Andorid实现精确到天时分秒的抢购倒计时

package com.qust.widght;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;

import android.annotation.SuppressLint;
import android.content.Context;
import android.os.Handler;
import android.os.Message;
import android.util.AttributeSet;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;

import com.qust.rushbuycountdowntimerview.R;

@SuppressLint("HandlerLeak")
public class RushBuyCountDownTimerView extends LinearLayout {

 // 天，十位
 private TextView tv_day_decade;
 // 天，个位
 private TextView tv_day_unit;
 // 小时，十位
 private TextView tv_hour_decade;
 // 小时，个位
 private TextView tv_hour_unit;
 // 分钟，十位
 private TextView tv_min_decade;
 // 分钟，个位
 private TextView tv_min_unit;
 // 秒，十位
 private TextView tv_sec_decade;
 // 秒，个位
 private TextView tv_sec_unit;

 private Context context;
 private int day_decade;
 private int day_unit;

 private int hour_decade;
 private int hour_unit;
 private int min_decade;
 private int min_unit;
 private int sec_decade;
 private int sec_unit;
 // 计时器
 private Timer timer;

 private Handler handler = new Handler() {

  public void handleMessage(Message msg) {
   countDown();
  };
 };
 private int day = 0;
 private int hour = 0;
 private int min = 0;
 private int sec = 0;

 public RushBuyCountDownTimerView(Context context, AttributeSet attrs) {
  super(context, attrs);

  this.cOntext= context;
  LayoutInflater inflater = (LayoutInflater) context
    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
  View view = inflater.inflate(R.layout.view_countdowntimer, this);

  tv_hour_decade = (TextView) view.findViewById(R.id.tv_hour_decade);
  tv_hour_unit = (TextView) view.findViewById(R.id.tv_hour_unit);
  tv_day_decade = (TextView) view.findViewById(R.id.tv_day_decade);
  tv_day_unit = (TextView) view.findViewById(R.id.tv_day_unit);
  tv_min_decade = (TextView) view.findViewById(R.id.tv_min_decade);
  tv_min_unit = (TextView) view.findViewById(R.id.tv_min_unit);
  tv_sec_decade = (TextView) view.findViewById(R.id.tv_sec_decade);
  tv_sec_unit = (TextView) view.findViewById(R.id.tv_sec_unit);

 }

 /**
  * 
  * @Description: 开始计时
  * @param
  * @return void
  * @throws
  */
 public void start() {

  if (timer == null) {
   timer = new Timer();
   timer.schedule(new TimerTask() {

    @Override
    public void run() {
     handler.sendEmptyMessage(0);
    }
   }, 0, 1000);
  }
 }

 /**
  * 
  * @Description: 停止计时
  * @param
  * @return void
  * @throws
  */
 public void stop() {
  if (timer != null) {
   timer.cancel();
   timer = null;
  }
 }

 // 如果:sum = 12345678
 public void addTime(int sum) {

  // 求出天数
  int day = sum / 60 / 60 / 24;
  // int day_time = sum % 24;
  Log.e("小时", day + "");
  Log.e("小时", sum % 24 + "");

  // 求出小时
  // int hour = day_time / 60;
  // int hour_time = day_time % 60;
  //
  // Log.e("小时", hour + "");
  //
  // 先获取个秒数值
  int sec = sum % 60;
  // 如果大于60秒，获取分钟。（秒数）
  int sec_time = sum / 60;
  // 再获取分钟
  int min = sec_time % 60;
  // 如果大于60分钟，获取小时（分钟数）。
  int min_time = sec_time / 60;
  // 获取小时
  int hour = min_time % 24;
  // 剩下的自然是天数
  day = min_time / 24;

  //
  // Log.e("分钟", min + "");
  //
  // // 求出秒数
  // Log.e("秒数", sec + "");
  setTime(day, hour, min, sec);

 }

 /**
  * @throws Exception
  * 
  * @Description: 设置倒计时的时长
  * @param
  * @return void
  * @throws
  */
 public void setTime(int day, int hour, int min, int sec) {
 //这里的天数不写也行，我写365
  if (day >= 365 || hour >= 24 || min >= 60 || sec >= 60 || day <0
    || hour <0 || min <0 || sec <0) {
   throw new RuntimeException(
     "Time format is error,please check out your code");
  }
  // day 的十位数
  day_decade = day / 10;
  // day的个位数,这里求余就行
  day_unit = day - day_decade * 10;

  hour_decade = hour / 10;
  hour_unit = hour - hour_decade * 10;

  min_decade = min / 10;
  min_unit = min - min_decade * 10;

  sec_decade = sec / 10;
  sec_unit = sec - sec_decade * 10;
  // 第个time 进行初始化
  timeClean();

