android：线程工具类

public class ThreadPoolUtils {
    //设备cpu核数
    private final int CORE_POOL_SIZE = Runtime.getRuntime().availableProcessors();
    //线程池最大线程数
    private final int MAXIMUM_POOL_SIZE = 16;
    //空闲线程存活时间
    private static final int KEEP_ALIVE_SECONDS =3;

    //io型线程设置
    private static final ThreadFactory ioThreadFactory = new ThreadFactory() {
        private final AtomicInteger mCount = new AtomicInteger(1);

        @Override
        public Thread newThread(Runnable r) {
            Thread thread = new Thread(r,"IO #" +mCount.getAndIncrement());
            Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
            return thread;
        }
    };

    //cpu计算型线程设置
    private static final ThreadFactory cpuThreadFactory = new ThreadFactory() {
        private final AtomicInteger mCount = new AtomicInteger(1);

        @Override
        public Thread newThread(Runnable r) {
            Thread thread = new Thread(r,"CPU #" +mCount.getAndIncrement());
            Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT);
            return thread;
        }
    };

    //io与cpu混合型
    private static final ThreadFactory miscThreadFactory = new ThreadFactory() {
        private final AtomicInteger mCount = new AtomicInteger(1);

        @Override
        public Thread newThread(Runnable r) {
            Thread thread = new Thread(r,"MISC #" +mCount.getAndIncrement());
            Process.setThreadPriority(Process.THREAD_PRIORITY_LOWEST);
            return thread;
        }
    };

    public Executor ioExecutor = new ThreadPoolExecutor(MAXIMUM_POOL_SIZE,MAXIMUM_POOL_SIZE,KEEP_ALIVE_SECONDS, TimeUnit.SECONDS,new SynchronousQueue<Runnable>(),ioThreadFactory);

    public Executor cpuExecutor = new ThreadPoolExecutor(CORE_POOL_SIZE,CORE_POOL_SIZE,KEEP_ALIVE_SECONDS, TimeUnit.SECONDS,new SynchronousQueue<Runnable>(),cpuThreadFactory);

    public Executor miscExecutor = Executors.newFixedThreadPool(3,miscThreadFactory);

    public Executor getIoExecutor() {
        return ioExecutor;
    }

    public Executor getCpuExecutor() {
        return cpuExecutor;
    }

    public Executor getMiscExecutor() {
        return miscExecutor;
    }

    public void ioExecute(Runnable runnable){ ioExecutor.execute(runnable);}
}

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