker preview, instead
of a static resource.
![](https://developer.android.google.cn/static/about/versions/15/images/generated-previews.png?authuser=1&hl=fr)
Push API
Apps can provide generated previews through a push API. Apps can provide
previews at any point in their lifecycle, and don't receive an explicit request
from the host to provide previews. Previews are persisted in AppWidgetService
,
and hosts can request them on-demand. The following example loads an XML widget
layout resource and sets it as the preview:
AppWidgetManager.getInstance(appContext).setWidgetPreview(
ComponentName(
appContext,
SociaLiteAppWidgetReceiver::class.java
),
AppWidgetProviderInfo.WIDGET_CATEGORY_HOME_SCREEN,
RemoteViews("com.example", R.layout.widget_preview)
)
The expected flow is:
- At any time, the widget provider calls
setWidgetPreview
. The provided previews are persisted inAppWidgetService
with other provider info. setWidgetPreview
notifies hosts of an updated preview through theAppWidgetHost.onProvidersChanged
callback. In response, the widget host reloads all of its provider information.- When displaying a widget preview, the host checks
AppWidgetProviderInfo.generatedPreviewCategories
, and if the chosen category is available, callsAppWidgetManager.getWidgetPreview
to return the saved preview for this provider.
When to call setWidgetPreview
Because there is no callback to provide previews, apps can choose to send previews at any point when they are running. How often to update the preview depends on the widget's use case.
The following list describes the two main categories of preview use cases:
- Providers that show real data in their widget previews, such as personalized or recent information. These providers can set the preview once the user has signed in or has done initial configuration in their app. After this, they can set up a periodic task to update the previews at their chosen cadence. Examples of this type of widget could be a photo, calendar, weather or news widget.
- Providers that show static information in previews or quick-action widgets that don't display any data. These providers can set previews once, when the app first launches. Examples of this type of widget include a drive quick actions widget or chrome shortcuts widget.
Some providers might show static previews on the hub mode picker, but real information on the homescreen picker. These providers should follow the guidance for both of these use cases to set previews.
Picture-in-picture
Android 15 introduces new changes in Picture-in-Picture (PiP) ensuring an even smoother transition when entering into PiP mode. This will be beneficial for apps having UI elements overlaid on top of their main UI, which goes into PiP.
Developers use the onPictureInPictureModeChanged
callback to define logic
that toggles the visibility of the overlaid UI elements. This callback is
triggered when the PiP enter or exit animation is completed. Beginning in
Android 15, the PictureInPictureUiState
class includes a new state.
With this new UI state, apps targeting Android 15 will observe the
Activity#onPictureInPictureUiStateChanged
callback being invoked with
isTransitioningToPip()
as soon as the PiP animation starts. There are
many UI elements that are not relevant for the app when it is in PiP mode, for
example views or layout that include information such as suggestions, upcoming
video, ratings, and titles. When the app goes to PiP mode, use the
onPictureInPictureUiStateChanged
callback to hide these UI elements. When the
app goes to full screen mode from the PiP window, use
onPictureInPictureModeChanged
callback to unhide these elements, as shown in
the following examples:
override fun onPictureInPictureUiStateChanged(pipState: PictureInPictureUiState) {
if (pipState.isTransitioningToPip()) {
// Hide UI elements
}
}
override fun onPictureInPictureModeChanged(isInPictureInPictureMode: Boolean) {
if (isInPictureInPictureMode) {
// Unhide UI elements
}
}
This quick visibility toggle of irrelevant UI elements (for a PiP window) helps ensure a smoother and flicker-free PiP enter animation.
Amélioration des règles Ne pas déranger
AutomaticZenRule
lets apps customize Attention
Management (Do Not Disturb) rules and decide when to activate or deactivate
them. Android 15 greatly enhances these rules with the goal of improving the
user experience. The following enhancements are included:
- Adding types to
AutomaticZenRule
, allowing the system to apply special treatment to some rules. - Adding an icon to
AutomaticZenRule
, helping to make the modes be more recognizable. - Adding a
triggerDescription
string toAutomaticZenRule
that describes the conditions on which the rule should become active for the user. - Added
ZenDeviceEffects
toAutomaticZenRule
, allowing rules to trigger things like grayscale display, night mode, or dimming the wallpaper.
Définir VibrationEffect pour les canaux de notification
Android 15 permet de définir des vibrations riches pour les notifications entrantes par canal à l'aide de NotificationChannel.setVibrationEffect
. Vos utilisateurs peuvent ainsi distinguer les différents types de notifications sans avoir à regarder leur appareil.
Grands écrans et facteurs de forme
Android 15 permet à vos applications d'exploiter tout le potentiel des facteurs de forme Android, y compris les grands écrans, les appareils pliables et les appareils pliables.
