Do you need to use async with sensor values to be able to use them in another method?

Question

I have this code but when button click event is triggered sensor data stops being up dated. I would like the rotation to be constantly displayed.
        public void OnSensorChanged (SensorEvent e)
            if (e != null)
                rotationEditText.Text = e.Values [2].ToString("0.0");
        public void button_OnClick (object sender, EventArgs eventArgs)
             Thread.Sleep(5000);

Answer 1

I have two tasks that I'm trying to accomplish,
Calibrate Button click event reads phone orientation, waits one second, reads phone orientation, waits one second and then reads the phones orientation for a third time. In this event it will only record the orientation if the readings are within a percentage
range. This is to ensure the phone is stationary and recorded orientation is very accurate.
Recording Button click event is a lap timing method where the accelerometer and orientation readings will be recorded with the lap times.
In both cases the sensor readings need to be accessible in another method.
I tried changing the public void OnSensorChanged(SensorEvent e) to async but then it through an error saying there was no OnSensorChanged event.