RemoteServiceException:startForeground的错误通知:java.util.ConcurrentModificationException [英] RemoteServiceException: Bad notification for startForeground: java.util.ConcurrentModificationException

问题描述

android.app.RemoteServiceException: Bad notification for startForeground: java.util.ConcurrentModificationException
  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2204)
  at android.os.Handler.dispatchMessage(Handler.java:108)
  at android.os.Looper.loop(Looper.java:166)
  at android.app.ActivityThread.main(ActivityThread.java:7523)
  at java.lang.reflect.Method.invoke(Method.java:-2)
  at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:245)
  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:921)

我已经收到这个崩溃报告很长时间了.看来这仅发生在Android 8.0.0上.

I've been receiving this crash report for quite some time. It seems that this only happens on Android 8.0.0.

@Synchronized
override fun toForeground(id: Int) {
    fun action() {
        startForeground(id, builder?.build())
    }
    if (Looper.myLooper() === Looper.getMainLooper()) {
        action()
    } else {
        Handler(Looper.getMainLooper()).post { action() }
    }
}

每个频道均已设置，并且该应用程序可以在Android 8.0.0和更高版本的设备上运行，并且在测试过程中没有任何问题，除非我无法重现崩溃.

Every channel has set up and the app can be run on Android 8.0.0 and later devices without any problem during testing except I cannot reproduce the crash.

我想知道为什么会发生此崩溃以及如何解决它.

I'm wondering why this crash happens and how to fix it.

谢谢.

推荐答案

我也在Android 8.0.0设备上随机遇到此崩溃.

I also face this crash on Android 8.0.0 devices randomly.

查看AOSP源代码似乎是由于以下这一行导致的:

Looking into AOSP source code it seems to result from this line: http://androidxref.com/8.0.0_r4/xref/frameworks/base/services/core/java/com/android/server/am/ServiceRecord.java#540:

public void postNotification() {
...
} catch (RuntimeException e) {
    Slog.w(TAG, "Error showing notification for service", e);
    // If it gave us a garbage notification, it doesn't
    // get to be foreground.
    ams.setServiceForeground(name, ServiceRecord.this,
            0, null, 0);
    ams.crashApplication(appUid, appPid, localPackageName, -1,
            "Bad notification for startForeground: " + e);
}

不确定该catch块上方try块中的确切行会导致它，但是我假设AOSP本身存在错误.它与通知异步运行. 因此，在AOSP也在其上运行的同时，应用程序更新其通知的机会非常高.

Not sure what line exactly in the try block above this catch block causes it, but I assume a bug in AOSP itself. It operates with the notification asynchronously. So the chance that the app updates its notification while AOSP also operates on it, is quite high.

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