Amélioration du mode multitâche sur grand écran
Android 15 offre aux utilisateurs de meilleures façons de gérer plusieurs tâches en même temps sur les appareils à grand écran. Par exemple, les utilisateurs peuvent enregistrer leurs combinaisons d'applications d'écran partagé préférées pour y accéder rapidement et épingler la barre des tâches à l'écran pour passer rapidement d'une application à l'autre. Il est donc plus important que jamais de s'assurer que votre application est adaptative.
Google I/O propose des sessions sur la création d'applications Android adaptatives et la création d'une UI avec la bibliothèque adaptative Material 3 qui peuvent vous aider. Notre documentation contient plus d'informations pour vous aider à concevoir des applications pour les grands écrans.
Prise en charge de l'écran de couverture
您的应用可以声明一项属性,Android 15 会使用该属性将您的 Application
或 Activity
呈现在支持的可翻转设备的小封面屏幕上。这些屏幕太小,无法被视为 Android 应用的兼容目标,但您的应用可以选择支持这些屏幕,从而让您的应用可在更多位置使用。
Connectivité
Android 15 met à jour la plate-forme pour permettre à votre application d'accéder aux dernières avancées en matière de communication et de technologies sans fil.
Compatibilité satellite
Android 15 continues to extend platform support for satellite connectivity and includes some UI elements to ensure a consistent user experience across the satellite connectivity landscape.
Apps can use ServiceState.isUsingNonTerrestrialNetwork()
to
detect when a device is connected to a satellite, giving them more awareness of
why full network services might be unavailable. Additionally, Android 15
provides support for SMS and MMS apps as well as preloaded RCS apps to use
satellite connectivity for sending and receiving messages.
![](https://developer.android.google.cn/static/about/versions/15/images/satellite-notification.png?authuser=1&hl=fr)
Expérience NFC plus fluide
Android 15 is working to make the tap to pay experience more seamless and
reliable while continuing to support Android's robust NFC app ecosystem. On
supported devices, apps can request the NfcAdapter
to enter
observe mode, where the device listens but doesn't respond to NFC
readers, sending the app's NFC service PollingFrame
objects to process. The PollingFrame
objects can be used to auth
ahead of the first communication to the NFC reader, allowing for a one tap
transaction in many cases.
In addition, apps can now register a filter on supported devices so they can be notified of polling loop activity, which allows for smooth operation with multiple NFC-aware applications.
Rôle Wallet
Android 15 引入了一个新的钱包角色,可让您与用户首选的钱包应用更紧密地集成。此角色取代了 NFC 默认的感应式付款设置。用户可以通过导航到设置 > 应用 > 默认应用来管理 Google 钱包角色持有者。
在为付款类别中注册的 AID 路由 NFC 触碰时,可使用“钱包”角色。除非已在前台运行为同一 AID 注册的另一个应用,否则点按操作会始终转到钱包角色持有者。
此角色还可用于确定钱包“快速访问”功能块在启用后应转到的位置。当角色设置为“无”时,“快速访问”功能块不可用,并且付款类别 NFC 触碰仅会传送到前台应用。
Sécurité
Android 15 vous aide à renforcer la sécurité de votre application, à protéger ses données, et à offrir aux utilisateurs plus de transparence et de contrôle sur leurs données. Pour en savoir plus sur ce que nous faisons pour améliorer la protection des utilisateurs et protéger votre application contre les nouvelles menaces, consultez l'entretien Protéger la sécurité des utilisateurs sur Android de Google I/O.
Intégrer le Gestionnaire d'identifiants à la saisie automatique
Starting with Android 15, developers can link specific views like username or password fields with Credential Manager requests, making it easier to provide a tailored user experience during the sign-in process. When the user focuses on one of these views, a corresponding request is sent to Credential Manager. The resulting credentials are aggregated across providers and displayed in autofill fallback UIs, such as inline suggestions or drop-down suggestions. The Jetpack androidx.credentials library is the preferred endpoint for developers to use and will soon be available to further enhance this feature in Android 15 and higher.
Intégrez l'inscription et la connexion en un seul geste avec les requêtes biométriques
Credential Manager integrates biometric prompts into the credential creation and sign-in processes, eliminating the need for providers to manage biometric prompts. As a result, credential providers only need to focus on the results of the create and get flows, augmented with the biometric flow result. This simplified process creates a more efficient and streamlined credential creation and retrieval process.
Gestion des clés pour le chiffrement de bout en bout
We are introducing the E2eeContactKeysManager
in Android 15, which
facilitates end-to-end encryption (E2EE) in your Android apps by providing an
OS-level API for the storage of cryptographic public keys.
