private async Task RegisterBand()
{
bool backgroundRegistered = false;
var bandInfo = (await BandClientManager.Instance.GetBandsAsync()).FirstOrDefault();
var consentGranted = await GetConsentForHeartRate(bandInfo);
if (consentGranted.HasValue && consentGranted.Value)
{
// The Guid used for the RfcommServiceId is from the Package.appxmanifest.
var device =
(await
DeviceInformation.FindAllAsync(
RfcommDeviceService.GetDeviceSelector(
RfcommServiceId.FromUuid(new Guid("A502CA9A-2BA5-413C-A4E0-13804E47B38F")))))
.FirstOrDefault(x => x.Name == bandInfo.Name);
backgroundRegistered = device != null &&
await
BackgroundTaskProvider.RegisterBandDataTask(
typeof(BandDataTask).FullName,
device.Id);
}
if (backgroundRegistered)
{
var success =
new MessageDialog(
"The BandDataTask has been registered successfully and the app can be closed.",
"Background task registered");
success.Commands.Add(new UICommand("Ok", command => { this.IsBandRegistered = true; }));
await success.ShowAsync();
}
else
{
MessageDialog error;
if (consentGranted.HasValue && !consentGranted.Value)
{
error =
new MessageDialog(
"The BandDataTask was not registered as you have rejected consent to access the heart rate sensor. Please try again.",
"Background task not registered");
}
else
{
error =
new MessageDialog(
"The BandDataTask was not registered successfully. Check your Microsoft Band is connected and try again.",
"Background task not registered");
}
error.Commands.Add(new UICommand("Ok", command => { }));
await error.ShowAsync();
}
}
private async Task CompleteDeferral()
{
try
{
await this.SaveRecordedHealth();
}
catch (Exception ex)
{
// Handle saving failure
}
if (this.bandClient != null)
{
await this.StopSensorsRunning();
this.bandClient.Dispose();
this.bandClient = null;
}
BackgroundTaskProvider.UnregisterBandDataTask();
this.deferral.Complete();
}
