Android中线程与Handler简单交互

     线程中run写入传给Handler数据。

Thread repeatThread = new Thread(repeateRunnable);

 private Runnable repeatRunnable = new Runnable() {
        @Override
        public void run() {
            SystemClock.sleep(loopTime);

            Message msg = new Message();
            msg.what = msg_flag;
            repeatHandler.sendMessage(msg);
        }
    };

private Handler repeatHandler = new Handler(new Handler.Callback() {
        @Override
        public boolean handleMessage(Message msg) {
            if (msg.what == START_LOOP) {
                mViewPager.setCurrentItem(mViewPager.getCurrentItem() + 1);
                
            }

            return false;

        }
    });