線程池和SystemClock

private ExecutorService executorService = Executors.newFixedThreadPool(5); // 固定五個線程來執行任務

 

SystemClock.sleep(2000);這個方法只是封裝了Thread.sleep,不會拋出中斷異常

 

SystemClock:

public static void sleep(long ms)
    {
        long start = uptimeMillis();
        long duration = ms;
        boolean interrupted = false;
        do {
            try {
                Thread.sleep(duration);
            }
            catch (InterruptedException e) {
                interrupted = true;
            }
            duration = start + ms - uptimeMillis();
        } while (duration > 0);
        
        if (interrupted) {
            // Important: we don't want to quietly eat an interrupt() event,
            // so we make sure to re-interrupt the thread so that the next
            // call to Thread.sleep() or Object.wait() will be interrupted.
            Thread.currentThread().interrupt();
        }
    }