Android 15 wprowadza programistów – świetne nowe funkcje i interfejsy API. W sekcjach poniżej znajdziesz podsumowanie tych funkcji, aby ułatwić Ci rozpoczęcie korzystania z powiązanych interfejsów API.
Szczegółową listę nowych, zmodyfikowanych i usuniętych interfejsów API znajdziesz w raporcie różnic między interfejsami API. Szczegółowe informacje o nowych interfejsach API znajdziesz w dokumentacji interfejsu Android API. Nowe interfejsy API są wyróżnione w celu zapewnienia widoczności. Aby dowiedzieć się więcej o obszarach, w których zmiany na platformie mogą wpłynąć na Twoje aplikacje, zapoznaj się ze zmianami w zachowaniu użytkowników Androida 15, które wpływają na aplikacje, gdy są kierowane na Androida 15, oraz zmianami w działaniu, które wpływają na wszystkie aplikacje, niezależnie od wersjitargetSdkVersion
.
Aparat i multimedia
Android 15 zawiera wiele funkcji, które usprawniają działanie aparatu i multimediów oraz zapewniają dostęp do narzędzi i sprzętu, które pomagają twórcom realizować swoją wizję na Androidzie.
Więcej informacji o najnowszych funkcjach i rozwiązaniach dla programistów dotyczących multimediów i aparatu na Androida znajdziesz w prezentacji Google I/O na temat tworzenia nowoczesnych multimediów i aparatów w Androidzie.
Słabe oświetlenie
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.
Sterowanie aparatem w aplikacji
Android 15 dodaje nowe rozszerzenie, które zapewnia większą kontrolę nad sprzętem aparatu i jego algorytmami na obsługiwanych urządzeniach:
- Zaawansowane korekty siły lampy błyskowej umożliwiające precyzyjną kontrolę intensywności lampy błyskowej w trybach
SINGLE
iTORCH
podczas robienia zdjęć.
Kontrola pola manewru w trybie 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.
Regulacja głośności
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.
Urządzenia Virtual MIDI 2.0
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.
Bardziej wydajne dekodowanie programowe AV1
dav1d, popularny dekoder oprogramowania AV1 firmy VideoLAN, jest teraz dostępny na urządzeniach z Androidem, które nie obsługują dekodowania AV1 w sprzęcie. dav1d jest nawet trzykrotnie bardziej wydajny niż starsza wersja dekodera AV1, dzięki czemu odtwarzanie w jakości HD AV1 jest możliwe u większej liczby użytkowników, w tym na niektórych urządzeniach niskiej i średniej klasy.
Na razie aplikacja musi wyrazić zgodę na używanie dav1d przez wywołanie jej nazwy "c2.android.av1-dav1d.decoder"
. W kolejnej aktualizacji program dav1d zostanie ustawiony jako domyślny dekoder oprogramowania AV1. Obsługa jest ustandaryzowana i cofnięta do urządzeń z Androidem 11, które otrzymują aktualizacje systemowe Google Play.
Produktywność i narzędzia programistów
Choć większość naszych działań ukierunkowanych na usprawnienie centrów biurowych Twojej firmy dotyczy narzędzi takich jak Android Studio, Jetpack Compose czy biblioteki Android Jetpack, cały czas szukamy nowych rozwiązań na naszej platformie, aby ułatwić Ci zrealizowanie Twojej wizji.
Aktualizacje OpenJDK 17
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.
Ulepszenia plików PDF
Android 15 includes substantial improvements to the PdfRenderer
APIs. Apps can incorporate advanced features such as rendering
password-protected files, annotations, form editing,
searching, and selection with copy. Linearized PDF
optimizations are supported to speed local PDF viewing and reduce resource use.
The PdfRenderer
has been moved to a module that can be updated using Google
Play system updates independent of the platform release, and we're supporting
these changes back to Android 11 (API level 30) by creating a compatible
pre-Android 15 version of the API surface, called
PdfRendererPreV
.
We value your feedback on the enhancements we've made to the PdfRenderer
API
surface, and we plan to make it even easier to incorporate these APIs into your
app with an upcoming Android Jetpack library.
