Android 15 面向开发者引入了一些出色的功能和 API。以下部分总结了这些功能,可帮助您开始使用相关 API。
如需查看添加、修改和移除的 API 的详细列表,请参阅 API 差异报告。如需详细了解添加的 API,请访问 Android API 参考文档。对于 Android 15,请查找在 API 级别 35 中添加的 API。如需了解平台变更可能会在哪些方面影响您的应用,请务必查看会影响以 Android 15 为目标平台的应用和所有应用的 Android 15 行为变更。
摄像头和媒体
Android 15 包含多种功能,可改进相机和媒体体验,并让您可以使用工具和硬件来支持创作者在 Android 设备上实现自己的愿景。
如需详细了解 Android 媒体和相机的最新功能和开发者解决方案,请观看 Google I/O 大会上的构建现代 Android 媒体和相机体验演讲。
弱光增强
Android 15 introduces Low Light Boost, an 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 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.
应用内相机控件
Android 15 adds an 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.
HDR 余量控制
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.

响度控制
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.
虚拟 MIDI 2.0 设备
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.
更高效的 AV1 软件解码
dav1d, the popular AV1 software decoder from VideoLAN is available for Android devices that don't support AV1 decode in hardware. dav1d is up to 3x more performant than the legacy AV1 software decoder, enabling HD AV1 playback for more users, including some low and mid tier devices.
Your app needs to opt-in to using dav1d by invoking it by name
"c2.android.av1-dav1d.decoder"
. dav1d will be made the default AV1 software
decoder in a subsequent update. This support is standardized and backported to
Android 11 devices that receive Google Play system updates.
开发者工作效率和工具
虽然我们为提高开发者工作效率所做的大部分工作都集中在 Android Studio、Jetpack Compose 和 Android Jetpack 库等工具上,但我们始终在寻找各种方法,通过平台帮助您更轻松地实现愿景。
OpenJDK 17 更新
Android 15 continues the work of refreshing Android's core libraries to align with the features in the latest OpenJDK LTS releases.
The following key features and improvements are included:
- Quality-of-life improvements around NIO buffers
- Streams
- Additional
math
andstrictmath
methods util
package updates including sequencedcollection
,map
, andset
ByteBuffer
support inDeflater
- Security updates such as
X500PrivateCredential
and security key updates
These APIs are updated on over a billion devices running Android 12 (API level 31) and higher through Google Play System updates, so you can target the latest programming features.
PDF 改进
Android 15 对 PdfRenderer
API 进行了重大改进。应用可以整合呈现等高级功能
受密码保护的文件、注释、表单编辑、
searching,而 selection 则包含副本。支持线性化 PDF 优化,此功能可加快本地 PDF 查看速度并减少资源使用量。Jetpack PDF 库使用这些 API 来简化 PDF 的添加
查看功能。

PdfRenderer
已移至一个可使用 Google
Play 系统更新独立于平台版本,并且我们支持
将这些变更还原到 Android 11(API 级别 30),方法是创建兼容的
Android 15 之前版本的 API Surface,称为
PdfRendererPreV
。
自动切换语言的优化
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.
改进了 OpenType Variable Font API
Android 15 improves the usability of the OpenType variable font. You can 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 API 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.
精细的换行控制
从 Android 15 开始,TextView
和底层行断开符可以将给定部分文本保留在同一行中,以提高可读性。您可以通过在字符串资源或 createNoBreakSpan
中使用 <nobreak>
标记来充分利用此换行符自定义功能。同样,您可以使用 <nohyphen>
标记或 createNoHyphenationSpan
来防止对字词进行分词。
例如,以下字符串资源不包含换行符,在呈现时,文本“Pixel 8 Pro”会在不合适的位置换行:
<resources>
<string name="pixel8pro">The power and brains behind Pixel 8 Pro.</string>
</resources>
相比之下,此字符串资源包含 <nobreak>
标记,该标记会将字词“Pixel 8 Pro”换行,并防止换行:
<resources>
<string name="pixel8pro">The power and brains behind <nobreak>Pixel 8 Pro.</nobreak></string>
</resources>
以下图片展示了这些字符串呈现方式的差异:

