Davranış değişiklikleri: Android 15 veya sonraki sürümleri hedefleyen uygulamalar

Önceki sürümlerde olduğu gibi Android 15'te de uygulamanızı etkileyebilecek davranış değişiklikleri yer alıyor. Aşağıdaki davranış değişiklikleri yalnızca Android 15 veya sonraki sürümleri hedefleyen uygulamalar için geçerlidir. Uygulamanız Android 15 veya sonraki sürümleri hedefliyorsa geçerli olduğu durumlarda uygulamanızı bu davranışları düzgün şekilde destekleyecek şekilde değiştirmeniz gerekir.

Uygulamanızın targetSdkVersion sürümünden bağımsız olarak Android 15'te çalışan tüm uygulamaları etkileyen davranış değişiklikleri listesini de incelemeyi unutmayın.

Temel işlevler

Android 15, Android sisteminin çeşitli temel özelliklerini değiştirir veya genişletir.

Ön plan hizmetlerinde yapılan değişiklikler

We are making the following changes to foreground services with Android 15.

Data sync foreground service timeout behavior

Android 15 introduces a new timeout behavior to dataSync for apps targeting Android 15 (API level 35) or higher. This behavior also applies to the new mediaProcessing foreground service type.

The system permits an app's dataSync services to run for a total of 6 hours in a 24-hour period, after which the system calls the running service's Service.onTimeout(int, int) method (introduced in Android 15). At this time, the service has a few seconds to call Service.stopSelf(). When Service.onTimeout() is called, the service is no longer considered a foreground service. If the service does not call Service.stopSelf(), the system throws an internal exception. The exception is logged in Logcat with the following message:

Fatal Exception: android.app.RemoteServiceException: "A foreground service of
type dataSync did not stop within its timeout: [component name]"

To avoid problems with this behavior change, you can do one or more of the following:

  1. Have your service implement the new Service.onTimeout(int, int) method. When your app receives the callback, make sure to call stopSelf() within a few seconds. (If you don't stop the app right away, the system generates a failure.)
  2. Make sure your app's dataSync services don't run for more than a total of 6 hours in any 24-hour period (unless the user interacts with the app, resetting the timer).
  3. Only start dataSync foreground services as a result of direct user interaction; since your app is in the foreground when the service starts, your service has the full six hours after the app goes to the background.
  4. Instead of using a dataSync foreground service, use an alternative API.

If your app's dataSync foreground services have run for 6 hours in the last 24, you cannot start another dataSync foreground service unless the user has brought your app to the foreground (which resets the timer). If you try to start another dataSync foreground service, the system throws ForegroundServiceStartNotAllowedException with an error message like "Time limit already exhausted for foreground service type dataSync".

Testing

To test your app's behavior, you can enable data sync timeouts even if your app is not targeting Android 15 (as long as the app is running on an Android 15 device). To enable timeouts, run the following adb command:

adb shell am compat enable FGS_INTRODUCE_TIME_LIMITS your-package-name

You can also adjust the timeout period, to make it easier to test how your app behaves when the limit is reached. To set a new timeout period, run the following adb command:

adb shell device_config put activity_manager data_sync_fgs_timeout_duration duration-in-milliseconds

New media processing foreground service type

Android 15, mediaProcessing adlı yeni bir ön plan hizmet türü kullanıma sunar. Bu hizmet türü, medya dosyalarının kodunu dönüştürme gibi işlemler için uygundur. Örneğin, bir medya uygulaması bir ses dosyası indirebilir ve dosyayı oynatmadan önce farklı bir biçime dönüştürmesi gerekebilir. Uygulama arka plandayken bile dönüşümün devam etmesini sağlamak için bir mediaProcessing ön plan hizmeti kullanabilirsiniz.

Sistem, bir uygulamanın mediaProcessing hizmetlerinin 24 saat içinde toplam 6 saat çalışmasına izin verir. Ardından, çalışan hizmetin Service.onTimeout(int, int) yöntemini (Android 15'te kullanıma sunulmuştur) çağırır. Şu anda hizmetin Service.stopSelf() hizmetini çağırmak için birkaç saniyesi var. Hizmet Service.stopSelf()'ü çağırmazsa sistem dahili bir istisna oluşturur. İstisna aşağıdaki mesajla Logcat'e kaydedilir:

Fatal Exception: android.app.RemoteServiceException: "A foreground service of
type mediaProcessing did not stop within its timeout: [component name]"