Zawężenie automatycznego przełączania języka
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.
Ulepszony interfejs API czcionek zmiennej OpenType
W Androidzie 15 łatwiejsza obsługa czcionki zmiennej OpenType. Teraz możesz
utworzyć instancję FontFamily
z czcionki zmiennej bez określania,
osie wagowe za pomocą interfejsu API buildVariableFamily
. Zastąpienia mechanizmu renderowania tekstu
wartość osi wght
, aby pasowała do wyświetlanego tekstu.
Dzięki nowemu interfejsowi API upraszcza to kod do tworzenia Typeface
znacznie:
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();
Wcześniej, aby utworzyć ten sam element Typeface
, potrzeba dużo więcej kodu:
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();
Oto przykład tworzenia obiektu Typeface
za pomocą starego i nowego interfejsu API
renderuje:
W tym przykładzie obiekt Typeface
utworzony za pomocą starego interfejsu API nie zawiera
możliwość tworzenia dokładnych grubości czcionek dla 350, 450, 550 i 650
Font
, więc mechanizm renderowania wraca do najbliższej wagi. Zatem w:
w tym przypadku renderowanych jest 300 zamiast 350, 400 zamiast 450 oraz
i tak dalej. Natomiast interfejs Typeface
utworzony przy użyciu nowych interfejsów API dynamicznie tworzy
wystąpienie Font
dla danej wagi, więc dokładne wagi są renderowane dla 350,
450, 550 i 650.
Szczegółowe opcje podziału wiersza
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:
Archiwizowanie aplikacji
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 now 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.
Grafika
Android 15 zawiera najnowsze ulepszenia grafiki, w tym ANGLE i uzupełnienia do systemu graficznego Canvas.
Modernizacja dostępu do GPU na Androidzie
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++.
Ulepszenia 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.
Wydajność i bateria
Nadal koncentrujemy się na tym, aby pomagać Ci w zwiększaniu wydajności i jakości aplikacji. Android 15 wprowadza nowe interfejsy API, które pomagają zwiększyć efektywność wykonywania zadań w aplikacji, optymalizować wydajność aplikacji i zbierać statystyki dotyczące aplikacji.
Sprawdzone metody oszczędzania baterii, debugowanie wykorzystania sieci i energii oraz szczegółowe informacje o tym, jak poprawiamy efektywność pracy w tle na Androidzie 15 i w najnowszych wersjach Androida, znajdziesz w prezentacji z Google I/O na temat poprawy wydajności baterii podczas pracy w tle na Androidzie.
Interfejs API ApplicationStartInfo
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.
Szczegółowe informacje o rozmiarze aplikacji
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.
Profilowanie zarządzane przez aplikację
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.
Ulepszenia bazy danych 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.
Aktualizacje Android Dynamic Performance Framework
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 will add new 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.
Prywatność
Android 15 ma wiele funkcji, które pomagają deweloperom aplikacji chronić prywatność użytkownika.
Wykrywanie nagrania zawartości ekranu
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)
}
Rozszerzone możliwości IntentFilter
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>
Przestrzeń prywatna
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
Zapytanie o dostęp do wybranych zdjęć dotyczące ostatniego użytkownika
It is now possible for apps to 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) });
Piaskownica prywatności na Androida
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.
Health 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.
Częściowe udostępnianie ekranu
Android 15 obsługuje udostępnianie części ekranu, dzięki czemu użytkownicy mogą udostępnić lub nagrać tylko okno aplikacji, a nie cały ekran urządzenia. Ta funkcja, po raz pierwszy włączona w Androidzie 14 QPR2, obejmuje wywołania zwrotne (MediaProjection
), które umożliwiają aplikacji dostosowanie sposobu udostępniania części ekranu. Pamiętaj, że w przypadku aplikacji kierowanych na Androida 14 (poziom interfejsu API 34) lub nowszego wymagana jest teraz zgoda użytkownika na każdą sesję przechwytywania MediaProjection
.
Wygoda użytkowania i interfejs systemu
Android 15 daje deweloperom aplikacji i użytkownikom większą kontrolę oraz elastyczność w konfigurowaniu urządzeń do własnych potrzeb.
