/// <summary>
/// Invoked when the device watcher detects that the proximity sensor was added.
/// </summary>
/// <param name="sender">The device watcher.</param>
/// <param name="device">The device that was added.</param>
private async void OnProximitySensorAddedAsync(DeviceWatcher sender, DeviceInformation device)
{
if (this.proximitySensor == null)
{
var addedSensor = ProximitySensor.FromId(device.Id);
if (addedSensor != null)
{
var minimumDistanceSatisfied = true;
//if we care about minimum distance
if (this.MinimumDistanceInMillimeters > Int32.MinValue)
{
if ((this.MinimumDistanceInMillimeters > addedSensor.MaxDistanceInMillimeters) ||
(this.MinimumDistanceInMillimeters < addedSensor.MinDistanceInMillimeters))
{
minimumDistanceSatisfied = false;
}
}
if (minimumDistanceSatisfied)
{
this.proximitySensor = addedSensor;
await SetActiveFromReadingAsync(this.proximitySensor.GetCurrentReading());
this.proximitySensor.ReadingChanged += ProximitySensor_ReadingChangedAsync;
}
}
}
}
/// <summary>
/// Invoked when the device watcher finds a proximity sensor
/// </summary>
/// <param name="sender">The device watcher</param>
/// <param name="device">Device information for the proximity sensor that was found</param>
private void OnProximitySensorAdded(Windows.Devices.Enumeration.DeviceWatcher sender, Windows.Devices.Enumeration.DeviceInformation device)
{
if (_sensor == null && ProximitySensor.FromId(device.Id) is ProximitySensor foundSensor)
{
_sensor = foundSensor;
}
}
public static async Task Initialize()
{
DeviceInformationCollection devices;
CallManager = await CallManager.GetSystemPhoneCallManagerAsync();
CallStore = await PhoneCallManager.RequestStoreAsync();
CallHistoryStore = await PhoneCallHistoryManager.RequestStoreAsync(PhoneCallHistoryStoreAccessType.AllEntriesReadWrite);
devices = await DeviceInformation.FindAllAsync(ProximitySensor.GetDeviceSelector());
ProximitySensor = devices.Count > 0 ? ProximitySensor.FromId(devices.First().Id) : null;
VibrationAccessStatus accessStatus = await VibrationDevice.RequestAccessAsync();
if (accessStatus == VibrationAccessStatus.Allowed)
{
VibrationDevice = await VibrationDevice.GetDefaultAsync();
}
try
{
DefaultLine = await PhoneLine.FromIdAsync(await CallStore.GetDefaultLineAsync());
}
catch
{
}
Initialized = true;
}
/// <summary>
/// Invoked when the device watcher finds a proximity sensor
/// </summary>
/// <param name="sender">The device watcher</param>
/// <param name="device">Device information for the proximity sensor that was found</param>
private async void OnProximitySensorAdded(DeviceWatcher sender, DeviceInformation device)
{
if (null == sensor)
{
ProximitySensor foundSensor = ProximitySensor.FromId(device.Id);
if (null != foundSensor)
{
if (null != foundSensor.MaxDistanceInMillimeters)
{
// Check if this is the sensor that matches our ranges.
// TODO: Customize these values to your application's needs.
// Here, we are looking for a sensor that can detect close objects
// up to 3cm away, so we check the upper bound of the detection range.
const uint distanceInMillimetersLValue = 30; // 3 cm
const uint distanceInMillimetersRValue = 50; // 5 cm
if (foundSensor.MaxDistanceInMillimeters >= distanceInMillimetersLValue &&
foundSensor.MaxDistanceInMillimeters <= distanceInMillimetersRValue)
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
rootPage.NotifyUser("Found a proximity sensor that meets the detection range", NotifyType.StatusMessage);
});
}
else
{
// We'll use the sensor anyway, to demonstrate how events work.
// Your app may decide not to use the sensor.
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
rootPage.NotifyUser("Proximity sensor does not meet the detection range, using it anyway", NotifyType.StatusMessage);
});
}
}
else
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
rootPage.NotifyUser("Proximity sensor does not report detection ranges, using it anyway", NotifyType.StatusMessage);
});
}
if (null != foundSensor)
{
sensor = foundSensor;
}
}
else
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
rootPage.NotifyUser("Could not get a proximity sensor from the device id", NotifyType.ErrorMessage);
});
}
}
}
private async Task AttachAsync()
{
if (ApiInformation.IsApiContractPresent("Windows.Phone.PhoneContract", 1))
{
var devices = await DeviceInformation.FindAllAsync(ProximitySensor.GetDeviceSelector());
if (devices.Count > 0)
{
_sensor = ProximitySensor.FromId(devices[0].Id);
//_sensor.ReadingChanged += OnReadingChanged;
_controller = _sensor.CreateDisplayOnOffController();
}
}
}
/// <summary>
/// Invoked when the device watcher finds a proximity sensor
/// </summary>
/// <param name="sender">The device watcher</param>
/// <param name="device">Device information for the proximity sensor that was found</param>
private async void OnProximitySensorAdded(DeviceWatcher sender, DeviceInformation device)
{
if (null == sensor)
{
sensor = ProximitySensor.FromId(device.Id);
if (null == sensor)
{
// failed to find the sensor corresponding to the id
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
rootPage.NotifyUser("Could not get a proximity sensor from the device id", NotifyType.ErrorMessage);
});
}
}
}
private void OnProximitySensorAdded(DeviceWatcher sender, DeviceInformation args)
{
if (_sensor == null)
{
ProximitySensor foundSensor = ProximitySensor.FromId(args.Id);
if (foundSensor != null)
{
_sensor = foundSensor;
}
else
{
// No proximity sensor found
Debug.WriteLine("No proximity sensor found");
}
}
}
/// <summary>
/// Invoked when the device watcher finds a proximity sensor
/// </summary>
/// <param name="sender">The device watcher</param>
/// <param name="device">Device information for the proximity sensor that was found</param>
private async void OnProximitySensorAdded(DeviceWatcher sender, DeviceInformation device)
{
if (null == sensor)
{
ProximitySensor foundSensor = ProximitySensor.FromId(device.Id);
if (null != foundSensor)
{
sensor = foundSensor;
}
else
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
rootPage.NotifyUser("Could not get a proximity sensor from the device id", NotifyType.ErrorMessage);
});
}
}
}
/// <summary>
/// Invoked when the device watcher finds a proximity sensor
/// </summary>
/// <param name="sender">The device watcher</param>
/// <param name="device">Device information for the proximity sensor that was found</param>
private async void OnProximitySensorAdded(DeviceWatcher sender, DeviceInformation device)
{
if (null == sensor)
{
ProximitySensor foundSensor = ProximitySensor.FromId(device.Id);
if (null != foundSensor)
{
// Optionally check the ProximitySensor.MaxDistanceInCentimeters/MinDistanceInCentimeters
// properties here. Refer to Scenario 1 for details.
sensor = foundSensor;
}
else
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
rootPage.NotifyUser("Could not get a proximity sensor from the device id", NotifyType.ErrorMessage);
});
}
}
}
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);
}
}