İstisnayı önlemek için aşağıdakilerden birini yapabilirsiniz:

  1. Hizmetinizin yeni Service.onTimeout(int, int) yöntemini uygulamasını sağlayın. Uygulamanız geri aramayı aldığında birkaç saniye içinde stopSelf()'ü aradığınızdan emin olun. (Uygulamayı hemen durdurmazsanız sistem bir hata oluşturur.)
  2. Uygulamanızın mediaProcessing hizmetlerinin herhangi bir 24 saatlik süre içinde toplam 6 saatten fazla çalışmadığından emin olun (kullanıcı uygulamayla etkileşim kurmadığı ve zamanlayıcıyı sıfırladığı sürece).
  3. mediaProcessing ön plan hizmetlerini yalnızca doğrudan kullanıcı etkileşimi sonucunda başlatın. Hizmetiniz başladığında uygulamanız ön planda olduğundan, uygulama arka plana geçtikten sonra hizmetiniz altı saat boyunca çalışır.
  4. mediaProcessing ön plan hizmeti yerine WorkManager gibi bir alternatif API kullanın.

Uygulamanızın mediaProcessing ön plan hizmetleri son 24 saat içinde 6 saat boyunca çalıştıysa kullanıcı uygulamanızı ön plana getirmediği (bu durumda zamanlayıcı sıfırlanır) sürece başka bir mediaProcessing ön plan hizmeti başlatamazsınız. Başka bir mediaProcessing ön plan hizmetini başlatmaya çalışırsanız sistem, "mediaProcessing türündeki ön plan hizmeti için zaman sınırı zaten aşıldı" gibi bir hata mesajıyla ForegroundServiceStartNotAllowedException oluşturur.

mediaProcessing hizmet türü hakkında daha fazla bilgi için Android 15 için ön plan hizmet türlerinde yapılan değişiklikler: Medya işleme başlıklı makaleyi inceleyin.

Test

Uygulamanızın davranışını test etmek için uygulamanız Android 15'i hedeflemese bile medya işleme zaman aşımlarını etkinleştirebilirsiniz (uygulama Android 15 cihazda çalışıyorsa). Zaman aşımlarını etkinleştirmek için aşağıdaki adb komutunu çalıştırın:

adb shell am compat enable FGS_INTRODUCE_TIME_LIMITS your-package-name

Ayrıca, sınıra ulaşıldığında uygulamanızın nasıl davrandığını test etmeyi kolaylaştırmak için zaman aşımı süresini ayarlayabilirsiniz. Yeni bir zaman aşımı süresi ayarlamak için aşağıdaki adb komutunu çalıştırın:

adb shell device_config put activity_manager media_processing_fgs_timeout_duration duration-in-milliseconds

Restrictions on BOOT_COMPLETED broadcast receivers launching foreground services

Yayınlanacak BOOT_COMPLETED yayın alıcıyla ilgili yeni kısıtlamalar var ön plan hizmetlerini kullanabilirsiniz. BOOT_COMPLETED alıcıların Aşağıdaki ön plan hizmeti türleri kullanılabilir:

Bir BOOT_COMPLETED alıcısı bu tür ön planlardan herhangi birini başlatmaya çalışırsa özelliklerini sunarsa sistem ForegroundServiceStartNotAllowedException komutunu atar.

Test

Uygulamanızın davranışını test etmek için, aşağıdaki durumlarda bile bu yeni kısıtlamaları etkinleştirebilirsiniz: Uygulama Android 15'i hedeflemiyor (uygulama Android 15 yüklü olduğu sürece) cihazda) olduğunu varsayalım. Aşağıdaki adb komutunu çalıştırın:

adb shell am compat enable FGS_BOOT_COMPLETED_RESTRICTIONS your-package-name

Cihazı yeniden başlatmadan BOOT_COMPLETED yayını göndermek için: aşağıdaki adb komutunu çalıştırın:

adb shell am broadcast -a android.intent.action.BOOT_COMPLETED your-package-name

Restrictions on starting foreground services while an app holds the SYSTEM_ALERT_WINDOW permission

Previously, if an app held the SYSTEM_ALERT_WINDOW permission, it could launch a foreground service even if the app was currently in the background (as discussed in exemptions from background start restrictions).

If an app targets Android 15, this exemption is now narrower. The app now needs to have the SYSTEM_ALERT_WINDOW permission and also have a visible overlay window. That is, the app needs to first launch a TYPE_APPLICATION_OVERLAY window and the window needs to be visible before you start a foreground service.

