android中Chronometer控件怎么用

這篇文章主要介紹android中Chronometer控件怎么用，文中介紹的非常詳細(xì)，具有一定的參考價(jià)值，感興趣的小伙伴們一定要看完！

1、序言

Chronometer 是android 官方提供的計(jì)時(shí)器、可實(shí)現(xiàn)正/倒計(jì)時(shí)、格式固定：00:00:00；

2、使用

如圖xml 

xml 簡(jiǎn)化寫法如下：

<Chronometer
                android:id="@+id/tvEndTime"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"/>

3、發(fā)起倒計(jì)時(shí)

 tvEndTime.run {
            //格式化-> 距結(jié)束00:00:00
            format = "距結(jié)束%s"
            //設(shè)置倒計(jì)時(shí)時(shí)間 countDownTimeMill -》自定義 單位毫秒
            base = countDownTimeMill + SystemClock.elapsedRealtime()
            //是否為倒計(jì)時(shí)、
            isCountDown = true
            //倒計(jì)時(shí)監(jiān)聽 每隔一秒
            setOnChronometerTickListener {
                //倒計(jì)時(shí)結(jié)束
                if (SystemClock.elapsedRealtime() - it.base >= 0) {
                    it.stop()
                    return@setOnChronometerTickListener
                    // TODO: 2021/9/16 處理業(yè)務(wù)邏輯 
                }
            }
        }

4、自定義格式化

 tvEndTime.run {
            //格式化-> 距結(jié)束00:00:00
            format = "距結(jié)束%s"
            //設(shè)置倒計(jì)時(shí)時(shí)間
            base = countDownTimeMill + SystemClock.elapsedRealtime()
            //是否為倒計(jì)時(shí)、
            isCountDown = true
            //倒計(jì)時(shí)監(jiān)聽 每隔一秒
            setOnChronometerTickListener {
                //倒計(jì)時(shí)結(jié)束
                if (SystemClock.elapsedRealtime() - it.base >= 0) {
                    it.stop()
                    return@setOnChronometerTickListener
                   //自定義日期格式 如 1天 23:02:56
                it.text = TimeUtils.formatSecondByMill(86400 * 1000)
                }
            }
        }

工具類：

object TimeUtils {
    /**
     * 發(fā)送消息日期格式
     *
     * @param msgTimeMillis
     * @return
     */
    fun getMsgFormatTime(msgTimeMillis: Long): String? {
        val nowTime = Date()
        val msgTime = Date(msgTimeMillis)
        val days = differentDays(msgTime, nowTime)
        // 早上、下午、晚上 1:40
        val hourOfDay = DateUtils.getHour(msgTime)
        val whens: String = when {
            hourOfDay >= 18 -> { //18-24
                "晚上"
            }
            hourOfDay >= 13 -> { //13-18
                "下午"
            }
            hourOfDay >= 11 -> { //11-13
                "中午"
            }
            hourOfDay >= 5 -> { //5-11
                "早上"
            }
            else -> { //0-5
                "凌晨"
            }
        }
        return if (days < 1) {
            whens + " " + DateUtils.format(msgTime, "HH:mm")
        } else {
            // 昨天
            //            return DateUtils.format(new Date(msgTimeMillis), "yyyy年MM月dd日 ") + when + DateUtils.format(new Date(msgTimeMillis), " HH:mm");
            DateUtils.format(Date(msgTimeMillis), "yyyy年MM月dd日 ")
        }
    }
 
    /**
     * date2比date1多的天數(shù)
     * @param date1
     * @param date2
     * @return
     */
    private fun differentDays(msgTime: Date, nowTime: Date): Int {
        val cal1 = Calendar.getInstance()
        cal1.time = msgTime
        val cal2 = Calendar.getInstance()
        cal2.time = nowTime
        val day1 = cal1[Calendar.DAY_OF_YEAR]
        val day2 = cal2[Calendar.DAY_OF_YEAR]
        val year1 = cal1[Calendar.YEAR]
        val year2 = cal2[Calendar.YEAR]
        return if (year1 != year2) //同一年
        {
            var timeDistance = 0
            for (i in year1 until year2) {
                timeDistance += if (i % 4 == 0 && i % 100 != 0 || i % 400 == 0) //閏年
                {
                    366
                } else  //不是閏年
                {
                    365
                }
            }
            timeDistance + (day2 - day1)
        } else  //不同年
        {
            day2 - day1
        }
    }
 
    /**
     * 格式化秒數(shù)
     * des:%02d 長(zhǎng)度不夠2位的時(shí)前面補(bǔ)0
     */
    fun formatSeconds(seconds: Long): String? {
        return when {
            seconds <= 0 -> {
                "00:00"
            }
            seconds < 60 -> {
                String.format(Locale.getDefault(), "00:%02d", seconds % 60)
            }
            seconds < 3600 -> {
                String.format(Locale.getDefault(), "%02d:%02d", seconds / 60, seconds % 60)
            }
            else -> {
                String.format(
                    Locale.getDefault(),
                    "%02d:%02d:%02d",
                    seconds / 3600,
                    seconds % 3600 / 60,
                    seconds % 60
                )
            }
        }
    }
 
    fun formatSecond(seconds: Long): String? {
        return when {
            seconds <= 0 -> {
                "0分"
            }
            seconds < 60 -> {
                String.format(Locale.getDefault(), "%02d秒", seconds % 60)
            }
            seconds < 3600 -> {
                String.format(Locale.getDefault(), "%02d分%02d秒", seconds / 60, seconds % 60)
            }
            else -> {
                String.format(
                    Locale.getDefault(),
                    "%02d時(shí)%02d分",
                    seconds / 3600,
                    seconds % 3600 / 60,
                )
            }
        }
    }
 
    /**
     * 格式化日期 eg 天 時(shí):分:秒  00:00:00
     * @param dayUnit 單位 默認(rèn)不寫
     */
    fun formatSecondByMill(millTime: Long, dayUnit: String = "天"): String? {
        //小于一天、單位毫秒
        return if (millTime <= 86400 * 1000) {
            formatSeconds(millTime / 1000)
        } else {
            val oneDayMill = 86400 * 1000
            val day = millTime / oneDayMill
            val lastOneDayMills = millTime - day * oneDayMill
            "$day$dayUnit ${formatSeconds(lastOneDayMills / 1000)}"
        }
    }
 
}

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