Aby dowiedzieć się więcej o tym, jak za pomocą najnowszych ulepszeń Androida 15 poprawić wrażenia użytkowników aplikacji, przeczytaj prezentację Google I/O na temat poprawiania wrażeń użytkowników aplikacji na Androida.
Więcej możliwości podglądu widżetów w interfejsie Generated Previews API
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.
Obraz w obrazie
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.
Ulepszone reguły Nie przeszkadzać
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.
Ustaw efekt wibracji dla kanałów powiadomień
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.
Duże ekrany i formaty
Android 15 obsługuje aplikacje, które pozwalają w pełni wykorzystać możliwości różnych formatów Androida, w tym dużych ekranów, urządzeń odwracanych i składanych.
Ulepszona wielozadaniowość na dużym ekranie
Android 15 gives users better ways to multitask on large screen devices. For example, users can save their favorite split-screen app combinations for quick access and pin the taskbar on screen to quickly switch between apps. This means that making sure your app is adaptive is more important than ever.
Google I/O has sessions on Building adaptive Android apps and Building UI with the Material 3 adaptive library that can help, and our documentation has more to help you Design for large screens.
Obsługa ekranu zasłaniającego
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.
Połączenia
Android 15 aktualizuje platformę, aby zapewnić aplikacji dostęp do najnowszych osiągnięć w dziedzinie technologii komunikacji i technologii bezprzewodowej.
Obsługa satelitów
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.
Płynniejsze korzystanie z NFC
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.
Rola w Portfelu
Android 15 introduces a new 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 QuickAccess tile should go when activated. When the role is set to "None", the QuickAccess tile isn't available and payment category NFC taps are only delivered to the foreground app.
Zabezpieczenia
Android 15 pomaga zwiększyć bezpieczeństwo aplikacji, chronić jej dane oraz zapewniać użytkownikom większą przejrzystość i kontrolę nad ich danymi. W rozmowie z Google I/O poświęconej bezpieczeństwie użytkowników na urządzeniach z Androidem znajdziesz więcej informacji o tym, co robimy, aby zwiększyć ochronę użytkowników i ochronę aplikacji przed nowymi zagrożeniami.
Zintegruj Menedżera danych logowania z autouzupełnianiem
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.
Zintegruj rejestrację i logowanie jednym dotknięciem z potwierdzeniami biometrycznymi
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.
Zarządzanie kluczami w celu pełnego szyfrowania
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.
Kontrole uprawnień do identyfikatorów URI treści
Android 15 introduces a new 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.
Ułatwienia dostępu
Android 15 dodaje funkcje, które poprawiają dostępność dla użytkowników.
Lepszy brajl
W Androidzie 15 umożliwiliśmy TalkBack obsługę monitorów brajlowskich korzystających ze standardu HID zarówno przez USB, jak i bezpiecznego Bluetootha.
Ten standard, podobnie jak używany przez myszy i klawiatury, ułatwi Androidowi obsługę szerszej gamy monitorów brajlowskich.
Internacjonalizacja
Android 15 dodaje funkcje i możliwości, które uzupełniają wrażenia użytkownika, gdy urządzenie jest używane w różnych językach.
Czcionka zmiennej CJK
Począwszy od Androida 15 plik czcionki NotoSansCJK dla języka chińskiego, japońskiego i koreańskiego (CJK) jest teraz czcionką zmienną. Zmienne czcionki otwierają nowe możliwości dla typografii kreacji w językach CJK. Projektanci mogą odkrywać szerszą gamę stylów i tworzyć efektowne układy, które wcześniej były trudne lub niewykonalne.
Uzasadnienie między znakami
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.
Automatyczna konfiguracja podziału wiersza
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:
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:
Nowa czcionka japońska hentaigana
W Androidzie 15 nowy plik czcionki starej japońskiej hiragany (znanej jako Hentaigana) jest domyślnie w pakiecie. Unikalne kształty postaci Hentaigany nadają dziełom sztuki lub projektowi charakterystycznego charakteru, pomagając jednocześnie zachować odpowiedni przekaz i zrozumienie starożytnych japońskich dokumentów.
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