定时任务

// 定时更换广告。5秒一次

            timer = new Timer();

            timer.scheduleAtFixedRate(new TimerTask() {

 

                @Override

                public void run() {

                    // 判断是否在滑动ING

                    if (!isPagerScrolling) {

 

                        Message message = Message.obtain();

                        ad_index = mPager.getCurrentItem();

                        if (ad_index < ad_count) {

                            ad_index++;

                        } else {

                            ad_index = 0;

                        }

                        message.arg1 = ad_index;

                        message.what = CHANGE_AD;

                        handler.sendMessage(message);

                    }

                }

            }, 0, 1000 * 5);