android - Accelerometer SensorEvent timestamp

Question

Im currently working on a android application.. I have to log the accelerometer sensor event coordinate with event time. I got the sensor event timestamp like "3497855005850" but i am not able to convert event timestamp into user readable date time format.Thanks in advance

How can i convert SensorEvent timestamp to unix timestamp?

Answer 1

The sensor timestamp is actually nanoseconds of uptime, not system time in nanoseconds. See SensorEvent.timestamp to absolute (utc) timestamp?.

In theory, you can convert sensor timestamp to time in milliseconds using:

long timeInMillis = (new Date()).getTime() 
                    + (sensorEvent.timestamp - System.nanoTime()) / 1000000L;

You could even bracket the (new Date()).getTime() call with two System.nanoTime() calls and average them to get closer to the actual offset.

Then you can format the sensor time as date and time.