private void A_ReadingChanged(Accelerometer sender, AccelerometerReadingChangedEventArgs args)
{
UIApplication.SharedApplication.BeginInvokeOnMainThread(() =>
{
t.Text = args.Reading.AccelerationX + " " + args.Reading.AccelerationY + " " + args.Reading.AccelerationZ + " " + args.Reading.Timestamp + " " + DateTimeOffset.Now;
});
System.Diagnostics.Debug.WriteLine(args.Reading.AccelerationX + " " + args.Reading.AccelerationY + " " + args.Reading.AccelerationZ + " " + args.Reading.Timestamp + " " + DateTimeOffset.Now);
}