android 天时分倒计时,Android开发天时分秒倒计时

一、效果图

倒计时.png

二、思路

算多少秒，秒数取余60，(满足分后剩下的秒数)

算多少分，秒数除60，再取余60 (总分数满足小时后剩下的分数)

算多少时，秒数除60，除60，再取余24 (总小时满足天后剩下的小时)

算多少天，秒数除60，除60，除24 等到的整数就是天数

三、完整代码：

public static void liveDescCountTime(long ms,TextView tvDays, TextView tvHour,TextView tvMinutes,TextView tvSeconds){

long totalSeconds = ms / 1000;

long seconds = totalSeconds % 60;

long minutes = totalSeconds / 60 % 60;

long hours = totalSeconds / 60 / 60 % 24;

long days = totalSeconds / 60 / 60 / 24;

String dayStr = "";

if (days > 0){

if (days > 9) {

dayStr += days + "";

} else if (days > 0) {

dayStr += "0" + days + "";

} else {

dayStr += "00";

}

} else {

dayStr = "00";

}

tvDays.setText(dayStr);

String hourStr = "";

if (hours > 0){

if (hours > 9) {

hourStr += hours + "";

} else if (hours > 0) {

hourStr += "0" + hours + "";

} else {

hourStr += "00";

}

} else {

hourStr = "00";

}

tvHour.setText(hourStr);

String minutesStr = "";

if (minutes > 9) {

minutesStr += minutes + "";

} else if (minutes > 0) {

minutesStr += "0" + minutes + "";

} else {

minutesStr += "00";

}

tvMinutes.setText(minutesStr);

String secondStr = "";

if (seconds > 9) {

secondStr += seconds;

} else if (seconds > 0) {

secondStr += "0" + seconds;

} else {

secondStr += "00";

}

tvSeconds.setText(secondStr);

}

开始倒计时

Observable.interval(1,TimeUnit.MILLISECONDS)

.take(saveTime)

.observeOn(AndroidSchedulers.mainThread())

.subscribe(object :Observer{

override fun onComplete() {

}

override fun onSubscribe(d: Disposable) {

countTimeDisposable = d

}

override fun onNext(aLong: Long) {

TimeUtils.liveDescCountTime(Math.abs(aLong - saveTime),tv_8,tv_2,tv_4,tv_6)

}

override fun onError(e: Throwable) {

}

})

注：saveTime就是你的毫秒数