WorkManager 中的ForegroundServiceStartNotAllowedException

Question

我们使用的是

2.8.1

的

WorkManager

版本，我们遇到了大量崩溃，如下所示：

Fatal Exception: android.app.ForegroundServiceStartNotAllowedException: Service.startForeground() not allowed due to mAllowStartForeground false: service com.{app name}.android/androidx.work.impl.foreground.SystemForegroundService
at android.app.ForegroundServiceStartNotAllowedException$1.createFromParcel(ForegroundServiceStartNotAllowedException.java:54)
at android.app.ForegroundServiceStartNotAllowedException$1.createFromParcel(ForegroundServiceStartNotAllowedException.java:50)
at android.os.Parcel.readParcelableInternal(Parcel.java:5016)
at android.os.Parcel.readParcelable(Parcel.java:4998)
at android.os.Parcel.createExceptionOrNull(Parcel.java:3178)
at android.os.Parcel.createException(Parcel.java:3167)
at android.os.Parcel.readException(Parcel.java:3150)
at android.os.Parcel.readException(Parcel.java:3092)
at android.app.IActivityManager$Stub$Proxy.setServiceForeground(IActivityManager.java:6960)
at android.app.Service.startForeground(Service.java:863)
at androidx.work.impl.foreground.SystemForegroundService$Api31Impl.startForeground(SystemForegroundService.java:194)
at androidx.work.impl.foreground.SystemForegroundService$1.run(SystemForegroundService.java:130)
at android.os.Handler.handleCallback(Handler.java:959)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loopOnce(Looper.java:232)
at android.os.Looper.loop(Looper.java:317)
at android.app.ActivityThread.main(ActivityThread.java:8592)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:580)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:878)

在

Worker

中，我们在 try-catch 块中调用

setForeground

，并捕获

IllegalStateException

:

try {
    setForeground(createForegroundInfoSafely(notificationId, notification))
} catch (e: IllegalStateException) {
    Logger.SaveEx(
        e,
        "$TAG Exception on call to setForeground() in createOrUpdateInitialNotification()" +
                " with progress $progress."
    )
}

日志显示第一行捕获了异常。

Tue Jul 09 2024 10:01:52 GMT-0300 (Brasilia Standard Time) | [DownloadWorker] Exception on call to setForeground() in createOrUpdateInitialNotification() with progress 100.
Tue Jul 09 2024 10:01:52 GMT-0300 (Brasilia Standard Time) | An exception occurred: android.app.ForegroundServiceStartNotAllowedException: startForegroundService() not allowed due to mAllowStartForeground false: service com.{app name}.android/androidx.work.impl.foreground.SystemForegroundService
Tue Jul 09 2024 10:01:52 GMT-0300 (Brasilia Standard Time) | Stacktrace: android.app.ForegroundServiceStartNotAllowedException: startForegroundService() not allowed due to mAllowStartForeground false: service com.{app name}.android/androidx.work.impl.foreground.SystemForegroundService   at android.app.ForegroundServiceStartNotAllowedException$1.createFromParcel(ForegroundServiceStartNotAllowedException.java:54)  at android.app.ForegroundServiceStartNotAllowedException$1.createFromParcel(ForegroundServiceStartNotAllowedException.java:50)  at android.os.Parcel.readParcelable(Parcel.java:3334)   at android.os.Parcel.createExceptionOrNull(Parcel.java:2421)    at android.os.Parcel.createException(Parcel.java:2410)  at android.os.Parcel.readException(Parcel.java:2393)    at android.os.Parcel.readException(Parcel.java:2335)    at android.app.IActivityManager$Stub$Proxy.startService(IActivityManager.java:5974)     at android.app.ContextImpl.startServiceCommon(ContextImpl.java:1848)    at android.app.ContextImpl.startForegroundService(ContextImpl.java:1824)    at android.content.ContextWrapper.startForegroundService(ContextWrapper.java:781)   at androidx.core.content.ContextCompat$Api26Impl.startForegroundService(SourceFile:1)   at androidx.core.content.ContextCompat.startForegroundService(SourceFile:7)     at androidx.work.impl.Processor.startForeground(SourceFile:82)  at androidx.work.impl.utils.WorkForegroundUpdater$1.run(SourceFile:39)  at androidx.work.impl.utils.SerialExecutorImpl$Task.run(SourceFile:3)   at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:644)  at java.lang.Thread.run(Thread.java:1012) Caused by: android.os.RemoteException: Remote stack trace:    at com.android.server.am.ActiveServices.startServiceLocked(ActiveServices.java:726)     at com.android.server.am.ActiveServices.startServiceLocked(ActiveServices.java:651)     at com.android.server.am.ActivityManagerService.startService(ActivityManagerService.java:12121)     at android.app.IActivityManager$Stub.onTransact(IActivityManager.java:2521)     at com.android.server.am.ActivityManagerService.onTransact(ActivityManagerService.java:2534)

我是否遗漏了什么，或者这个异常不应该由

WorkManager

抛出？

Answer 1

我猜你最近更新到了 targetSdk 34，现在你需要指定前台服务类型（对于 WorkManagers 内部服务也是如此，这是你的错误来源）

https://developer.android.com/about/versions/14/changes/fgs-types-required

因此，请在上面的链接上找到合适的服务类型（取决于您的服务从事什么类型的工作）。

然后，例如使用“dataSync”服务类型，您将需要：

1. Android WorkManager 服务中的清单文件中包含前台服务类型

    <service
    android:name="androidx.work.impl.foreground.SystemForegroundService"
        android:foregroundServiceType="dataSync"
        />

2. 同时添加清单权限

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

3. 在工人 ForegroundInfo 中提供服务作为参数

private fun createForegroundInfo(): ForegroundInfo {
    return if(SDK_INT>= Q) { ForegroundInfo(15, sendNotification(), ServiceInfo.FOREGROUND_SERVICE_TYPE_DATA_SYNC)
    }else{
        ForegroundInfo(15, sendNotification())
    }
}