<nobreak>
标记换行。
<nobreak>
标记封装“Pixel 8 Pro.”短语的同一行文本的布局。应用归档
Android and Google Play announced support for app archiving last year, allowing users to free up space by partially removing infrequently used apps from the device that were published using Android App Bundle on Google Play. Android 15 includes OS level support for app archiving and unarchiving, making it easier for all app stores to implement it.
Apps with the REQUEST_DELETE_PACKAGES
permission can call the
PackageInstaller
requestArchive
method to request archiving an
installed app package, which removes the APK and any cached files, but persists
user data. Archived apps are returned as displayable apps through the
LauncherApps
APIs; users will see a UI treatment to highlight that those
apps are archived. If a user taps on an archived app, the responsible installer
will get a request to unarchive it, and the restoration process can be
monitored by the ACTION_PACKAGE_ADDED
broadcast.
使用开发者选项在设备上启用 16 KB 模式

切换以 16KB 页面大小启动设备开发者选项,以便在 16 KB 模式下启动设备。
从 Android 15 QPR1 开始,您可以使用某些设备上提供的开发者选项,以 16 KB 模式启动设备并执行设备端测试。在使用开发者选项之前,请依次前往“设置”->“系统”->“软件更新”,然后应用所有可用的更新。
此开发者选项适用于以下设备:
Pixel 8 和 Pixel 8 Pro(搭载 Android 15 QPR1 或更高版本)
警告:由于 Android 15 QPR2 Beta 版 3 存在已知问题,在安装 Android 15 QPR2 Beta 版 3 并以 16 KB 模式启动设备后,Pixel 8 设备上的触摸屏无法正常使用。此问题不会影响 Pixel 8 Pro 设备。
Pixel 8a(搭载 Android 15 QPR1 或更高版本)
警告:由于 Android 15 QPR2 Beta 版 3 存在已知问题,在安装 Android 15 QPR2 Beta 版 3 并以 16 KB 模式启动设备后,Pixel 8a 设备上的触摸屏无法正常使用。
Pixel 9、Pixel 9 Pro 和 Pixel 9 Pro XL(搭载 Android 15 QPR2 Beta 2 或更高版本)
图形
Android 15 带来了最新的图形改进,包括 ANGLE 以及 Canvas 图形系统的增强功能。
改进 Android 的 GPU 访问
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

