async Task GetOrRegisterProximityTaskAsync()
{
// This technique also valid for the Pedometer where you can specify
// a particular step count.
var deviceInfoList = await DeviceInformation.FindAllAsync(
ProximitySensor.GetDeviceSelector());
var deviceInfo = deviceInfoList.FirstOrDefault();
if (deviceInfo != null)
{
var proximtySensor = ProximitySensor.FromId(deviceInfo.Id);
var threshold = new ProximitySensorDataThreshold(proximtySensor);
var trigger = new SensorDataThresholdTrigger(threshold);
this.proximityTaskRegistration = FindOrRegisterBackgroundTaskFromLibrary(
"Proximity Trigger",
trigger);
}
}
/// <summary>
/// Registers the background task.
/// </summary>
private void RegisterBackgroundTask()
{
var builder = new BackgroundTaskBuilder()
{
Name = SampleBackgroundTaskName,
TaskEntryPoint = SampleBackgroundTaskEntryPoint
};
// create a Proximity data threshold
var threshold = new ProximitySensorDataThreshold(sensor);
// create a trigger using the threshold
var trigger = new SensorDataThresholdTrigger(threshold);
builder.SetTrigger(trigger);
BackgroundTaskRegistration task = builder.Register();
task.Completed += new BackgroundTaskCompletedEventHandler(OnCompleted);
registered = true;
UpdateUIAsync("Registered");
}
/// <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");
}
/// <summary>
/// Registers the background task.
/// </summary>
private void RegisterBackgroundTask()
{
var builder = new BackgroundTaskBuilder()
{
Name = SampleBackgroundTaskName,
TaskEntryPoint = SampleBackgroundTaskEntryPoint
};
// create a Proximity data threshold
var threshold = new ProximitySensorDataThreshold(sensor);
// create a trigger using the threshold
var trigger = new SensorDataThresholdTrigger(threshold);
builder.SetTrigger(trigger);
BackgroundTaskRegistration task = builder.Register();
task.Completed += new BackgroundTaskCompletedEventHandler(OnCompleted);
registered = true;
UpdateUIAsync("Registered");
}
/// <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");
}