If your app attempts to start a foreground service from the background without meeting these new requirements (and it does not have some other exemption), the system throws ForegroundServiceStartNotAllowedException.

If your app declares the SYSTEM_ALERT_WINDOW permission and launches foreground services from the background, it may be affected by this change. If your app gets a ForegroundServiceStartNotAllowedException, check your app's order of operations and make sure your app already has an active overlay window before it attempts to start a foreground service from the background. You can check if your overlay window is currently visible by calling View.getWindowVisibility(), or you can override View.onWindowVisibilityChanged() to get notified whenever the visibility changes.

Testing

To test your app's behavior, you can enable these new restrictions even if your app is not targeting Android 15 (as long as the app is running on an Android 15 device). To enable these new restrictions on starting foreground services from the background, run the following adb command:

adb shell am compat enable FGS_SAW_RESTRICTIONS your-package-name

Uygulamaların Rahatsız Etmeyin modunun genel durumunu ne zaman değiştirebileceğiyle ilgili değişiklikler

Android 15'i hedefleyen uygulamalar artık cihazlarda Rahatsız Etmeyin (DND) özelliğinin genel durumunu veya politikasını değiştiremez (kullanıcı ayarlarını değiştirerek veya Rahatsız Etmeyin modunu kapatarak). Bunun yerine, uygulamalar bir AutomaticZenRule katkıda bulunmalıdır. Bu da sistem, mevcut en kısıtlayıcı politika kazanç şemasıyla global bir politika haline getirir. Daha önce genel durumu (setInterruptionFilter, setNotificationPolicy) etkileyen mevcut API'lere yapılan çağrılar, söz konusu API çağrılarının çağrı döngüsüne bağlı olarak açılıp kapatılan örtülü bir AutomaticZenRule öğesinin oluşturulması veya güncellenmesiyle sonuçlanır.

Bu değişikliğin yalnızca uygulama setInterruptionFilter(INTERRUPTION_FILTER_ALL) yöntemini çağırıyorsa ve bu çağrının, sahipleri tarafından önceden etkinleştirilmiş bir AutomaticZenRule öğesini devre dışı bırakmasını bekliyorsa gözlemlenebilir davranışı etkileyeceğini unutmayın.

OpenJDK API değişiklikleri

Android 15 continues the work of refreshing Android's core libraries to align with the features in the latest OpenJDK LTS releases.

Some of these changes can affect app compatibility for apps targeting Android 15 (API level 35):

  • Changes to string formatting APIs: Validation of argument index, flags, width, and precision are now more strict when using the following String.format() and Formatter.format() APIs:

    For example, the following exception is thrown when an argument index of 0 is used (%0 in the format string):

    IllegalFormatArgumentIndexException: Illegal format argument index = 0

    In this case, the issue can be fixed by using an argument index of 1 (%1 in the format string).

  • Changes to component type of Arrays.asList(...).toArray(): When using Arrays.asList(...).toArray(), the component type of the resulting array is now an Object—not the type of the underlying array's elements. So the following code throws a ClassCastException:

    String[] elements = (String[]) Arrays.asList("one", "two").toArray();

    For this case, to preserve String as the component type in the resulting array, you could use Collection.toArray(Object[]) instead:

    String[] elements = Arrays.asList("two", "one").toArray(new String[0]);

  • Changes to language code handling: When using the Locale API, language codes for Hebrew, Yiddish, and Indonesian are no longer converted to their obsolete forms (Hebrew: iw, Yiddish: ji, and Indonesian: in). When specifying the language code for one of these locales, use the codes from ISO 639-1 instead (Hebrew: he, Yiddish: yi, and Indonesian: id).

  • Changes to random int sequences: Following the changes made in https://bugs.openjdk.org/browse/JDK-8301574, the following Random.ints() methods now return a different sequence of numbers than the Random.nextInt() methods do:

    Generally, this change shouldn't result in app-breaking behavior, but your code shouldn't expect the sequence generated from Random.ints() methods to match Random.nextInt().

The new SequencedCollection API can affect your app's compatibility after you update compileSdk in your app's build configuration to use Android 15 (API level 35):

  • Collision with MutableList.removeFirst() and MutableList.removeLast() extension functions in kotlin-stdlib

    The List type in Java is mapped to the MutableList type in Kotlin. Because the List.removeFirst() and List.removeLast() APIs have been introduced in Android 15 (API level 35), the Kotlin compiler resolves function calls, for example list.removeFirst(), statically to the new List APIs instead of to the extension functions in kotlin-stdlib.

