private async void PairingRequestedHandler(
DeviceInformationCustomPairing sender,
DevicePairingRequestedEventArgs args)
{
switch (args.PairingKind)
{
case DevicePairingKinds.ConfirmOnly:
// Windows itself will pop the confirmation dialog as part of "consent" if this is running on Desktop or Mobile
// If this is an App for 'Windows IoT Core' where there is no Windows Consent UX, you may want to provide your own confirmation.
args.Accept();
break;
case DevicePairingKinds.DisplayPin:
// We just show the PIN on this side. The ceremony is actually completed when the user enters the PIN
// on the target device. We automatically accept here since we can't really "cancel" the operation
// from this side.
args.Accept();
// No need for a deferral since we don't need any decision from the user
await rootPage.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
ShowPairingPanel(
"Please enter this PIN on the device you are pairing with: " + args.Pin,
args.PairingKind);
});
break;
case DevicePairingKinds.ProvidePin:
// A PIN may be shown on the target device and the user needs to enter the matching PIN on
// this Windows device. Get a deferral so we can perform the async request to the user.
var collectPinDeferral = args.GetDeferral();
await rootPage.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, async() =>
{
string pin = await GetPinFromUserAsync();
if (!string.IsNullOrEmpty(pin))
{
args.Accept(pin);
}
collectPinDeferral.Complete();
});
break;
case DevicePairingKinds.ProvidePasswordCredential:
var collectCredentialDeferral = args.GetDeferral();
await rootPage.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, async() =>
{
var credential = await GetPasswordCredentialFromUserAsync();
if (credential != null)
{
args.AcceptWithPasswordCredential(credential);
}
collectCredentialDeferral.Complete();
});
break;
case DevicePairingKinds.ConfirmPinMatch:
// We show the PIN here and the user responds with whether the PIN matches what they see
// on the target device. Response comes back and we set it on the PinComparePairingRequestedData
// then complete the deferral.
var displayMessageDeferral = args.GetDeferral();
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, async() =>
{
bool accept = await GetUserConfirmationAsync(args.Pin);
if (accept)
{
args.Accept();
}
displayMessageDeferral.Complete();
});
break;
}
}