private async void SetBpmValue(int bpmValue)
{
try
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
BpmValue = bpmValue;
var currentBpm = new HrModel
{
HeartRate = bpmValue,
PreviousMeasureHeartRate = bpmValue
};
if (_lastBpm != null)
{
currentBpm.PreviousMeasureHeartRate = _lastBpm.HeartRate;
currentBpm.PreviousMeasureTime = _lastBpm.Time;
}
BpmCollection.Enqueue(currentBpm);
_lastBpm = currentBpm;
});
}
catch (Exception exception)
{
var md = new MessageDialog(exception.ToString());
await md.ShowAsync();
}
}
private void GenerateSampleData()
{
var rnd = new Random();
var myList = new List <HrModel>();
var hr = new HrModel
{
Time = 0,
HeartRate = 65
};
myList.Add(hr);
for (var i = 1; i < 100; i++)
{
hr = new HrModel
{
Time = i,
HeartRate = 70 + rnd.Next(5)
};
myList.Add(hr);
}
hr = new HrModel
{
Time = 0,
HeartRate = 90
};
myList.Add(hr);
_lineSeries = LineChart.Series[0] as LineSeries;
if (_lineSeries != null)
{
_lineSeries.ItemsSource = myList;
}
}
private async void DisplayHrData()
{
var myList = new List <HrModel>();
for (var i = 0; i < 100; i++)
{
var hr = new HrModel {
Time = i
};
if (HrCollection.Count > i)
{
hr.HeartRate = HrCollection[i].HeartRate;
}
}
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
_lineSeries = LineChart.Series[0] as LineSeries;
if (_lineSeries != null)
{
_lineSeries.ItemsSource = myList;
}
});
}
private void CalculateStressLevel()
{
var firstBpm = BpmCollection.FirstOrDefault();
if (firstBpm == null)
{
return;
}
var currentBpm = BpmValue;
var diffHr = Math.Abs(currentBpm - firstBpm.HeartRate);
if (diffHr > 3)
{
StressValue++;
if (StressValue >= 8)
{
StressValue = 8;
var doc = new XmlDocument();
doc.LoadXml(_notificationContent);
var notification = new TileNotification(doc)
{
ExpirationTime = DateTimeOffset.UtcNow.AddMinutes(5)
};
TileUpdateManager.CreateTileUpdaterForApplication().Update(notification);
}
}
else if (diffHr == 1 || diffHr == 2)
{
}
else
{
StressValue--;
if (StressValue < 3)
{
StressValue = 3;
}
}
// calculate stress level
if (StressValue > 0 && StressValue < 5)
{
StressValueLevel = "Normal";
TextBlockStressLevel.Foreground = new SolidColorBrush(Colors.LightGreen);
_chartSeriesStress.Interior = new SolidColorBrush(Colors.LightGreen);
}
else if (StressValue >= 5 && StressValue < 8)
{
StressValueLevel = "Moderate";
TextBlockStressLevel.Foreground = new SolidColorBrush(Colors.Yellow);
_chartSeriesStress.Interior = new SolidColorBrush(Colors.Yellow);
}
else
{
StressValueLevel = "High";
TextBlockStressLevel.Foreground = new SolidColorBrush(Colors.OrangeRed);
_chartSeriesStress.Interior = new SolidColorBrush(Colors.OrangeRed);
}
var item = new HrModel
{
Stress = StressValue,
Time = DateTime.Now
};
if (_observableCollectionStress.Count > HrCollectionCount)
{
_observableCollectionStress.RemoveAt(0);
}
_observableCollectionStress.Add(item);
StressProcessingInformation = ($"Stress [{StressValue}] - Bpm: old {firstBpm.HeartRate} - current {BpmValue} - diff {diffHr} - time {firstBpm.Time:T}");
}