The E2eeContactKeysManager
is designed to integrate with the platform
contacts app to give users a centralized way to manage and verify their
contacts' public keys.
Vérification des autorisations sur les URI de contenu
Android 15 引入了一组可对内容 URI 执行权限检查的新 API:
Context.checkContentUriPermissionFull
:这会对内容 URI 执行完整的权限检查。Activity
清单属性requireContentUriPermissionFromCaller
:这会在 activity 启动时,对提供的内容 URI 强制执行指定权限。Activity
调用方的ComponentCaller
类:这表示启动 activity 的应用。
Accessibilité
Android 15 ajoute des fonctionnalités qui améliorent l'accessibilité pour les utilisateurs.
Améliorer le braille
Avec Android 15, TalkBack est compatible avec les plages braille qui utilisent la norme HID via USB et le Bluetooth sécurisé.
Cette norme, tout comme celle utilisée par les souris et les claviers, aidera Android à prendre en charge une plus large gamme de plages braille au fil du temps.
Internationalisation
Android 15 ajoute des fonctionnalités qui complètent l'expérience utilisateur lorsqu'un appareil est utilisé dans différentes langues.
Police variable CJK
Starting with Android 15, the font file for Chinese, Japanese, and Korean (CJK) languages, NotoSansCJK, is now a variable font. Variable fonts open up new possibilities for creative typography in CJK languages. Designers can explore a broader range of styles and create visually striking layouts that were previously difficult or impossible to achieve.
![](https://developer.android.google.cn/static/about/versions/15/images/cjk-variable-font.png?authuser=1&hl=fr)
Justification entre les caractères
Starting with Android 15, text can be justified utilizing letter spacing by
using JUSTIFICATION_MODE_INTER_CHARACTER
. Inter-word justification was
first introduced in Android 8.0 (API level 26), and inter-character
justification provides similar capabilities for languages that use the
whitespace character for segmentation, such as Chinese, Japanese, and others.
![](https://developer.android.google.cn/static/about/versions/15/images/none-japanese.png?authuser=1&hl=fr)
JUSTIFICATION_MODE_NONE
.![](https://developer.android.google.cn/static/about/versions/15/images/none-english.png?authuser=1&hl=fr)
JUSTIFICATION_MODE_NONE
.![](https://developer.android.google.cn/static/about/versions/15/images/inter-word-japanese.png?authuser=1&hl=fr)
JUSTIFICATION_MODE_INTER_WORD
.![](https://developer.android.google.cn/static/about/versions/15/images/inter-word-english.png?authuser=1&hl=fr)
JUSTIFICATION_MODE_INTER_WORD
.![](https://developer.android.google.cn/static/about/versions/15/images/inter-character-japanese.png?authuser=1&hl=fr)
JUSTIFICATION_MODE_INTER_CHARACTER
.![](https://developer.android.google.cn/static/about/versions/15/images/inter-character-english.png?authuser=1&hl=fr)
JUSTIFICATION_MODE_INTER_CHARACTER
.Configuration automatique des sauts de ligne
Android started supporting phrase-based line breaks for Japanese and Korean in
Android 13 (API level 33). However, while phrase-based line breaks improve the
readability of short lines of text, they don't work well for long lines of text.
In Android 15, apps can now apply phrase-based line breaks only for short lines
of text, using the LINE_BREAK_WORD_STYLE_AUTO
option. This option selects the best word style option for the text.
For short lines of text, phrase-based line breaks are used, functioning the same
as LINE_BREAK_WORD_STYLE_PHRASE
, as shown in the
following image:
![](https://developer.android.google.cn/static/about/versions/15/images/line-break-auto-short.png?authuser=1&hl=fr)
LINE_BREAK_WORD_STYLE_AUTO
applies phrase-based line breaks to improve the readability of the text.
This is the same as applying
LINE_BREAK_WORD_STYLE_PHRASE
.For longer lines of text, LINE_BREAK_WORD_STYLE_AUTO
uses a no
line-break word style, functioning the same as
LINE_BREAK_WORD_STYLE_NONE
, as shown in the
following image:
![](https://developer.android.google.cn/static/about/versions/15/images/line-break-auto-long.png?authuser=1&hl=fr)
LINE_BREAK_WORD_STYLE_AUTO
applies no line-break word style to improve the readability of the text.
This is the same as applying
LINE_BREAK_WORD_STYLE_NONE
.Nouvelle police hentaigana japonaise
In Android 15, a new font file for old Japanese Hiragana (known as Hentaigana) is bundled by default. The unique shapes of Hentaigana characters can add a distinctive flair to artwork or design while also helping to preserve accurate transmission and understanding of ancient Japanese documents.
![](https://developer.android.google.cn/static/about/versions/15/images/hentaigana-font.png?authuser=1&hl=fr)
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