Android的线程池来管理多个蓝牙HANDELING线程？ [英] Android Thread Pool to manage multiple bluetooth handeling threads?
问题描述
所以我有有它的主机和客户端我的Android蓝牙应用。问题是，因为我正在多个连接，我需要一个线程来处理每个连接。这是所有milk'n'cookies，所以我想我会坚持所有线程在数组中。一个小小的研究说要这样做更好的方法是使用一个线程池，但我似乎无法让我的头围绕如何工作的。此外，它实际上甚至可以在一个数组来保存线程？
So I have my Android Bluetooth application that has it's host and clients. The problem is, because I am making multiple connections, I need a thread to handle each connection. That's all milk'n'cookies, so I thought I'd stick all the threads in an array. A little research says a better method to doing this is using a Thread Pool, but I can't seem to get my head around how that works. Also, is it actually even possible to hold threads in an array?
推荐答案
一个线程池周围的想法，因为一遍一遍创建线程是耗时的建成，我们应该尝试尽可能多地回收。因此，一个线程池是执行的作业，但是，当他们完成工作不被破坏，而是回归池的线程collection，要么采取另外的工作或处于闲置状态，如果没有什么可以做的。
A thread pool is built around the idea that, since creating threads over and over again is time-consuming, we should try to recycle them as much as possible. Thus, a thread pool is a collection of threads that execute jobs, but are not destroyed when they finish a job, but instead "return to the pool" and either take another job or sit idle if there is nothing to do.
通常情况下，其实现是线程安全的队列中，程序员把工作和一堆被执行管理线程保持轮询（我没有暗示忙着纺必然）队列工作。
Usually the underlying implementation is a thread-safe queue in which the programmer puts jobs and a bunch of threads managed by the implementation keep polling (I'm not implying busy-spinning necessarily) the queue for work.
在Java的线程池再由的ExecutorService 类可以是psented $ P $：
In Java the thread pool is represented by the ExecutorService class which can be:
- 固定 - 创建一个线程池有固定数量的线程
- 缓存 - 动态地创建和销毁线程需要
- 单 - 使用一个线程池
请注意，由于线程池中的线程以上（即再循环），在一个固定的线程池的情况下，不建议所描述的方式运作有那些阻塞I / O操作的工作，因为线程采取这些工作将从池中被有效地去除，直到他们完成这项工作，因此你可能有死锁。
Note that, since thread pool threads operate in the manner described above (i.e. are recycled), in the case of a fixed thread pool it is not recommended to have jobs that do blocking I/O operations, since the threads taking those jobs will be effectively removed from the pool until they finish the job and thus you may have deadlocks.
至于线程的阵列，它的简单，只要创建任何对象数组：
As for the array of threads, it's as simple as creating any object array:
Thread[] threads = new Thread[10]; // array of 10 threads
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