Never mind, I ended up writing my own class to solve the problem, I'll leave it here in case it gets useful for someone else:
/// <summary>
/// A static class that manages the Shaken event for the Accelerometer class
/// </summary>
public static class CustomAccelerometer
{
// The minimum acceleration value to trigger the Shaken event
private const double AccelerationThreshold = 2;
// The minimum interval in milliseconds between two consecutive calls for the Shaken event
private const int ShakenInterval = 500;
private static bool _AccelerometerLoaded;
private static Accelerometer _DefaultAccelerometer;
/// <summary>
/// Gets the current Accelerometer in use
/// </summary>
private static Accelerometer DefaultAccelerometer
{
get
{
if (!_AccelerometerLoaded)
{
_AccelerometerLoaded = true;
_DefaultAccelerometer = Accelerometer.GetDefault();
}
return _DefaultAccelerometer;
}
}
private static DateTime _ShakenTimespan = DateTime.Now;
private static bool _Enabled;
/// <summary>
/// Gets or sets whether or not the Accelerometer is currently enabled and can raise the Shaken event
/// </summary>
public static bool Enabled
{
get { return _Enabled; }
set
{
if (_Enabled != value && DefaultAccelerometer != null)
{
if (value) DefaultAccelerometer.ReadingChanged += _DefaultAccelerometer_ReadingChanged;
else DefaultAccelerometer.ReadingChanged -= _DefaultAccelerometer_ReadingChanged;
}
_Enabled = value;
}
}
// Handles the ReadingChanged event and raises the Shaken event when necessary
private static void _DefaultAccelerometer_ReadingChanged(Accelerometer sender, AccelerometerReadingChangedEventArgs args)
{
double g = Math.Round(args.Reading.AccelerationX.Square() + args.Reading.AccelerationY.Square() + args.Reading.AccelerationZ.Square());
if (g > AccelerationThreshold && DateTime.Now.Subtract(_ShakenTimespan).Milliseconds > ShakenInterval)
{
_ShakenTimespan = DateTime.Now;
Shaken?.Invoke(null, EventArgs.Empty);
}
}
/// <summary>
/// Raised whenever the Accelerometer detects a shaking gesture
/// </summary>
public static event EventHandler Shaken;
}
To use it, just enable it and subscribe to its event:
CustomAccelerometer.Enabled = true;
CustomAccelerometer.Shaken += (s, e) =>
{
Debug.WriteLine("The device was shaken!");
};
EDIT: forgot to add the Square method code, here it is:
/// <summary>
/// Returns the square of the given double value
/// </summary>
/// <param name="value">The input value</param>
public static double Square(this double value) => value * value;
