如果你让你的应用在android 12上运行，有一个新的PendingIntent可变标志。如果你不希望你的PendingIntent被静音，使用

Java

PendingIntent updatedPendingIntent = PendingIntent.getActivity(
   applicationContext,
   NOTIFICATION_REQUEST_CODE,
   updatedIntent,
   PendingIntent.FLAG_IMMUTABLE | PendingIntent.FLAG_UPDATE_CURRENT // setting the mutability flag 
)

科特林

val updatedPendingIntent = PendingIntent.getActivity(
   applicationContext,
   NOTIFICATION_REQUEST_CODE,
   updatedIntent,
   PendingIntent.FLAG_IMMUTABLE or PendingIntent.FLAG_UPDATE_CURRENT // setting the mutability flag 
)

如果你想要你的PendingIntent静音使用以下方法:

Java

PendingIntent updatedPendingIntent = PendingIntent.getActivity(
   applicationContext,
   NOTIFICATION_REQUEST_CODE,
   updatedIntent,
   PendingIntent.FLAG_MUTABLE | PendingIntent.FLAG_UPDATE_CURRENT // setting the mutability flag 
)

科特林

val updatedPendingIntent = PendingIntent.getActivity(
   applicationContext,
   NOTIFICATION_REQUEST_CODE,
   updatedIntent,
   PendingIntent.FLAG_MUTABLE or PendingIntent.FLAG_UPDATE_CURRENT // setting the mutability flag 
)

最后实现这个依赖

//Work Manager dependency
implementation 'androidx.work:work-runtime:2.7.1'

这是Work库的问题。 即使是最新版本也受到2.7.0-alpha04的影响

https://issuetracker.google.com/issues/194108978

作为临时解决方案-在gradle中注释掉包含“work”依赖项，并在整个项目中删除使用该类。至少这样你可以正常运行应用程序，并在其他功能和领域工作....

在我的例子中，它也是由使用旧WorkManager版本的第三方库强制所有依赖的新Android Work版本在你的根构建中使用这个。gradle文件:

allproject {
  project.configurations.all {
    resolutionStrategy {
      force 'androidx.work:work-runtime:2.7.0'
    }
  }
}

final int flag =  Build.VERSION.SDK_INT >= Build.VERSION_CODES.M ? PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_IMMUTABLE : PendingIntent.FLAG_UPDATE_CURRENT;
PendingIntent pendingIntent = PendingIntent.getActivity(context, PENDING_INTENT_REQUEST_CODE, notificationIntent, flag);

来自:

https://developer.android.com/reference/android/app/PendingIntent#FLAG_MUTABLE

"Up until Build.VERSION_CODES.R, PendingIntents are assumed to be mutable by default, unless FLAG_IMMUTABLE is set. Starting with Build.VERSION_CODES.S, it will be required to explicitly specify the mutability of PendingIntents on creation with either (@link #FLAG_IMMUTABLE} or FLAG_MUTABLE. It is strongly recommended to use FLAG_IMMUTABLE when creating a PendingIntent. FLAG_MUTABLE should only be used when some functionality relies on modifying the underlying intent, e.g. any PendingIntent that needs to be used with inline reply or bubbles."

为了保持相同的行为，像每天改变任何“PendingIntent。FLAG_MUTABLE |任何东西"

当创建/检索一个挂起的意图/活动，服务，提供者，接收者

值得寻找的地方:

PendingIntent.getBroadcast(...

.getPendingIntent(...

PendingIntent.getService

PendingIntent.getActivity

如果你的应用程序使用androidx。工作确保至少升级到:

implementation 'androidx.work:work-runtime-ktx:2.7.0-alpha05'

他们在alpha02中修复了一个与SDK 12中所有这些更改相关的错误。

下面是我在KOTLIN中从30移动到33的用例。

1. 添加媒体依赖

implementation "androidx.media:media:1.4.1"

2. 更新工作管理器

 implementation "androidx.work:work-runtime-ktx:2.7.0"

3.更新不变的

fun getImmutableFlag() = if(isAndroidAPI31())  PendingIntent.FLAG_IMMUTABLE or PendingIntent.FLAG_UPDATE_CURRENT else 0

fun isAndroidAPI31() = android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.S

private fun createOpenAppIntent(context: Context): PendingIntent {
        val intent = Intent(context, MainActivity::class.java).apply {
            flags = Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_SINGLE_TOP
        }
        return PendingIntent.getActivity(context, 0, intent, getImmutableFlag())
    }

4. 如果在所有活动、服务、提供者、接收者中未添加，则在清单中添加导出标签

android:exported="true"

希望这能起作用，祝你愉快。