如何以字符串格式 (01:30:24) 从特定时间开始计时？ [Android]

Question

如何在字符串格式的计时器中设置开始时间（例如 - 01:30:24）？

Nb：android 使用 Kotlin

Answer 1

根据这个post的回答，

我想你想要达到的是这个。

//1. parse your input as a date object.
SimpleDateFormat format = new SimpleDateFormat("HH:mm:ss");
Date startDate = format.parse("01:30:00");

//2. feed it to a Calendar Object
Calendar calendar = Calendar.getInstance();
calendar.setTime(startDate);

//3. get the hour, minute, second variable
int hour = calendar.get(Calendar.HOUR_OF_DAY);
int minute = calendar.get(Calendar.MINUTE);
int second = calendar.get(Calendar.SECOND);

//4. apply to your Chronometer class.
mChronometer.setBase(SystemClock.elapsedRealtime() - (hour * 60000 * 60 + minute * 60000 + second * 1000)))

希望对您有所帮助。

如何以字符串格式 (01:30:24) 从特定时间开始计时？ [Android]

How do i start chronometer from specific time in string format (01:30:24)? [Android]

java

android

stopwatch

chronometer

kotlin