android|android Chronometer控件使用大全 androidChronometer控件使用大全

1、序言
2、使用
3、发起倒计时
4、自定义格式化

1、序言 Chronometer 是android 官方提供的计时器、可实现正/倒计时、格式固定：00:00:00；

2、使用如图xml

文章图片

xml 简化写法如下：

3、发起倒计时

tvEndTime.run {//格式化-> 距结束00:00:00format = "距结束%s"//设置倒计时时间 countDownTimeMill -》自定义单位毫秒base = countDownTimeMill + SystemClock.elapsedRealtime()//是否为倒计时、isCountDown = true//倒计时监听每隔一秒setOnChronometerTickListener {//倒计时结束if (SystemClock.elapsedRealtime() - it.base >= 0) {it.stop()return@setOnChronometerTickListener// TODO: 2021/9/16 处理业务逻辑 }}}

4、自定义格式化

tvEndTime.run {//格式化-> 距结束00:00:00format = "距结束%s"//设置倒计时时间base = countDownTimeMill + SystemClock.elapsedRealtime()//是否为倒计时、isCountDown = true//倒计时监听每隔一秒setOnChronometerTickListener {//倒计时结束if (SystemClock.elapsedRealtime() - it.base >= 0) {it.stop()return@setOnChronometerTickListener//自定义日期格式如 1天 23:02:56it.text = TimeUtils.formatSecondByMill(86400 * 1000)}}}

工具类：

object TimeUtils {/*** 发送消息日期格式** @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 1:40val 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多的天数* @param date1* @param date2* @return*/private fun differentDays(msgTime: Date, nowTime: Date): Int {val cal1 = Calendar.getInstance()cal1.time = msgTimeval cal2 = Calendar.getInstance()cal2.time = nowTimeval 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 = 0for (i in year1 until year2) {timeDistance += if (i % 4 == 0 && i % 100 != 0 || i % 400 == 0) //闰年{366} else//不是闰年{365}}timeDistance + (day2 - day1)} else//不同年{day2 - day1}} /*** 格式化秒数* des:%02d 长度不够2位的时前面补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时%02d分",seconds / 3600,seconds % 3600 / 60,)}}} /*** 格式化日期 eg 天时:分:秒00:00:00* @param dayUnit 单位默认不写*/fun formatSecondByMill(millTime: Long, dayUnit: String = "天"): String? {//小于一天、单位毫秒return if (millTime <= 86400 * 1000) {formatSeconds(millTime / 1000)} else {val oneDayMill = 86400 * 1000val day = millTime / oneDayMillval lastOneDayMills = millTime - day * oneDayMill"$day$dayUnit ${formatSeconds(lastOneDayMills / 1000)}"}} }

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