    If an app is re-compiled with compileSdk set to 35 and minSdk set to 34 or lower, and then the app is run on Android 14 and lower, a runtime error is thrown:

    java.lang.NoSuchMethodError: No virtual method
removeFirst()Ljava/lang/Object; in class Ljava/util/ArrayList;

    The existing NewApi lint option in Android Gradle Plugin can catch these new API usages.

    ./gradlew lint

MainActivity.kt:41: Error: Call requires API level 35 (current min is 34): java.util.List#removeFirst [NewApi]
      list.removeFirst()

    To fix the runtime exception and lint errors, the removeFirst() and removeLast() function calls can be replaced with removeAt(0) and removeAt(list.lastIndex) respectively in Kotlin. If you're using Android Studio Ladybug | 2024.1.3 or higher, it also provides a quick fix option for these errors.

    Consider removing @SuppressLint("NewApi") and lintOptions { disable 'NewApi' } if the lint option has been disabled.

  • Collision with other methods in Java

    New methods have been added into the existing types, for example, List and Deque. These new methods might not be compatible with the methods with the same name and argument types in other interfaces and classes. In the case of a method signature collision with incompatibility, the javac compiler outputs a build-time error. For example:

    Example error 1:

    javac MyList.java

MyList.java:135: error: removeLast() in MyList cannot implement removeLast() in List
  public void removeLast() {
              ^
  return type void is not compatible with Object
  where E is a type-variable:
    E extends Object declared in interface List

    Example error 2:

    javac MyList.java

MyList.java:7: error: types Deque<Object> and List<Object> are incompatible;
public class MyList implements  List<Object>, Deque<Object> {
  both define reversed(), but with unrelated return types
1 error

    Example error 3:

    javac MyList.java

MyList.java:43: error: types List<E#1> and MyInterface<E#2> are incompatible;
public static class MyList implements List<Object>, MyInterface<Object> {
  class MyList inherits unrelated defaults for getFirst() from types List and MyInterface
  where E#1,E#2 are type-variables:
    E#1 extends Object declared in interface List
    E#2 extends Object declared in interface MyInterface
1 error

    To fix these build errors, the class implementing these interfaces should override the method with a compatible return type. For example:

    @Override
public Object getFirst() {
    return List.super.getFirst();
}

Güvenlik

Android 15, uygulamaları ve kullanıcıları kötü amaçlı uygulamalardan korumaya yardımcı olmak için sistem güvenliğini destekleyen değişiklikler içerir.

Güvenli arka plan etkinliği lansmanları

Android 15 protects users from malicious apps and gives them more control over their devices by adding changes that prevent malicious background apps from bringing other apps to the foreground, elevating their privileges, and abusing user interaction. Background activity launches have been restricted since Android 10 (API level 29).

Other changes

In addition to the restriction for UID matching, these other changes are also included:

  • Change PendingIntent creators to block background activity launches by default. This helps prevent apps from accidentally creating a PendingIntent that could be abused by malicious actors.
  • Don't bring an app to the foreground unless the PendingIntent sender allows it. This change aims to prevent malicious apps from abusing the ability to start activities in the background. By default, apps are not allowed to bring the task stack to the foreground unless the creator allows background activity launch privileges or the sender has background activity launch privileges.
  • Control how the top activity of a task stack can finish its task. If the top activity finishes a task, Android will go back to whichever task was last active. Moreover, if a non-top activity finishes its task, Android will go back to the home screen; it won't block the finish of this non-top activity.
  • Prevent launching arbitrary activities from other apps into your own task. This change prevents malicious apps from phishing users by creating activities that appear to be from other apps.
  • Block non-visible windows from being considered for background activity launches. This helps prevent malicious apps from abusing background activity launches to display unwanted or malicious content to users.

Daha güvenli niyetler

Android 15 introduces new optional security measures to make intents safer and more robust. These changes are aimed at preventing potential vulnerabilities and misuse of intents that can be exploited by malicious apps. There are two main improvements to the security of intents in Android 15:

  • Match target intent-filters: Intents that target specific components must accurately match the target's intent-filter specifications. If you send an intent to launch another app's activity, the target intent component needs to align with the receiving activity's declared intent-filters.
  • Intents must have actions: Intents without an action will no longer match any intent-filters. This means that intents used to start activities or services must have a clearly defined action.

