Question

如何在计时器中设置字符串格式的开始时间（例如-01:30:24）？

Nb：使用Kotlin的Android

Answer 1

根据此帖子的答案，

How do I start chronometer with a specific starting time?

我认为您想要实现的目标是

//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)))

希望有帮助。

如何从特定时间以字符串格式（01:30:24）启动计时器？ [Android]

1 个答案: