void StartPeerWatcher()
{
if (peerWatcher == null)
{
peerWatcher = PeerFinder.CreateWatcher();
// Hook up events, this should only be done once
peerWatcher.Added += PeerWatcher_Added;
peerWatcher.Removed += PeerWatcher_Removed;
peerWatcher.Updated += PeerWatcher_Updated;
peerWatcher.EnumerationCompleted += PeerWatcher_EnumerationCompleted;
peerWatcher.Stopped += PeerWatcher_Stopped;
}
PeerWatcherStatus status = peerWatcher.Status;
if (status == PeerWatcherStatus.Created || status == PeerWatcherStatus.Stopped || status == PeerWatcherStatus.Aborted)
{
try
{
foundPeers.SelectionChanged -= PeersSelectionChanged;
availablePeers.Clear();
foundPeers.ItemsSource = availablePeers;
noPeersFound.Visibility = Visibility.Collapsed;
foundPeers.SelectionChanged += PeersSelectionChanged;
peerWatcher.Start();
progressBar.Visibility = Visibility.Visible;
}
catch (Exception err)
{
proximityStatus.Text = "Error starting PeerWatcher: " + err.ToString();
}
}
}
private static StreamSocket RunAsClient(string localPeerDisplayName, string remotePeerDisplayName)
{
PeerFinder.DisplayName = localPeerDisplayName;
PeerFinder.AllowInfrastructure = false;
PeerFinder.AllowBluetooth = false;
PeerFinder.AllowWiFiDirect = true;
PeerFinder.Start();
PeerWatcher watcher = PeerFinder.CreateWatcher();
watcher.Added += (sender, peerInfo) =>
{
if (peerInfo.DisplayName == remotePeerDisplayName)
{
SetRemotePeerInformation(peerInfo);
}
};
watcher.Start();
Task <StreamSocket> task = Task.Run(() =>
{
return((MResetEvent.WaitOne(30000))
? PeerFinder.ConnectAsync(RemotePeerInformation).AsTask().Result
: throw new Exception("Connect Timeout"));
});
EllipsisAnimation(task.Wait, "Connecting");
PeerFinder.Stop();
return(task.Result);
}
protected async override void OnNavigatedTo(NavigationEventArgs e)
{
PeerFinder.AllowBluetooth = true;
PeerFinder.AllowWiFiDirect = true;
PeerFinder.ConnectionRequested += PeerFinder_ConnectionRequested;
PeerFinder.TriggeredConnectionStateChanged += PeerFinder_TriggeredConnectionStateChanged;
PeerFinder.Start();
_peerWatcher = PeerFinder.CreateWatcher();
_peerWatcher.Added += _peerWatcher_Added;
_peerWatcher.Removed += _peerWatcher_Removed;
_peerWatcher.EnumerationCompleted += _peerWatcher_EnumerationCompleted;
_peerWatcher.Updated += _peerWatcher_Updated;
_peerWatcher.Start();
try
{
var allpeer = await PeerFinder.FindAllPeersAsync();
this.listviewAllDevice.ItemsSource = allpeer;
}
catch (Exception ex)
{
this.textboxDebug.Text += ex.Message + "\n";
}
}
void PeerFinder_StartPeerWatcher(object sender, RoutedEventArgs e)
{
if (!_peerFinderStarted)
{
// PeerFinder must be started first.
return;
}
if (_peerWatcherIsRunning)
{
// PeerWatcher is already running.
return;
}
try
{
if (_peerWatcher == null)
{
_peerWatcher = PeerFinder.CreateWatcher();
// Add PeerWatcher event handlers. Only add handlers once.
_peerWatcher.Added += PeerWatcher_Added;
_peerWatcher.Removed += PeerWatcher_Removed;
_peerWatcher.Updated += PeerWatcher_Updated;
_peerWatcher.EnumerationCompleted += PeerWatcher_EnumerationCompleted;
_peerWatcher.Stopped += PeerWatcher_Stopped;
}
// Empty the list of discovered peers.
_discoveredPeers.Clear();
// Start the PeerWatcher.
_peerWatcher.Start();
_peerWatcherIsRunning = true;
}
catch (Exception ex)
{
// Exceptions can occur if PeerWatcher.Start is called multiple times or
// PeerWatcher.Start is called the PeerWatcher is stopping.
}
}
// Handles PeerFinder_StartPeerWatcherButton click
void PeerFinder_StartPeerWatcher(object sender, RoutedEventArgs e)
{
if (_peerWatcherIsRunning)
{
rootPage.UpdateLog("Can't start PeerWatcher while it is running!", PeerFinderOutputText);
return;
}
rootPage.NotifyUser("Starting PeerWatcher...", NotifyType.StatusMessage);
try
{
if (_peerWatcher == null)
{
_peerWatcher = PeerFinder.CreateWatcher();
// Hook up events, this should only be done once
_peerWatcher.Added += PeerWatcher_Added;
_peerWatcher.Removed += PeerWatcher_Removed;
_peerWatcher.Updated += PeerWatcher_Updated;
_peerWatcher.EnumerationCompleted += PeerWatcher_EnumerationCompleted;
_peerWatcher.Stopped += PeerWatcher_Stopped;
}
_discoveredPeers.Clear();
PeerFinder_PeerListNoPeers.Visibility = Visibility.Collapsed;
PeerFinder_ConnectButton.Visibility = Visibility.Visible;
_peerWatcher.Start();
_peerWatcherIsRunning = true;
rootPage.UpdateLog("PeerWatcher is running!", PeerFinderOutputText);
PeerFinder_StartPeerWatcherButton.Visibility = Visibility.Collapsed;
PeerFinder_StopPeerWatcherButton.Visibility = Visibility.Visible;
}
catch (Exception ex)
{
// This could happen if the user clicks start multiple times or tries to start while PeerWatcher is stopping
Debug.WriteLine("PeerWatcher.Start throws exception" + ex.Message);
}
}
private void StartWatching()
{
if (peerWatcher == null)
{
peerWatcher = PeerFinder.CreateWatcher();
}
peerWatcher.Added += (PeerWatcher sender, PeerInformation peer) => {
Dispatcher.BeginInvoke(() => { peerApps.Add(new PeerAppInfo(peer)); });
};
peerWatcher.Removed += (PeerWatcher sender, PeerInformation peer) => {
Dispatcher.BeginInvoke(() => {
foreach (var peerApp in peerApps)
{
if (peerApp.PeerInfo.Equals(peer))
{
peerApps.Remove(peerApp);
break;
}
}
});
};
peerWatcher.Start();
}