In order to check how your app responds to these changes, use StrictMode in your app. To see detailed logs about Intent usage violations, add the following method:

Kotlin

fun onCreate() {
    StrictMode.setVmPolicy(VmPolicy.Builder()
        .detectUnsafeIntentLaunch()
        .build()
    )
}

Java

public void onCreate() {
    StrictMode.setVmPolicy(new VmPolicy.Builder()
            .detectUnsafeIntentLaunch()
            .build());
}

Kullanıcı deneyimi ve sistem kullanıcı arayüzü

Android 15, daha tutarlı ve sezgisel bir kullanıcı deneyimi sunmayı amaçlayan bazı değişiklikler içerir.

Pencere içe yerleştirilmesi değişiklikleri

There are two changes related to window insets in Android 15: edge-to-edge is enforced by default, and there are also configuration changes, such as the default configuration of system bars.

Uçtan uca yaptırım

Apps are edge-to-edge by default on devices running Android 15 if the app is targeting Android 15 (API level 35).

An app that targets Android 14 and is not edge-to-edge on an Android 15 device.


An app that targets Android 15 (API level 35) and is edge-to-edge on an Android 15 device. This app mostly uses Material 3 Compose Components that automatically apply insets. This screen is not negatively impacted by the Android 15 edge-to-edge enforcement.

This is a breaking change that might negatively impact your app's UI. The changes affect the following UI areas:

  • Gesture handle navigation bar
    • Transparent by default.
    • Bottom offset is disabled so content draws behind the system navigation bar unless insets are applied.
    • setNavigationBarColor and R.attr#navigationBarColor are deprecated and don't affect gesture navigation.
    • setNavigationBarContrastEnforced and R.attr#navigationBarContrastEnforced continue to have no effect on gesture navigation.
  • 3-button navigation
    • Opacity set to 80% by default, with color possibly matching the window background.
    • Bottom offset disabled so content draws behind the system navigation bar unless insets are applied.
    • setNavigationBarColor and R.attr#navigationBarColor are set to match the window background by default. The window background must be a color drawable for this default to apply. This API is deprecated but continues to affect 3-button navigation.
    • setNavigationBarContrastEnforced and R.attr#navigationBarContrastEnforced is true by default, which adds an 80% opaque background across 3-button navigation.
  • Status bar
    • Transparent by default.
    • The top offset is disabled so content draws behind the status bar unless insets are applied.
    • setStatusBarColor and R.attr#statusBarColor are deprecated and have no effect on Android 15.
    • setStatusBarContrastEnforced and R.attr#statusBarContrastEnforced are deprecated but still have an effect on Android 15.
  • Display cutout
    • layoutInDisplayCutoutMode of non-floating windows must be LAYOUT_IN_DISPLAY_CUTOUT_MODE_ALWAYS. SHORT_EDGES, NEVER, and DEFAULT are interpreted as ALWAYS so that users don't see a black bar caused by the display cutout and appear edge-to-edge.

The following example shows an app before and after targeting Android 15 (API level 35), and before and after applying insets.

An app that targets Android 14 and is not edge-to-edge on an Android 15 device.
An app that targets Android 15 (API level 35) and is edge-to-edge on an Android 15 device. However, many elements are now hidden by the status bar, 3-button navigation bar, or display cutout due to the Android 15 edge-to-edge enforcements. Hidden UI includes the Material 2 top app bar, floating action buttons, and list items.
An app that targets Android 15 (API level 35), is edge to edge on an Android 15 device and applies insets so that UI is not hidden.
What to check if your app is already edge-to-edge

If your app is already edge-to-edge and applies insets, you are mostly unimpacted, except in the following scenarios. However, even if you think you aren't impacted, we recommend you test your app.

