I'm writing a simple app to monitor sync activities on Android and am stuck with SyncInfo.startTime which returns a value based on SystemClock.elapsedRealTime(). How do I convert this value to a regular Date object?
Found a solution to the problem:
new Date(System.currentTimeMillis()
- SystemClock.elapsedRealtime()
+ elapsedTime);
where elapsedTime is the time I receive from Android. As far as I've tested, this seems to return the correct date/time for an elapsed time. I'm just not very fond of this answer because Google warns not to use System.currentTimeMillis(). Unless someone has a better answer, I'm closing this question as answered.
来源：https://stackoverflow.com/questions/16318945/convert-elapsed-real-time-to-date