| private PublishBinaryMessage ( [ messageType, [ message ) : long | ||
| messageType | [ | |
| message | [ | |
| return | long | |
private void PublishLaunchApp()
{
proximityDevice = Windows.Networking.Proximity.ProximityDevice.GetDefault();
if (proximityDevice != null)
{
// The format of the app launch string is: "<args>\tWindows\t<AppName>".
// The string is tab or null delimited.
// The <args> string can be an empty string ("").
string launchArgs = "user=default";
// The format of the AppName is: PackageFamilyName!PRAID.
string praid = "{b8c21b6b-2f16-49f6-9ee9-b3a713c54500}"; // The Application Id value from your package.appxmanifest.
string appName = Windows.ApplicationModel.Package.Current.Id.FamilyName + "!" + praid;
string launchAppMessage = launchArgs + "\tWindows\t" + appName;
var dataWriter = new Windows.Storage.Streams.DataWriter();
dataWriter.UnicodeEncoding = Windows.Storage.Streams.UnicodeEncoding.Utf16LE;
dataWriter.WriteString(launchAppMessage);
var launchAppPubId =
proximityDevice.PublishBinaryMessage(
"LaunchApp:WriteTag", dataWriter.DetachBuffer());
}
}
private void OnWriteableTagArrived(ProximityDevice sender, ProximityMessage message)
{
var dataWriter = new DataWriter();
dataWriter.UnicodeEncoding = Windows.Storage.Streams.UnicodeEncoding.Utf16LE;
string appLauncher = string.Format(@"mywaiter:MainPage?source=3");
dataWriter.WriteString(appLauncher);
pubId = sender.PublishBinaryMessage("WindowsUri:WriteTag", dataWriter.DetachBuffer());
}
public void PingAdversary(ProximityDevice device, NotifyNfcReady notify)
{
if (subscribeId != -1)
{
proximityDevice.StopSubscribingForMessage(subscribeId);
subscribeId = -1;
}
if (publishId != -1)
{
proximityDevice.StopPublishingMessage(publishId);
publishId = -1;
}
if (state == NfcManager.ProtoState.Busy)
{
return;
}
state = NfcManager.ProtoState.NotReady;
notifyReady = notify;
initialMessage.devicetime = random.NextDouble();
MemoryStream stream = new MemoryStream();
DataContractSerializer serializer = new DataContractSerializer(initialMessage.GetType());
serializer.WriteObject(stream, initialMessage);
stream.Position = 0;
var dataWriter = new DataWriter();
dataWriter.WriteBytes(stream.GetBuffer());
proximityDevice = device;
publishId = proximityDevice.PublishBinaryMessage("Windows.CarTrumps", dataWriter.DetachBuffer());
subscribeId = proximityDevice.SubscribeForMessage("Windows.CarTrumps", OnMessageReceived);
}
private void OnWriteableTagArrived(ProximityDevice sender, ProximityMessage message)
{
Deployment.Current.Dispatcher.BeginInvoke(() =>
{
try
{
if (
MessageBox.Show("Are you sure you want to write to this NFC Tag?", "Confirmation",
MessageBoxButton.OKCancel) == MessageBoxResult.OK)
{
var dataWriter = new DataWriter();
dataWriter.UnicodeEncoding = Windows.Storage.Streams.UnicodeEncoding.Utf16LE;
string appLauncher = string.Format(@"zVirtualScenes:MainPage?action=scene&id={0}",
SelectedScene.id);
dataWriter.WriteString(appLauncher);
pubId = sender.PublishBinaryMessage("WindowsUri:WriteTag", dataWriter.DetachBuffer());
MessageBox.Show("Completed writing to the tag.");
}
}
catch (Exception e)
{
MessageBox.Show("Could not write to the tag. Reason:" + e.Message);
}
finally
{
_proximityDevice.StopSubscribingForMessage(subid);
}
});
}
/// <summary>
/// Function to handle the chunk message and push the NFC message to proximity device.
/// </summary>
/// <param name="proximityDevice">ProximityDevice instance to be used.</param>
/// <param name="chuckData">IBuffer to chunk message.</param>
private static async Task NfcMessageHandlerAsync(ProximityDevice proximityDevice, IBuffer chuckData, CancellationToken ct)
{
using (var publishedEvent = new AutoResetEvent(false))
{
long publishedMessageId = INVALID_PUBLISHED_MESSAGE_ID;
publishedMessageId = proximityDevice.PublishBinaryMessage(
NFC_PROV_MESSAGE_PROTOCOL_NAME,
chuckData, (
Windows.Networking.Proximity.ProximityDevice device,
long messageId
) =>
{
publishedEvent.Set();
});
if (INVALID_PUBLISHED_MESSAGE_ID == publishedMessageId)
{
throw new System.ArgumentException("Published message ID returned was invalid.");
}
// Wait for the event to be signaled on a threadpool thread so we don't block the UI thread.
await Task.Run(() =>
{
// Wait for the message transmitted handler to ensure the NFC message has been processed internally.
WaitHandle.WaitAny(new WaitHandle[] { publishedEvent, ct.WaitHandle });
ct.ThrowIfCancellationRequested();
});
}
}
private void PublishLaunchApp()
{
proximityDevice = Windows.Networking.Proximity.ProximityDevice.GetDefault();
if (proximityDevice != null)
{
// The format of the app launch string is: "<args>\tWindows\t<AppName>".
// The string is tab or null delimited.
// The <args> string must have at least one character.
string launchArgs = "user=default";
// The format of the AppName is: PackageFamilyName!PRAID.
string praid = "MyAppId"; // The Application Id value from your package.appxmanifest.
string appName = Windows.ApplicationModel.Package.Current.Id.FamilyName + "!" + praid;
string launchAppMessage = launchArgs + "\tWindows\t" + appName;
var dataWriter = new Windows.Storage.Streams.DataWriter();
dataWriter.UnicodeEncoding = Windows.Storage.Streams.UnicodeEncoding.Utf16LE;
dataWriter.WriteString(launchAppMessage);
publishedUriId =
proximityDevice.PublishBinaryMessage(
"NDEF:WriteTag", dataWriter.DetachBuffer(), proximityWriteTagLaunchAppMessageTransmitCallback);
}
}
private void PublishLaunchApp()
{
proximityDevice = Windows.Networking.Proximity.ProximityDevice.GetDefault();
if (proximityDevice != null)
{
// The format of the app launch string is: "<args>\tWindows\t<AppName>".
// The string is tab or null delimited.
// The <args> string can be an empty string ("").
string launchArgs = "user=default";
// The format of the AppName is: PackageFamilyName!PRAID.
string praid = "{b8c21b6b-2f16-49f6-9ee9-b3a713c54500}"; // The Application Id value from your package.appxmanifest.
string appName = Windows.ApplicationModel.Package.Current.Id.FamilyName + "!" + praid;
string launchAppMessage = launchArgs + "\tWindows\t" + appName;
var dataWriter = new Windows.Storage.Streams.DataWriter();
dataWriter.UnicodeEncoding = Windows.Storage.Streams.UnicodeEncoding.Utf16LE;
dataWriter.WriteString(launchAppMessage);
var launchAppPubId =
proximityDevice.PublishBinaryMessage(
"LaunchApp:WriteTag", dataWriter.DetachBuffer());
}
}