  • You have a non-floating window, such as an Activity that uses SHORT_EDGES, NEVER or DEFAULT instead of LAYOUT_IN_DISPLAY_CUTOUT_MODE_ALWAYS. If your app crashes on launch, this might be due to your splashscreen. You can either upgrade the core splashscreen dependency to 1.2.0-alpha01 or later or set window.attributes.layoutInDisplayCutoutMode = WindowManager.LayoutInDisplayCutoutMode.always.
  • There might be lower-traffic screens with occluded UI. Verify these less-visited screens don't have occluded UI. Lower-traffic screens include:
    • Onboarding or sign-in screens
    • Settings pages
What to check if your app is not already edge-to-edge

If your app is not already edge-to-edge, you are most likely impacted. In addition to the scenarios for apps that are already edge-to-edge, you should consider the following:

  • If your app uses Material 3 Components ( androidx.compose.material3) in compose, such as TopAppBar, BottomAppBar, and NavigationBar, these components are likely not impacted because they automatically handle insets.
  • If your app is using Material 2 Components ( androidx.compose.material) in Compose, these components don't automatically handle insets. However, you can get access to the insets and apply them manually. In androidx.compose.material 1.6.0 and later, use the windowInsets parameter to apply the insets manually for BottomAppBar, TopAppBar, BottomNavigation, and NavigationRail. Likewise, use the contentWindowInsets parameter for Scaffold.
  • If your app uses views and Material Components (com.google.android.material), most views-based Material Components such as BottomNavigationView, BottomAppBar, NavigationRailView, or NavigationView, handle insets and require no additional work. However, you need to add android:fitsSystemWindows="true" if using AppBarLayout.
  • For custom composables, apply the insets manually as padding. If your content is within a Scaffold, you can consume insets using the Scaffold padding values. Otherwise, apply padding using one of the WindowInsets.
  • If your app is using views and BottomSheet, SideSheet or custom containers, apply padding using ViewCompat.setOnApplyWindowInsetsListener. For RecyclerView, apply padding using this listener and also add clipToPadding="false".
What to check if your app must offer custom background protection

If your app must offer custom background protection to 3-button navigation or the status bar, your app should place a composable or view behind the system bar using WindowInsets.Type#tappableElement() to get the 3-button navigation bar height or WindowInsets.Type#statusBars.

Additional edge-to-edge resources

See the Edge to Edge Views and Edge to Edge Compose guides for additional considerations on applying insets.

Deprecated APIs

The following APIs are deprecated but not disabled:

The following APIs are deprecated and disabled:

Kararlı yapılandırma

If your app targets Android 15 (API level 35) or higher, Configuration no longer excludes the system bars. If you use the screen size in the Configuration class for layout calculation, you should replace it with better alternatives like an appropriate ViewGroup, WindowInsets, or WindowMetricsCalculator depending on your need.

Configuration has been available since API 1. It is typically obtained from Activity.onConfigurationChanged. It provides information like window density, orientation, and sizes. One important characteristic about the window sizes returned from Configuration is that it previously excluded the system bars.

The configuration size is typically used for resource selection, such as /res/layout-h500dp, and this is still a valid use case. However, using it for layout calculation has always been discouraged. If you do so, you should move away from it now. You should replace the use of Configuration with something more suitable depending on your use case.

If you use it to calculate the layout, use an appropriate ViewGroup, such as CoordinatorLayout or ConstraintLayout. If you use it to determine the height of the system navbar, use WindowInsets. If you want to know the current size of your app window, use computeCurrentWindowMetrics.

The following list describes the fields affected by this change:

elegantTextHeight özelliği varsayılan olarak true değerini alır

Android 15'i hedefleyen uygulamalarda elegantTextHeight TextView özelliği varsayılan olarak true haline gelir. Varsayılan olarak kullanılan kompakt yazı tipi, büyük dikey metriklere sahip bazı komut dosyalarıyla değiştirilir. Bu yazı tipi çok daha okunabilir bir yazı tipiyle değiştirilir. Kompakt yazı tipi, düzenlerin bozulmasını önlemek için kullanıma sunulmuştur. Android 13 (API düzeyi 33), fallbackLineSpacing özelliğini kullanarak metin düzeninin dikey yüksekliği genişletmesine izin vererek bu bozuklukların çoğunun önüne geçer.

Android 15'te, kompakt yazı tipi sistemde kalmaya devam eder. Böylece uygulamanız, öncekiyle aynı davranışı elde etmek için elegantTextHeight değerini false olarak ayarlayabilir, ancak gelecekteki sürümlerde desteklenme olasılığı düşüktür. Bu nedenle, uygulamanız Arapça, Laoca, Myanmar, Tamilce, Guceratça, Kannada, Malayalam, Oriya, Telugu ve Tayca komutlarını destekliyorsa elegantTextHeight değerini true olarak ayarlayarak uygulamanızı test edin.