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++.
改进了画布
Android 15 continues our modernization of Android's Canvas graphics system with additional 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.
性能和电池
Android 将继续专注于帮助您提升应用的性能和质量。Android 15 引入了一些 API,可帮助您更高效地执行应用中的任务、优化应用性能,以及收集有关应用的数据分析。
如需了解省电最佳实践、调试网络和功耗,以及详细了解我们如何在 Android 15 及较新版本的 Android 中提高后台工作的电池效率,请参阅 Google I/O 大会上的 Improving battery efficiency of background work on Android 演讲。
ApplicationStartInfo API
In previous versions of Android, app startup has been a bit of a mystery. It was
challenging to determine within your app whether it started from a cold, warm,
or hot state. It was also difficult to know how long your app spent during the
various launch phases: forking the process, calling onCreate
, drawing the
first frame, and more. When your Application
class was instantiated, you had no
way of knowing whether the app started from a broadcast, a content provider, a
job, a backup, boot complete, an alarm, or an Activity
.
The ApplicationStartInfo
API on Android 15 provides
all of this and more. You can even choose to add your own timestamps into the
flow to help collect timing data in one place. In addition to collecting
metrics, you can use ApplicationStartInfo
to help directly optimize app
startup; for example, you can eliminate the costly instantiation of UI-related
libraries within your Application
class when your app is starting up due to a
broadcast.
详细的应用大小信息
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.
由应用管理的性能分析
Android 15 includes the ProfilingManager
class,
which lets you collect profiling information from within your app such as 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.
To simplify constructing profiling requests in your app, we recommend using the
corresponding Profiling
AndroidX API, available
in Core 1.15.0-rc01 or higher.
SQLite 数据库方面的改进
Android 15 引入了 SQLite API,这些 API 可公开底层 SQLite 引擎的高级功能,以解决可能在应用中出现的特定性能问题。将 SQLite 更新到版本 3.44.3。
开发者应参阅 SQLite 性能最佳实践 以便充分利用其 SQLite 数据库,尤其是在处理大型 或运行对延迟敏感的查询时
- 只读延迟事务:在发出
只读(不包括写入语句),请使用
beginTransactionReadOnly()
和beginTransactionWithListenerReadOnly(SQLiteTransactionListener)
发出只读的DEFERRED
事务。此类事务 如果数据库处于 WAL 模式 与IMMEDIATE
或EXCLUSIVE
事务并发运行。 - 行数和 ID:添加了 API 以检索已更改的行数和 ID
行或最后插入的行 ID 而不发出额外的查询。
getLastChangedRowCount()
会返回当前事务中最近的 SQL 语句插入、更新或删除的行数,而getTotalChangedRowCount()
会返回当前连接的计数。getLastInsertRowId()
返回最后一行的rowid
以便在当前连接中插入 - 原始语句:发出原始 SQlite 语句,从而绕过便利 及其可能产生的任何额外处理开销。
Android 动态性能框架更新
Android 15 continues our investment in the Android Dynamic Performance Framework (ADPF), a set of APIs that allow games and performance intensive apps to interact more directly with power and thermal systems of Android devices. On supported devices, Android 15 adds ADPF capabilities:
- A power-efficiency mode for hint sessions to indicate that their associated threads should prefer power saving over performance, great for long-running background workloads.
- GPU and CPU work durations can both be reported in hint sessions, allowing the system to adjust CPU and GPU frequencies together to best meet workload demands.
- Thermal headroom thresholds to interpret possible thermal throttling status based on headroom prediction.
To learn more about how to use ADPF in your apps and games, head over to the documentation.
隐私设置
Android 15 包含多种功能,可帮助应用开发者保护用户隐私。
屏幕录制检测
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)
}
扩展了 IntentFilter 功能
Android 15 通过 UriRelativeFilterGroup
支持更精确的 Intent
解析,UriRelativeFilterGroup
包含一组 UriRelativeFilter
对象,这些对象构成一组必须满足的 Intent
匹配规则,包括网址查询参数、网址片段以及屏蔽或排除规则。
您可以在 AndroidManifest
XML 文件中使用 <uri-relative-filter-group>
标记来定义这些规则,该标记可以包含 android:allow
标记。这些代码可以包含使用现有数据代码属性以及 android:query
和 android:fragment
属性的 <data>
代码。
下面是一个 AndroidManifest
语法示例:
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.BROWSABLE" />
<category android:name="android.intent.category.DEFAULT" />
<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>
私密空间
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
查询用户对“选择照片访问权限”的最新选择
Apps can now highlight only the most-recently-selected photos and videos when
partial access to media permissions is granted. This feature can improve
the user experience for apps that frequently request access to photos and
videos. To use this feature in your app, enable the
QUERY_ARG_LATEST_SELECTION_ONLY
argument when querying MediaStore
through 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 on 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 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.
健康数据共享
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 additional 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.
应用屏幕共享
Android 15 supports app 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 app screen sharing experience. Note that for apps targeting
Android 14 (API level 34) or higher,
user consent is required for each
MediaProjection
capture session.
用户体验和系统界面
Android 15 让应用开发者和用户可以更灵活地控制设备配置,以满足他们的需求。
如需详细了解如何利用 Android 15 中的最新改进来提升应用的用户体验,请观看 Google I/O 大会上的提升 Android 应用的用户体验演讲。
使用 Generated Previews API 实现更丰富的 widget 预览
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.

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.
画中画
Android 15 introduces 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 another state.
With this UI state, apps targeting Android 15 (API level 35) 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.
改进了“勿扰”规则
AutomaticZenRule
允许应用自定义注意力机制
管理(勿扰)规则,并确定何时启用或停用
。Android 15 极大地增强了这些规则,旨在提高
用户体验。其中包含以下增强功能:
- 向
AutomaticZenRule
添加类型,让系统能够应用特殊类型 对某些规则的处理 - 向
AutomaticZenRule
添加图标,使模式更加丰富 易于识别。 - 将
triggerDescription
字符串添加到AutomaticZenRule
,用于描述 规则应当对用户生效的条件。 - 已添加
ZenDeviceEffects
更改为AutomaticZenRule
,从而允许规则触发灰度等操作 显示、夜间模式或调暗壁纸。
为通知渠道设置 VibrationEffect
Android 15 supports setting rich vibrations for incoming notifications by
channel using NotificationChannel.setVibrationEffect
, so
your users can distinguish between different types of notifications without
having to look at their device.
媒体投屏状态栏条状标签和自动停止
媒体投放可能会泄露用户的私密信息。一个醒目的新状态栏条状标签可让用户了解任何正在进行的屏幕投影。用户可以点按该条状标签停止投屏、共享或录制屏幕。此外,为了提供更直观的用户体验,当设备屏幕锁定后,所有正在进行的屏幕投影都会自动停止。

