/// <summary>
/// Registers the pedometer background task with a step goal of 50 steps.
/// </summary>
private void RegisterBackgroundTask()
{
// build the background task with the known entry points for Pedometer background task
var builder = new BackgroundTaskBuilder()
{
Name = SampleBackgroundTaskName,
TaskEntryPoint = SampleBackgroundTaskEntryPoint
};
// Get the current readings to find the current step counters
var currentReadings = sensor.GetCurrentReadings();
stepCount = 0;
foreach (PedometerStepKind kind in Enum.GetValues(typeof(PedometerStepKind)))
{
PedometerReading reading;
if (currentReadings.TryGetValue(kind, out reading))
{
stepCount += reading.CumulativeSteps;
}
}
// set a new step goal
stepGoal = stepCount + Scenario4_BackgroundPedometer.stepGoalOffset;
// create a Pedometer data threshold for that step goal
var threshold = new PedometerDataThreshold(sensor, stepGoal);
// create a sensor trigger using the above threshold
var trigger = new SensorDataThresholdTrigger(threshold);
builder.SetTrigger(trigger);
BackgroundTaskRegistration task = builder.Register();
task.Completed += new BackgroundTaskCompletedEventHandler(OnCompleted);
backgroundTaskRegistered = true;
UpdateUIAsync("Registered");
}
private async void start()
{
var aa = pedometer.GetCurrentReadings();
rs = aa[PedometerStepKind.Running].CumulativeSteps;
ws = aa[PedometerStepKind.Walking].CumulativeSteps;
double p = pressure.GetCurrentReading().StationPressureInHectopascals;
double h = Math.Round(nowH, 1);
double la = 200;
double lo = 200;
try
{
Geolocator geolocator = new Geolocator();
// 获取当前的位置
Geoposition pos = await geolocator.GetGeopositionAsync();
//纬度
la = pos.Coordinate.Point.Position.Latitude;
//经度
lo = pos.Coordinate.Point.Position.Longitude;
}
catch (UnauthorizedAccessException)
{
//未授权的访问异常
}
catch (Exception ex)
{
//超时 time out
}
dm.start(h, p, ws, rs, la, lo);
var settings = ApplicationData.Current.LocalSettings;
settings.Values["startRS"] = rs;
settings.Values["startWS"] = ws;
}