 }

 private void timeClean() {
  tv_day_decade.setText(day_decade + "");
  tv_day_unit.setText(day_unit + "");
  tv_hour_decade.setText(hour_decade + "");
  tv_hour_unit.setText(hour_unit + "");
  tv_min_decade.setText(min_decade + "");
  tv_min_unit.setText(min_unit + "");
  tv_sec_decade.setText(sec_decade + "");
  tv_sec_unit.setText(sec_unit + "");
 }

 /**
  * 
  * @Description: 倒计时
  * @param
  * @return boolean
  * @throws
  */
 public Boolean countDown() {

  if (isCarry4Unit(tv_sec_unit)) {
   if (isCarry4Decade(tv_sec_decade)) {

    if (isCarry4Unit(tv_min_unit)) {
     if (isCarry4Decade(tv_min_decade)) {

      if (isDay4Unit(tv_hour_unit)) {
       if (isDay4Decade(tv_hour_decade)) {

        if (isDay4Unit(tv_day_unit)) {
         if (isDay4Decade(tv_day_decade)) {
          Toast.makeText(context, "时间到了",
            Toast.LENGTH_SHORT).show();
          tv_day_decade.setText("0");
          tv_day_unit.setText("0");
          tv_hour_decade.setText("0");
          tv_hour_unit.setText("0");
          tv_min_decade.setText("0");
          tv_min_unit.setText("0");
          tv_sec_decade.setText("0");
          tv_sec_unit.setText("0");
          stop();
          return false;

         }
        }
       }
      }
     }
    }
   }
  }
  return false;
 }

 /**
  * 进行——时分秒，判断个位数
  * 
  * @Description: 变化十位，并判断是否需要进位
  * @param
  * @return boolean
  * @throws
  */
 private boolean isCarry4Decade(TextView tv) {

  int time = Integer.valueOf(tv.getText().toString());
  time = time - 1;
  if (time <0) {
   time = 5;
   tv.setText(time + "");
   return true;
  } else {
   tv.setText(time + "");
   return false;
  }

 }

 /**
  * 进行——时分秒，判断个位数
  * 
  * @Description: 变化个位，并判断是否需要进位
  * @param
  * @return boolean
  * @throws
  */
 private boolean isCarry4Unit(TextView tv) {

  int time = Integer.valueOf(tv.getText().toString());
  time = time - 1;
  if (time <0) {
   time = 9;
   tv.setText(time + "");
   return true;
  } else {
   tv.setText(time + "");
   return false;
  }

 }

 /**
  * 进行——时分秒，判断个位数
  * 
  * @Description: 变化十位，并判断是否需要进位
  * @param
  * @return boolean
  * @throws
  */
 private boolean isDay4Unit(TextView tv) {

  int time = Integer.valueOf(tv.getText().toString());
  time = time - 1;
  if (time <0) {
   time = 3;
   tv.setText(time + "");
   return true;
  } else {
   tv.setText(time + "");
   return false;
  }

 }

 /**
  * 进行——时分秒，判断个位数
  * 
  * @Description: 变化个位，并判断是否需要进位
  * @param
  * @return boolean
  * @throws
  */
 private boolean isDay4Decade(TextView tv) {

  int time = Integer.valueOf(tv.getText().toString());
  time = time - 1;
  if (time <0) {
   time = 2;
   tv.setText(time + "");
   return true;
  } else {
   tv.setText(time + "");
   return false;
  }

 }

}

package com.qust.widght;

import android.app.Activity;
import android.os.Bundle;
import android.widget.Toast;

import com.qust.rushbuycountdowntimerview.R;

public class MainActivity extends Activity {

 private RushBuyCountDownTimerView timerView;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  timerView = (RushBuyCountDownTimerView) findViewById(R.id.timerView);
  // 设置时间(day,hour,min,sec)
  // timerView.setTime(0, 0, 0, 5);
  int sum = 60;
  // 把秒数传到倒计时方法中。。
  timerView.addTime(sum);
  // 开始倒计时
  timerView.start();
 }
}

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