MediaSessionCompat:Targeting S+（31及以上版本）要求在创建PendingIntent时指定FLAG_IMMUTABLE或FLAG_MUTABLE之一

Question

我正在尝试将我的应用程序更新到 Android SDK 31，但我遇到了 MediaSessionCompat 问题。

我有一个扩展 MediaBrowserServiceCompat() 的 MediaService，在该服务的 onCreate 方法中我初始化了 MediaSessionCompat。

override fun onCreate() {
  super.onCreate()
  mediaSession = MediaSessionCompat(this, TAG).apply {
    setCallback(mediaSessionCallback)
    isActive = true
  }
...

但是我有以下错误

java.lang.RuntimeException: Unable to create service com.radio.core.service.MediaService: java.lang.IllegalArgumentException: com.xxx.xxx: Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified when creating a PendingIntent.
    Strongly consider using FLAG_IMMUTABLE, only use FLAG_MUTABLE if some functionality depends on the PendingIntent being mutable, e.g. if it needs to be used with inline replies or bubbles.
        at android.app.ActivityThread.handleCreateService(ActivityThread.java:4498)
        at android.app.ActivityThread.access00(ActivityThread.java:250)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2064)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loopOnce(Looper.java:201)
        at android.os.Looper.loop(Looper.java:288)
        at android.app.ActivityThread.main(ActivityThread.java:7829)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:548)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:982)
     Caused by: java.lang.IllegalArgumentException: com.xxx.xxx: Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified when creating a PendingIntent.
    Strongly consider using FLAG_IMMUTABLE, only use FLAG_MUTABLE if some functionality depends on the PendingIntent being mutable, e.g. if it needs to be used with inline replies or bubbles.
        at android.app.PendingIntent.checkFlags(PendingIntent.java:375)
        at android.app.PendingIntent.getBroadcastAsUser(PendingIntent.java:645)
        at android.app.PendingIntent.getBroadcast(PendingIntent.java:632)
        at android.support.v4.media.session.MediaSessionCompat.<init>(MediaSessionCompat.java:567)
        at android.support.v4.media.session.MediaSessionCompat.<init>(MediaSessionCompat.java:537)
        at android.support.v4.media.session.MediaSessionCompat.<init>(MediaSessionCompat.java:501)
        at android.support.v4.media.session.MediaSessionCompat.<init>(MediaSessionCompat.java:475)
        at com.radio.core.service.MediaService.onCreate(MediaService.kt:63)
        at android.app.ActivityThread.handleCreateService(ActivityThread.java:4485)
            ... 9 more

我使用的是最新版本的媒体库（“androidx.media:media:1.4.0”），它能够处理来自 Andriod“S”的这一要求。因为这是可能的在 MediaSessionCompact.java class.

中查看


// TODO(b/182513352): Use PendingIntent.FLAG_MUTABLE instead from S.
/**
 * @hide
 */
@RestrictTo(LIBRARY)
public static final int PENDING_INTENT_FLAG_MUTABLE = 
  Build.VERSION.CODENAME.equals("S") ? 0x02000000 : 0;

...

if (mbrComponent != null && mbrIntent == null) {
  // construct a PendingIntent for the media button
  Intent mediaButtonIntent = new Intent(Intent.ACTION_MEDIA_BUTTON);
  // the associated intent will be handled by the component being registered
  mediaButtonIntent.setComponent(mbrComponent);
  mbrIntent = PendingIntent.getBroadcast(context,
    0/* requestCode, ignored */, mediaButtonIntent,
    PENDING_INTENT_FLAG_MUTABLE);
}

演示问题的源代码 - https://github.com/adelinolobao/issue-media-session-compat

你们知道我该如何修复这个错误吗？

Answer 1

如果您的应用以 Android12 为目标，您必须指定应用创建的每个 PendingIntent 对象的可变性。

在您的例子中，android.support.v4.media.session.MediaSessionCompat 负责在 MediaSessionCompat 初始化期间创建 PendingItent。

解法： 幸运的是，MediaSessionCompat class 还有一个额外的 @constructor，所以我们可以将 pendingItent 作为参数传递。如果我们为 component 参数传递 null，它将在库中初始化。

override fun onCreate() {
        super.onCreate()

        val mediaButtonIntent = Intent(Intent.ACTION_MEDIA_BUTTON)
        val pendingItent = PendingIntent.getBroadcast(
            baseContext,
            0, mediaButtonIntent,
            PendingIntent.FLAG_IMMUTABLE
        )

        mediaSession = MediaSessionCompat(baseContext, TAG, null, pendingItent).also {
            it.isActive = true
        }

        sessionToken = mediaSession.sessionToken
        packageValidator = PackageValidator(this@MediaService, R.xml.allowed_media_browser_callers)
    }

