实现倒计时、计算通话结束时距离现在过了多久

		String strTime = "";
        Date callDate = callRecord.getCallDate();//通话结束时时间
        long callTime = callDate.getTime();//返回通话结束时时间毫秒值
        long currentTimeMillis = System.currentTimeMillis();//当前时间毫秒值
        // 小于60分钟
        if ((currentTimeMillis - callTime) / 1000 / 60 < 60) {
        	// 小于1分钟
            if (((currentTimeMillis - callTime) / 1000 / 60) == 0) {
                strTime = "刚刚";
            } else {
                strTime = ((currentTimeMillis - callTime) / 1000 / 60) + "分钟前";
            }
        } else if ((currentTimeMillis - callTime) / 1000 / 60 > 60 && ((currentTimeMillis - callTime) / 1000 / 60) < (24 * 60)) {
        	// 大于60分钟且小于24小时
            strTime = ((currentTimeMillis - callTime) / 1000 / 60 / 60) + "小时前";
        } else if (((currentTimeMillis - callTime) / 1000 / 60) > (24 * 60) && ((currentTimeMillis - callTime) / 1000 / 60) < (24 * 60 * 7)) {
        	// 大于24小时且小于7天
            strTime = ((currentTimeMillis - callTime) / 1000 / 60 / 60 / 24) + "天前";
        } else if (((currentTimeMillis - callTime) / 1000 / 60) >= (24 * 60 * 7)) {
        	// 大于7天，显示具体时间日期
            strTime = new SimpleDateFormat("MM-dd HH:mm").format(callDate);
        }
        viewHolder.calls_list_callDate.setText(strTime);

import android.os.CountDownTimer;

/**
     * 
     * @param millisecond：毫秒值
     * @param timeText：显示倒计时的TextView控件
     */
public static void remainingTime(int millisecond, TextView timeText) {
        CountDownTimer countDownTimer = new CountDownTimer(millisecond, 1000) {
            @Override
            public void onTick(long millisUntilFinished) {
                ChatUtil.getIns().setPromotionSurplusMillisecond(millisUntilFinished);
                long day = millisUntilFinished / (1000 * 60 * 60 * 24);
                long hour = (millisUntilFinished - day * (1000 * 60 * 60 * 24)) / (1000 * 60 * 60);
                long minute = (millisUntilFinished - day * (1000 * 60 * 60 * 24) - hour * (1000 * 60 * 60)) / (1000 * 60);
                long second = (millisUntilFinished - day * (1000 * 60 * 60 * 24) - hour * (1000 * 60 * 60) - minute * (1000 * 60)) / 1000;
                String hourStr = hour + "";
                String minuteStr = minute + "";
                String secondStr = second + "";
                if (hour / 10 < 1) {
                    hourStr = 0 + hourStr;
                }
                if (minute / 10 < 1) {
                    minuteStr = 0 + minuteStr;
                }
                if (second / 10 < 1) {
                    secondStr = 0 + secondStr;
                }
                if (timeText != null) {
                    timeText.setText(hourStr + ":" + minuteStr + ":" + secondStr);
                }
            }

            @Override
            public void onFinish() {
                // 倒计时为0时
                if (timeText!= null) {
                    timeText.setVisibility(View.GONE);
                }
            }
        };
        countDownTimer.start();
    }