大屏设备和外形规格
Android 15 为您的应用提供了支持,可充分利用 Android 的各种外形规格,包括大屏设备、翻盖设备和可折叠设备。
改进了大屏幕多任务处理
Android 15 为用户提供了在大屏设备上更好地进行多任务处理的方式。对于 例如,用户可以保存自己喜爱的分屏应用组合, 访问并固定屏幕上的任务栏,以便在应用之间快速切换。这意味着 让应用具备自适应能力比以往任何时候都更加重要。
Google I/O 大会上有一些关于构建自适应 Android 的会议 应用和使用 Material 3 构建界面 自适应库 我们的文档中提供了更多帮助信息,帮助您针对大型语言 。
封面屏幕支持
Your app can declare a property that Android 15 uses to
allow your Application
or Activity
to be presented on the small cover
screens of supported flippable devices. These screens are too small to be
considered as compatible targets for Android apps to run on, but your app can
opt in to supporting them, making your app available in more places.
连接
Android 15 更新了平台,让您的应用可以使用最新的通信和无线技术。
卫星支持
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.

更顺畅的 NFC 体验
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 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.
钱包角色
Android 15 introduces a Wallet role that allows tighter integration with the user's preferred wallet app. This role replaces the NFC default contactless payment setting. Users can manage the Wallet role holder by navigating to Settings > Apps > Default Apps.
The Wallet role is used when routing NFC taps for AIDs registered in the payment category. Taps always go to the Wallet role holder unless another app that is registered for the same AID is running in the foreground.
This role is also used to determine where the Wallet Quick Access tile should go when activated. When the role is set to "None", the Quick Access tile isn't available and payment category NFC taps are only delivered to the foreground app.
安全
Android 15 可帮助您增强应用的安全性、保护应用的数据,并让用户更清楚地了解并更好地控制其数据。观看 Google I/O 大会上的保障 Android 用户安全演讲,详细了解我们为改进用户保护措施并保护您的应用免受新威胁而采取的措施。
将 Credential Manager 与自动填充功能集成
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.
将一键注册和登录与生物识别提示集成
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.
端到端加密的密钥管理
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.
对内容 URI 的权限检查
Android 15 introduces a set of APIs that perform permission checks on content URIs:
Context.checkContentUriPermissionFull
: This performs a full permission check on content URIs.Activity
manifest attributerequireContentUriPermissionFromCaller
: This enforces specified permissions on the provided content URIs at activity launch.ComponentCaller
class forActivity
callers: This represents the app that launched the activity.
无障碍
Android 15 添加了一些功能,可为用户改善无障碍体验。
改进盲文
In Android 15, we've made it possible for TalkBack to support Braille displays that are using the HID standard over both USB and secure Bluetooth.
This standard, much like the one used by mice and keyboards, will help Android support a wider range of Braille displays over time.
国际化
Android 15 添加了一些功能,可在用户使用不同语言使用设备时提升用户体验。
CJK 可变字体
Starting with Android 15, the font file for Chinese, Japanese, and Korean (CJK) languages, NotoSansCJK, is now a variable font. Variable fonts open up 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.

字符间两端对齐
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.

JUSTIFICATION_MODE_NONE
.
JUSTIFICATION_MODE_NONE
.
JUSTIFICATION_MODE_INTER_WORD
.
JUSTIFICATION_MODE_INTER_WORD
.
JUSTIFICATION_MODE_INTER_CHARACTER
.
JUSTIFICATION_MODE_INTER_CHARACTER
.自动换行配置
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 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:

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:

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
.额外的日语 hentaigana 字体
In Android 15, a 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.

VideoLAN cone Copyright (c) 1996-2010 VideoLAN. This logo or a modified version may be used or modified by anyone to refer to the VideoLAN project or any product developed by the VideoLAN team, but does not indicate endorsement by the project.
Vulkan and the Vulkan logo are registered trademarks of the Khronos Group Inc.
OpenGL is a registered trademark and the OpenGL ES logo is a trademark of Hewlett Packard Enterprise used by permission by Khronos.