源代码： https://github.com/dautovicharis/issue-media-session-compat

更新：感谢转至：

CommonsWare -> 指出库需要根据 TODO(b/182513352).
Adelino -> For providing release note link where we can see that FLAG_IMMUTABLE is supported in 1.3.0-rc02

在版本 1.3.0 there were new changes in MediaSessionCompat 中，根据 TODO(b/182513352) 评论，我们可以清楚地看到与 Android 12 相关的内容缺失。

在发布新的 androidx.media:media: 之前，使用我提供的解决方法应该可以正常工作。

更新：我们希望 TODO(b/182513352) 将在即将发布的版本中得到修复。在那之前，我们可以使用 implementation "androidx.media:media:1.3.0-rc02" 支持 FLAG_IMMUTABLE。

Answer 2

如果您没有在任何地方使用 PendingIntent。该问题可能会通过添加或更新此依赖关系得到解决

    // required to avoid crash on Android 12 API 31
    implementation 'androidx.work:work-runtime-ktx:2.7.0'

这解决了我的问题。

Answer 3

解决了这个错误 刚刚 PendingIntent.FLAG_MUTABLE 用于 Android 版本 12 或 S

PendingIntent pendingIntent = null;
    if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.S) {
        pendingIntent = PendingIntent.getActivity
               (this, 0, notificationIntent, PendingIntent.FLAG_MUTABLE);
    }
    else
    {
         pendingIntent = PendingIntent.getActivity
                (this, 0, notificationIntent, PendingIntent.FLAG_ONE_SHOT);
    }

Answer 4

对于使用 Java 的用户：

将以下行添加到 dependencies 下的 build.gradle(app)。

dependencies {
  // ...
  implementation 'androidx.work:work-runtime:2.7.1'
}

Answer 5

如果您至少更新到 1.4.1 版本，现在应该可以修复此问题

https://developer.android.com/jetpack/androidx/releases/media#media-1.4.1

Version 1.4.1 August 4, 2021

androidx.media:media:1.4.1 is released. Version 1.4.1 contains these commits.

Bug Fixes

Fix mutability flag for creating PendingIntent to prevent crash when targeting Android S.

Fix ClassVerificationFailure for NotificationCompat.MediaStyle.

Answer 6

对我来说，我必须升级

    liteImplementation "com.google.android.gms:play-services-ads:20.4.0"

至

    liteImplementation "com.google.android.gms:play-services-ads:20.6.0"

显然 play-services-ads:20.4.0 依赖于不支持 sdk 31 的 work-runtime 版本。

Answer 7

如果您没有在您的应用中使用挂起的 Intent，请试试这个。实施 'androidx.work:work-runtime-ktx:2.7.0'

else 如果您使用的是待定意图，则更改此

pendingIntent = PendingIntent.getActivity(
                        this,
                        0, intentToLaunchThisActivityFromNotification,
                        PendingIntent.FLAG_UPDATE_CURRENT);

至

`

if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.S) {

 

               pendingIntent = PendingIntent.getActivity(
                        this,
                        0, intentToLaunchThisActivityFromNotification,
                        PendingIntent.FLAG_IMMUTABLE);
            }
            else
            {
                 pendingIntent = PendingIntent.getActivity(
                        this,
                        0, intentToLaunchThisActivityFromNotification,
                        PendingIntent.FLAG_UPDATE_CURRENT);
            }`

Answer 8

将以下行添加到 build.gradle(app)

implementation 'androidx.work:work-runtime:2.7.1'

将以下权限添加到 Manifest.xml

<uses-permission android:name="android.permission.SCHEDULE_EXACT_ALARM"/>

修改待定意向如下

if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.S) { alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_DAY, PendingIntent.getBroadcast(getApplicationContext(), 0, alertIntent, PendingIntent.FLAG_MUTABLE)); } else { alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_DAY, PendingIntent.getBroadcast(getApplicationContext(), 0, alertIntent, PendingIntent.FLAG_UPDATE_CURRENT)); }

Answer 9

我在将 SdkVersion 更改为 31 后更新了您的库，然后错误消失了

MediaSessionCompat:Targeting S+（31及以上版本）要求在创建PendingIntent时指定FLAG_IMMUTABLE或FLAG_MUTABLE之一

MediaSessionCompat:Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified when creating a PendingIntent

java

android

android-mediaplayer

kotlin

android-studio

对于使用 Java 的用户：