Java WaitForgCTOMPLETE因原因禁用而被阻止89.851ms

我有两个版本的应用程序，一个付费版和一个免费版。两个版本共享通知服务的相同代码。一个版本正在工作，另一个版本似乎在运行代码并启动方法以显示警报，但这不会向用户显示，而是在logcat中显示：

20:23:51.926 I/art: WaitForGcToComplete blocked for 5.737ms for cause DisableMovingGc
04-20 20:23:54.531 I/art: Thread[5,tid=12452,WaitingInMainSignalCatcherLoop,Thread*=0xb7e9eec0,peer=0x32c0a0a0,"Signal Catcher"]: reacting to signal 3
04-20 20:23:54.755 I/art: Wrote stack traces to '/data/anr/traces.txt'

在应用程序的其他方面有很多不同之处，但最近增加的一个是mixpanel跟踪，我在过去看到它与垃圾收集问题有关。这在两个应用中都存在，但在每个应用中都有不同的跟踪

我已经查看了traces.txt文件，但老实说，它很大，我不确定我在找什么。我发现了这样的事情，但没有帮助：

"ActivityManager" prio=5 tid=16 TimedWaiting
  | group="main" sCount=1 dsCount=0 obj=0x12d4c9e0 self=0xb7e73020
  | sysTid=579 nice=-2 cgrp=default sched=0/0 handle=0xb7e73628
  | state=S schedstat=( 0 0 0 ) utm=2110 stm=2446 core=1 HZ=100
  | stack=0xa396a000-0xa396c000 stackSize=1036KB
  | held mutexes=
  at java.lang.Object.wait!(Native method)
  - waiting on <0x1b396375> (a com.android.server.am.ActivityManagerService$5)
  at java.lang.Object.wait(Object.java:422)
  at com.android.server.am.ActivityManagerService.dumpStackTraces(ActivityManagerService.java:4800)
  - locked <0x1b396375> (a com.android.server.am.ActivityManagerService$5)
  at com.android.server.am.ActivityManagerService.dumpStackTraces(ActivityManagerService.java:4777)
  at com.android.server.am.ActivityManagerService.appNotResponding(ActivityManagerService.java:5018)
  at com.android.server.am.BroadcastQueue$AppNotResponding.run(BroadcastQueue.java:171)
  at android.os.Handler.handleCallback(Handler.java:739)
  at android.os.Handler.dispatchMessage(Handler.java:95)
  at android.os.Looper.loop(Looper.java:135)
  at android.os.HandlerThread.run(HandlerThread.java:61)
  at com.android.server.ServiceThread.run(ServiceThread.java:46)

---

找到了bug。这是一个相当愚蠢的错误

事实证明，如果您的android:parentActivityName=等于活动名称（复制和粘贴输入错误），则会导致各种垃圾收集错误，除非您尝试发送通知，否则您可能不会注意到这些错误。谁知道呢

void sendNotification(String message) {
        Log.e(TAG, "send notification");

        /*NotificationCompat.Builder mBuilder =
                (NotificationCompat.Builder) new NotificationCompat.Builder(this)
                        .setSmallIcon(R.drawable.ic_notification_icon)
                        .setContentTitle(message)
                        .setContentText("since you last serviced your shocks")
                        .setColor(0xffCDDC39)
                        .setAutoCancel(true);
        Intent resultIntent = new Intent(this, ActivitiesActivity.class);
        TaskStackBuilder stackBuilder = TaskStackBuilder.create(this);
        stackBuilder.addParentStack(ActivitiesActivity.class);
        stackBuilder.addNextIntent(resultIntent);
        PendingIntent resultPendingIntent =
                stackBuilder.getPendingIntent(
                        0,
                        PendingIntent.FLAG_UPDATE_CURRENT
                );
        mBuilder.setContentIntent(resultPendingIntent);
        NotificationManager mNotificationManager =
                (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
        mNotificationManager.notify(mId, mBuilder.build());*/
    }