Android 14 (API düzeyi 34) ve önceki sürümleri hedefleyen uygulamalar için elegantTextHeight davranışı.
Android 15'i hedefleyen uygulamalar için elegantTextHeight davranışı.

Karmaşık harf şekilleri için TextView genişliği değişiyor

In previous versions of Android, some cursive fonts or languages that have complex shaping might draw the letters in the previous or next character's area. In some cases, such letters were clipped at the beginning or ending position. Starting in Android 15, a TextView allocates width for drawing enough space for such letters and allows apps to request extra paddings to the left to prevent clipping.

Because this change affects how a TextView decides the width, TextView allocates more width by default if the app targets Android 15 (API level 35) or higher. You can enable or disable this behavior by calling the setUseBoundsForWidth API on TextView.

Because adding left padding might cause a misalignment for existing layouts, the padding is not added by default even for apps that target Android 15 or higher. However, you can add extra padding to preventing clipping by calling setShiftDrawingOffsetForStartOverhang.

The following examples show how these changes can improve text layout for some fonts and languages.

Standard layout for English text in a cursive font. Some of the letters are clipped. Here is the corresponding XML:

<TextView
    android:fontFamily="cursive"
    android:text="java" />
Layout for the same English text with additional width and padding. Here is the corresponding XML:

<TextView
    android:fontFamily="cursive"
    android:text="java"
    android:useBoundsForWidth="true"
    android:shiftDrawingOffsetForStartOverhang="true" />
Standard layout for Thai text. Some of the letters are clipped. Here is the corresponding XML:

<TextView
    android:text="คอมพิวเตอร์" />
Layout for the same Thai text with additional width and padding. Here is the corresponding XML:

<TextView
    android:text="คอมพิวเตอร์"
    android:useBoundsForWidth="true"
    android:shiftDrawingOffsetForStartOverhang="true" />

EditText için yerel ayara duyarlı varsayılan satır yüksekliği

In previous versions of Android, the text layout stretched the height of the text to meet the line height of the font that matched the current locale. For example, if the content was in Japanese, because the line height of the Japanese font is slightly larger than the one of a Latin font, the height of the text became slightly larger. However, despite these differences in line heights, the EditText element was sized uniformly, regardless of the locale being used, as illustrated in the following image:

Three boxes representing EditText elements that can contain text from English (en), Japanese (ja), and Burmese (my). The height of the EditText is the same, even though these languages have different line heights from each other.

For apps targeting Android 15 (API level 35), a minimum line height is now reserved for EditText to match the reference font for the specified Locale, as shown in the following image:

Three boxes representing EditText elements that can contain text from English (en), Japanese (ja), and Burmese (my). The height of the EditText now includes space to accommodate the default line height for these languages' fonts.

If needed, your app can restore the previous behavior by specifying the useLocalePreferredLineHeightForMinimum attribute to false, and your app can set custom minimum vertical metrics using the setMinimumFontMetrics API in Kotlin and Java.

Kamera ve medya içerikleri

Android 15, Android 15 veya sonraki sürümleri hedefleyen uygulamalarda kamera ve medya davranışında aşağıdaki değişiklikleri yapar.

Ses odağını istemeyle ilgili kısıtlamalar

Apps that target Android 15 (API level 35) must be the top app or running a foreground service in order to request audio focus. If an app attempts to request focus when it does not meet one of these requirements, the call returns AUDIOFOCUS_REQUEST_FAILED.

You can learn more about audio focus at Manage audio focus.

SDK dışı kısıtlamalar güncellendi

Android 15 includes updated lists of restricted non-SDK interfaces based on collaboration with Android developers and the latest internal testing. Whenever possible, we make sure that public alternatives are available before we restrict non-SDK interfaces.

If your app does not target Android 15, some of these changes might not immediately affect you. However, while it's possible for your app to access some non-SDK interfaces depending on your app's target API level, using any non-SDK method or field always carries a high risk of breaking your app.

If you are unsure if your app uses non-SDK interfaces, you can test your app to find out. If your app relies on non-SDK interfaces, you should begin planning a migration to SDK alternatives. Nevertheless, we understand that some apps have valid use cases for using non-SDK interfaces. If you can't find an alternative to using a non-SDK interface for a feature in your app, you should request a new public API.

To learn more about the changes in this release of Android, see Updates to non-SDK interface restrictions in Android 15. To learn more about non-SDK interfaces generally, see Restrictions on non-SDK interfaces.