Windows Store App, Shaken

        Accelerometer _accelerometer;
        int _shakeCount = ;
        public MainPage()
        {
            this.InitializeComponent();
            _accelerometer=Accelerometer.GetDefault();
            if (_accelerometer != null)
                _accelerometer.Shaken += new TypedEventHandler<Accelerometer, AccelerometerShakenEventArgs>(Shaken);
        }        async private void Shaken(object sender, AccelerometerShakenEventArgs e)
        {
            await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
            {
                _shakeCount++;
            });            if (_shakeCount >= )
            {
                //method call
                _shakeCount = ;
            }
        }

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