java - 如何仅在我的应用程序中获取正在运行的线程

Question

我正在尝试获取应用程序中所有 Activity/正在运行的线程。我写了下面发布的代码，我得到了下面发布的结果。实际上，发布的输出中的线程都不属于我的应用程序，除了

07-10 15:36:48.621 19333-19624/eu.men.m2sapp D/GcmIntentService: thread.toString():Thread[IntentService[GcmIntentService],5,main]

1) 数字 5 表示什么？

2)“getAllStackTraces”似乎检索了系统范围内的所有 Activity 线程，但我如何才能获取仅在我的应用程序中运行的线程？

代码:

Set<Thread> threadSet = Thread.getAllStackTraces().keySet();
Thread[] threadArray = threadSet.toArray(new Thread[threadSet.size()]);
Thread thread = null;
for (int i = 0; i < threadArray.length; i++) {
    thread = threadArray[i];
    Log.d(TAG, "thread.toString():" + thread.toString());
}

输出:

07-10 15:36:48.621 19333-19624/eu.men.m2sapp D/GcmIntentService: thread.toString():Thread[IntentService[GcmIntentService],5,main]
07-10 15:36:48.622 19333-19624/eu.men.m2sapp D/GcmIntentService: thread.toString():Thread[FinalizerWatchdogDaemon,5,system]
07-10 15:36:48.622 19333-19624/eu.men.m2sapp D/GcmIntentService: thread.toString():Thread[Timer-0,5,main]
07-10 15:36:48.622 19333-19624/eu.men.m2sapp D/GcmIntentService: thread.toString():Thread[RenderThread,5,main]
07-10 15:36:48.622 19333-19624/eu.men.m2sapp D/GcmIntentService: thread.toString():Thread[ReferenceQueueDaemon,5,system]
07-10 15:36:48.622 19333-19624/eu.men.m2sapp D/GcmIntentService: thread.toString():Thread[FinalizerDaemon,5,system]
07-10 15:36:48.622 19333-19624/eu.men.m2sapp D/GcmIntentService: thread.toString():Thread[Binder_3,5,main]
07-10 15:36:48.622 19333-19624/eu.men.m2sapp D/GcmIntentService: thread.toString():Thread[main,5,main]
07-10 15:36:48.622 19333-19624/eu.men.m2sapp D/GcmIntentService: thread.toString():Thread[Signal Catcher,5,system]
07-10 15:36:48.622 19333-19624/eu.men.m2sapp D/GcmIntentService: thread.toString():Thread[Binder_1,5,main]
07-10 15:36:48.622 19333-19624/eu.men.m2sapp D/GcmIntentService: thread.toString():Thread[Binder_2,5,main]
07-10 15:36:48.622 19333-19624/eu.men.m2sapp D/GcmIntentService: thread.toString():Thread[GCDaemon,5,system]
07-10 15:36:48.622 19333-19624/eu.men.m2sapp D/GcmIntentService: thread.toString():Thread[pool-1-thread-1,5,main]
07-10 15:36:48.622 19333-19624/eu.men.m2sapp D/GcmIntentService: thread.toString():Thread[JDWP,5,system]
07-10 15:36:48.623 19333-19624/eu.men.m2sapp D/GcmIntentService: thread.toString():Thread[HeapTrimmerDaemon,5,system]
07-10 15:36:48.623 19333-19624/eu.men.m2sapp D/GcmIntentService: thread.toString():Thread[Thread-52709,5,main]

Answer 1

Actually, none of the threads in the posted output belong to my App

所有这些线程都属于您的应用进程。大多数来自框架，而不是您的代码。

it seems that 'getAllStackTraces' retrieves all the active threads system-wide

不，它会检索您进程中的线程。

how can I get the threads that are only running in my App?

你已经是了。

what does number 5 indicates?

我认为这是线程优先级。