Android仿京东秒杀倒计时代码

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**count_down.xml**
<&＃63;xml version="1.0" encoding="utf-8"&＃63;>

 
  
  
  
   
   
   
   
   
  
 

//使用handler用于更新UI
private Handler handler = new Handler() {
  @Override
  public void handleMessage(Message msg) {
   super.handleMessage(msg);
   countDown();
   sendEmptyMessageDelayed(0, 1000);
  }
 };
 /**
  * 秒杀
  */
 private void countDown() {
  SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
  Date curDate = new Date(System.currentTimeMillis());
  String format = df.format(curDate);
  StringBuffer buffer = new StringBuffer();
  String substring = format.substring(0, 11);
  buffer.append(substring);
  Log.d("ccc", substring);
  Calendar calendar = Calendar.getInstance();
  int hour = calendar.get(Calendar.HOUR_OF_DAY);
  if (hour % 2 == 0) {
   mMiaoshaTimeTv.setText(hour + "点场");
   buffer.append((hour + 2));
   buffer.append(":00:00");
  } else {
   mMiaoshaTimeTv.setText((hour - 1) + "点场");
   buffer.append((hour + 1));
   buffer.append(":00:00");
  }
  String totime = buffer.toString();
  try {
   java.util.Date date = df.parse(totime);
   java.util.Date date1 = df.parse(format);
   long defferenttime = date.getTime() - date1.getTime();
   long days = defferenttime / (1000 * 60 * 60 * 24);
   long hours = (defferenttime - days * (1000 * 60 * 60 * 24)) / (1000 * 60 * 60);
   long minute = (defferenttime - days * (1000 * 60 * 60 * 24) - hours * (1000 * 60 * 60)) / (1000 * 60);
   long secOnds= defferenttime % 60000;
   long secOnd= Math.round((float) seconds / 1000);
   mMiaoshaShiTv.setText("0" + hours + "");
   if (minute >= 10) {
    mMiaoshaMinterTv.setText(minute + "");
   } else {
    mMiaoshaMinterTv.setText("0" + minute + "");
   }
   if (second >= 10) {
    mMiaoshaSecondTv.setText(second + "");
   } else {
    mMiaoshaSecondTv.setText("0" + second + "");
   }
  } catch (ParseException e) {
   e.printStackTrace();
  }
 }

private void startCountDown() {
  handler.sendEmptyMessage(0);
 }